精英家教网 > 高中英语 > 题目详情

I never expected that I would be so busy. Why can’t there be 25 hours a day?” complained Lou Ran in Hong Kong as final exams were going on.

The 18-year-old girl was Fujian Province’s ___48__ scorer in last year’s college entrance examination. After leaving school, she chose the Chinese University of Hong Kong __49__ both Peking University and Tsinghus University promised her a place.

“I want to experience a more international school and social life in Hong Kong. I’m __50__ in journalism, so Hong Kong will surely help widen my horizons,” Liu said.

It is about four months since Liu Ran set __51_ on Hong Kong. She missed home a lot at the beginning, because of the food and __52__problems.

“The canteen offers mostly Western or Guangdong food, but it’s convenient to cook for ourselves in our dorm if we like. People speak Cantonese and almost all classes are in English,” Liu explained.

Her English and Cantonese are now improving, but she still needs more __53_ to adapt to the new environment.

“I’m happy that I made the right __54__ to study here. With a mix of the Eastern and Western__55__, there is so much to discover and learn,” she said.

48. top/ highest。

49. although / though。 句意是“(高中)毕业后,尽管北京大学和清华大学都录取了她,但她选择了中

50. majoring / interested.

51. foot。

55. cultures。

52. language。

53. time。

54. choice / decision。

55. cultures。


解析:

48.从下文她既可以进北大也可以进清华,最后选择进入香港大学学习,说明这个女孩是福建省去年的高考最高分.

49.句意是“(高中)毕业后,尽管北京大学和清华大学都录取了她,但她选择了中国香港大学学习。”从语法角度看是让步关系。

50. 根据文化背景知识可知香港融合了东西文化, 是个国际化的大都市。

51. foot。 set foot on…“踏上……”属于固定搭配。

52. 从下文“People speak Cantonese and almost all classes are in English.”可知, 她面临的是食物和语言问题。

53. 根据语境可以知道她仍然需要时间适应新的环境。

54. 句意是“我很高兴我做出了正确的选择/决定来到这里学习”。

55.Lou Ran 在香港大学学习, 她主修新闻专业。注意用现在进行时。

练习册系列答案
相关习题

科目:高中英语 来源:2012-2013学年浙江省杭州十四中高二上学期期中考试英语试卷(带解析) 题型:阅读理解

Have you got a Facebook account? Are you thinking of getting one? Jamie Simmonds has just signed up. Let’s see how she’s getting along.
My Diary
MONDAY: I’m officially a Facebooker. I find a few people I used to know and I’ve soon got seven friends. I’ve never felt so popular! I wonder if my old university flatmate Steve is on here…What do you know! He is! Maybe Facebook has its uses.
TUESDAY: I’ve received lots of nice welcoming messages on my wall. Later, I meet up with Steve for a drink after not seeing him for five years. We get on really well! Then, he uses his Facebook app for iPhone to suggest me as a friend to some other former classmates. Some of them even come to the pub and it’s just like old times – possibly a bit too much like old times. During the night, photos are uploaded to Facebook.
WEDNESDAY: Disaster! My mum’s on Facebook! Has she seen the photos of me dancing on the table from last night? Has she shown them to dad? Oh. And I have a friend request – mum again!
THURSDAY: There’s a message from my boyfriend, “so, it’s over then, ;is it?” Evidently I haven’t changed my settings to show I’m “in a relationship”, and I haven’t even added him as a friend. Ah, well, I wonder what my ex-boyfriend is doing… Whoops! I accidentally type his name into my status box instead of the search ‘ and now every one can see it on their news feed.’
FRIDAY: Time to update my status:“Work is boring. Can’t wait for the weekend!” Yeah, that about sums it up. Oh, look, I’ve received a comment! Someone must feel the same way. Lots of my friends now“like” this status.
SATURDAY: Good news! I’ve got 100 friends But wait! Someone’s “un-friended” me! I look through my “friend list” to try to work out who it was. Why did they do that? Am I really such a terrible person? I never knew Facebook could be this cruel.
SUNDAY: Wake up. Check my Facebook page. Make coffee. Check my Facebook page again. Get ready to leave. Change my mind and check my Facebook page … again. I am becoming addicted to it! I think it’s time to end it all before it takes over my life. I delete my account. Back to good, old, simple e-mails. Oh, look, I’ve got a message: A friend invited you to join Twitter. . .
In July 2010, Facebook had more than 500 million active users. The average Facebook user has 130 friends. Facebook is translated into more than 70 different languages. The world spends 700 billion minutes a month on Facebook. Facebook creator Mark Zuckerberg’s Facebook page says he’s a Harvard graduate, even though he actually dropped out to focus on Facebook. The site is valued at between $7.9 and $11 billion.
【小题1】 Why did Jamie’s boyfriend ask her whether she had broken up with him?

A.He had seen photos of Jamie dancing on the table.
B.She showed in her facebook that she was still not dating anyone.
C.Her boyfriend was angry that she refused to add him as her friend.
D.He saw the name of her ex-boyfriend on his news feed.
【小题2】Which of the following is conveyed in this article?
A.Visiting Facebook website took up a large part of Jamie’s time and energy.
B.Jamie is enthusiastic about her present job.
C.Facebook was created by a Harvard graduate, Mark Zuckerberg.
D.Compared with Facebook, Twitter is a better choice for Jamie.
【小题3】What does the word“un-friend” mean in“Someone’s ‘un-friended’ me!”?
A. Being unfriendly to others.
B. Having a quarrel with somebody.
C. Removing a name from the friend list.
D. Ending friendship with somebody.
【小题4】Which of the following is true according to the passage ?
A.Steve was Jamie’s boyfriend in the university.
B.People all over the world spend 700 billion minutes a week on Facebook.
C.Jamie’s mother has seen the photos of her dancing on the table.
D.Jamie felt enthusiastic about Facebook at first.
【小题5】It can be learned from the passage that the writer’s attitude towards Facebook is ______ .
A.approvalB.objectiveC.negativeD.positive

查看答案和解析>>

科目:高中英语 来源:2011届广东省佛山一中高三下学期2月联考英语卷 题型:填空题

首先请阅读下列6出电影的简要介绍,并按照要求匹配信息。
A.It is about the legend of vampire, the story of the wolf man, the campus life, moved love story, horror, adventure and other elements. The story begins with the main character, Isabella (Bella) Swan, moving from Phoenix, to the small town of Forks, a dreary and rain-filled place, to live with her father. She develops a relationship with fellow student, Edward Cullen, who initially annoys her, but despite a rough beginning, they fall in love. After witnessing some strange behavior from Edward, Bella eventually discovers that he is a vampire, but despite the very real risk to her life, she cannot bear to be apart from him. Eventually Bella is introduced to Edward’s vampire family, not all of who welcome her with open arms, however, it is Edward’s family that go to great lengths to save Bella when her life is threatened.
B. With an absent father and a withdrawn and depressed mother, 17 year-old Ree Dolly keeps her family together in a dirt poor rural area. She's taken backwards however when the local Sheriff(县治安官) tells her that her father put up their house for his bail(保释)and unless he shows up for his trial in a week's time, they will lose it all. She knows her father is involved in the local drug trade and manufactures crystal meth but anywhere she goes the message is the same: stay out of it and stop poking your nose in other people's business. She refuses to listen, even after her father's brother, Teardrop, tells her he's probably been killed. She pushes on, putting her own life in danger, for the sake of her family until the truth, or enough of it, is revealed.
C. Dom Cobb is a skilled thief, the absolute best in the dangerous art of extraction, stealing valuable secrets from deep within the subconscious during the dream state, when the mind is at its most vulnerable. Cobb's rare ability has made him a coveted(妄想的) player in this deceitful new world of corporate espionage, but it has also made him an international fugitive. Now Cobb is being offered a chance at redemption(赎). One last job could give him his life back but only if he can accomplish the impossible-inception. Instead of the perfect heist, Cobb and his team of specialists have to pull off the reverse: their task is not to steal an idea but to plant one. But no amount of careful planning or expertise can prepare the team for the dangerous enemy that seems to predict their every move...
D. Reflecting on her earlier life, she observes that for most of it she was either with a man or in the process of leaving one, and so in the first stages of her journey she experiments with singleness. Not with solitude, exactly, since Liz is naturally sociable and acquires friends easily. Back home in New York she has Delia, and in Rome a Swedish woman named Sofi introduces her to an amicable(心平气和)group of Italians, including a fellow whose last name is Spaghetti. While he is seen mainly in group shots, his namesake food is filmed in loving close-ups. In keeping with the theme of self-examination, Liz’s trip is confined to countries that begin with the letter “I”. From the ruins of Italy, to an ashram in India, and then to Indonesia......
E. John Crowley is a worried businessman and father of two children stricken with Pompe disease, suffering of muscle deterioration(恶化)with an age expectancy of nine years. With critical birthdays looming on the horizon, Crowley decides to take a chance and pursue research scientist Robert Stonehill, a rebellious thinker in the field of Pompe with radical ideas on enzyme therapy. Promising money he doesn't necessarily have, Crowley talks Stonehill into a business venture, pushing the irascible(暴躁的) scientist into research while he worries about the cash flow. With the clock ticking, Stonehill presents challenging theories, irritating the interest of pharmaceutical giants, who demand results practically overnight. With Stonehill feeling the heat during this demoralizing process, Crowley fights to maintain the face of Pompe, to keep the cure from becoming just another compromised drug on the market.
F. Bob Ho, a Chinese spy who was loaned to the CIA and is now retiring so he can settle down and marry his girlfriend, Gillian, who lives next door and doesn't know he's a spy. She thinks he's a pen importer. Around her, Bob acts like a boring country man, wears eyeglasses, and hides his super-spy abilities. Gillian loves that he's normal and reliable, not like her ex-husband, who ran off and left her with three kids. So Gillian has to go out of town because her father's in the hospital, and Bob volunteers to babysit so he can bond with the children. Meanwhile, a Russian terrorist named Poldark has escaped CIA custody and is looking for a top-secret code that young Ian accidentally downloaded from Bob's computer, which means Poldark and his goons are going to show up any minute now and kill them all. Bob must save the children -- and the world!
以下是电影中的部分对白,请匹配适合他们的电影。
【小题1】A. Yeah. I'm in love. I'm having a relationship with my pizza. You look like you're breaking up
with the    pizza. What's the matter?
B: I can't.
A: What do you mean, you can't? This is pizza in Napoli. It is your moral imperative to eat that pizza.
B: I want to, but I've gained, like, 10 pounds. I mean, I've got this.... Right here. What's it called? What's the word?
A: A muffin top. I have one too.
【小题2】   A: C came by looking for Dad. If he don't show up for his court date, we're gonna lose the house. I gotta     get down to the Arkansas line.
B: I gotta ask him. It's his truck. He said no.
A: Did you tell him I'd spring for gas?
B: I told him. He still won't.
A: Why not?
【小题3】A: Dream within a dream, huh. I'm impressed. But in my dream, you play by my rules.
B: Yes, but you see Mr. A...
C: We're not in your dream.
B: We're in mine.
【小题4】   A: Can we go back to business?
B: Would it help to mention I'm retired?
A: Retired men don't download secrets.
B: I never downloaded anything.
C: He's lying.
B: Who are you going to believe? Me or the traitor?
D: Someone has been a very naughty boy. He's got cameras and microphones mounted all over the     place.
D: Good plan, filming us together.
B: How could you turn against your country?
【小题5】   A: You're B, the new girl. Hi, I'm A, the eyes and ears of this place. Anything you need, tour guide, lunch date, shoulder to cry on?
B: I'm really kind of the more suffer-in-silence type.
A: Good headline for your feature. I'm on the paper, and you're news, baby, front page.
B: No, I'm not. You...Please don't have any sort of...
A: Chillax. No feature.
B: Okay, thanks.

查看答案和解析>>

科目:高中英语 来源:2015届浙江省高二上学期期中考试英语试卷(解析版) 题型:阅读理解

Have you got a Facebook account? Are you thinking of getting one? Jamie Simmonds has just signed up. Let's see how she's getting along.

My Diary

MONDAY: I'm officially a Facebooker. I find a few people I used to know and I've soon got seven friends. I've never felt so popular! I wonder if my old university flatmate Steve is on here…What do you know! He is! Maybe Facebook has its uses.

TUESDAY: I've received lots of nice welcoming messages on my wall. Later, I meet up with Steve for a drink after not seeing him for five years. We get on really well! Then, he uses his Facebook app for iPhone to suggest me as a friend to some other former classmates. Some of them even come to the pub and it's just like old times – possibly a bit too much like old times. During the night, photos are uploaded to Facebook.

WEDNESDAY: Disaster! My mum's on Facebook! Has she seen the photos of me dancing on the table last night? Has she shown them to dad? Oh. And I have a friend request – mum again!

THURSDAY: There's a message from my boyfriend, “so, it's over then, is it?” Obviously I haven't changed my settings to show I'm “in a relationship”, and I haven't even added him as a friend. Ah, well, I wonder what my ex-boyfriend is doing… Whoops! I accidentally type his name into my status box instead of the search  and now every one can see it on their news feed.

FRIDAY: Time to update my status: “Work is boring. Can't wait for the weekend!” Oh, look, I've received a comment! Someone must feel the same way. Lots of my friends now “like” this status.

SATURDAY: Good news! I've got 100 friends. But wait! Someone has “un-friended” me! I look through my “friend list” to try to work out who it was. Why did they do that? Am I really such a terrible person? I never knew Facebook could be this cruel.

SUNDAY: Wake up. Check my Facebook page. Make coffee. Check my Facebook page again. Get ready to leave. Change my mind and check my Facebook page … again. I am becoming addicted to it! I think it's time to end it all before it takes over my life. I delete my account. Back to good, old, simple e-mails. Oh, look, I've got a message: A friend invited you to join Twitter. . .  

In July 2010, Facebook had more than 500 million active users. The average Facebook user has 130 friends. Facebook is translated into more than 70 different languages. The world spends 700 billion minutes a month on Facebook. Facebook creator Mark Zuckerberg's Facebook page says he's a Harvard graduate, even though he actually dropped out to focus on Facebook. The site is valued at between $7.9 and $11 billion.

1.Why did Jamie's boyfriend ask her whether she had broken up with him?

A. He had seen photos of Jamie dancing on the table.

B. She showed in her Facebook that she was still not dating anyone.

C. Her boyfriend was angry that she refused to add him as her friend.

D. He saw the name of her ex-boyfriend on his news feed.

2.Which of the following is expressed in this article?

A. Visiting Facebook website took up a large part of Jamie's time and energy.

B. Jamie is enthusiastic about her present job.

C. Facebook was created by a Harvard graduate, Mark Zuckerberg.

D. Compared with Facebook, Twitter is a better choice for Jamie.

3.What does the word “un-friend” mean in “Someone has ‘un-friended' me!”?

A. Being unfriendly to others.

B. Having a quarrel with somebody.

C. Removing a name from the friend list.

D. Ending friendship with somebody.

4.Which of the following is true according to the passage ?

A. Steve was Jamie's boyfriend in the university.

B. People all over the world spend 700 billion minutes a week on Facebook.

C. Jamie's mother saw her dancing on the table last night.

D. Jamie felt enthusiastic about Facebook at first.

5.It can be learned from the passage that the writer's attitude towards Facebook is _________  .

A. subjective           B. objective            C. negative           D. positive

 

查看答案和解析>>

科目:高中英语 来源:2014届浙江省高二上学期期中考试英语试卷(解析版) 题型:阅读理解

Have you got a Facebook account? Are you thinking of getting one? Jamie Simmonds has just signed up. Let’s see how she’s getting along.

My Diary

MONDAY: I’m officially a Facebooker. I find a few people I used to know and I’ve soon got seven friends. I’ve never felt so popular! I wonder if my old university flatmate Steve is on here…What do you know! He is! Maybe Facebook has its uses.

TUESDAY: I’ve received lots of nice welcoming messages on my wall. Later, I meet up with Steve for a drink after not seeing him for five years. We get on really well! Then, he uses his Facebook app for iPhone to suggest me as a friend to some other former classmates. Some of them even come to the pub and it’s just like old times – possibly a bit too much like old times. During the night, photos are uploaded to Facebook.

WEDNESDAY: Disaster! My mum’s on Facebook! Has she seen the photos of me dancing on the table from last night? Has she shown them to dad? Oh. And I have a friend request – mum again!

THURSDAY: There’s a message from my boyfriend, “so, it’s over then, ;is it?” Evidently I haven’t changed my settings to show I’m “in a relationship”, and I haven’t even added him as a friend. Ah, well, I wonder what my ex-boyfriend is doing… Whoops! I accidentally type his name into my status box instead of the search ‘ and now every one can see it on their news feed.’

FRIDAY: Time to update my status:“Work is boring. Can’t wait for the weekend!” Yeah, that about sums it up. Oh, look, I’ve received a comment! Someone must feel the same way. Lots of my friends now“like” this status.

SATURDAY: Good news! I’ve got 100 friends But wait! Someone’s “un-friended” me! I look through my “friend list” to try to work out who it was. Why did they do that? Am I really such a terrible person? I never knew Facebook could be this cruel.

SUNDAY: Wake up. Check my Facebook page. Make coffee. Check my Facebook page again. Get ready to leave. Change my mind and check my Facebook page … again. I am becoming addicted to it! I think it’s time to end it all before it takes over my life. I delete my account. Back to good, old, simple e-mails. Oh, look, I’ve got a message: A friend invited you to join Twitter. . .

In July 2010, Facebook had more than 500 million active users. The average Facebook user has 130 friends. Facebook is translated into more than 70 different languages. The world spends 700 billion minutes a month on Facebook. Facebook creator Mark Zuckerberg’s Facebook page says he’s a Harvard graduate, even though he actually dropped out to focus on Facebook. The site is valued at between $7.9 and $11 billion.

1. Why did Jamie’s boyfriend ask her whether she had broken up with him?

    A. He had seen photos of Jamie dancing on the table.

    B. She showed in her facebook that she was still not dating anyone.

    C. Her boyfriend was angry that she refused to add him as her friend.

    D. He saw the name of her ex-boyfriend on his news feed.

2.Which of the following is conveyed in this article?

    A. Visiting Facebook website took up a large part of Jamie’s time and energy.

    B. Jamie is enthusiastic about her present job.

    C. Facebook was created by a Harvard graduate, Mark Zuckerberg.

    D. Compared with Facebook, Twitter is a better choice for Jamie.

3.What does the word“un-friend” mean in“Someone’s ‘un-friended’ me!”?

    A.  Being unfriendly to others.

    B.  Having a quarrel with somebody.

    C.  Removing a name from the friend list.

    D.  Ending friendship with somebody.

4.Which of the following is true according to the passage ?

   A. Steve was Jamie’s boyfriend in the university.

   B. People all over the world spend 700 billion minutes a week on Facebook.

   C. Jamie’s mother has seen the photos of her dancing on the table.

   D. Jamie felt enthusiastic about Facebook at first.

5.It can be learned from the passage that the writer’s attitude towards Facebook is ______  .

    A. approval          B. objective           C. negative        D. positive

 

查看答案和解析>>

科目:高中英语 来源:2010-2011学年广东省高三下学期2月联考英语卷 题型:信息匹配

首先请阅读下列6出电影的简要介绍,并按照要求匹配信息。

A.It is about the legend of vampire, the story of the wolf man, the campus life, moved love story, horror, adventure and other elements. The story begins with the main character, Isabella (Bella) Swan, moving from Phoenix, to the small town of Forks, a dreary and rain-filled place, to live with her father. She develops a relationship with fellow student, Edward Cullen, who initially annoys her, but despite a rough beginning, they fall in love. After witnessing some strange behavior from Edward, Bella eventually discovers that he is a vampire, but despite the very real risk to her life, she cannot bear to be apart from him. Eventually Bella is introduced to Edward’s vampire family, not all of who welcome her with open arms, however, it is Edward’s family that go to great lengths to save Bella when her life is threatened.

 

B. With an absent father and a withdrawn and depressed mother, 17 year-old Ree Dolly keeps her family together in a dirt poor rural area. She's taken backwards however when the local Sheriff(县治安官) tells her that her father put up their house for his bail(保释)and unless he shows up for his trial in a week's time, they will lose it all. She knows her father is involved in the local drug trade and manufactures crystal meth but anywhere she goes the message is the same: stay out of it and stop poking your nose in other people's business. She refuses to listen, even after her father's brother, Teardrop, tells her he's probably been killed. She pushes on, putting her own life in danger, for the sake of her family until the truth, or enough of it, is revealed.

 

C. Dom Cobb is a skilled thief, the absolute best in the dangerous art of extraction, stealing valuable secrets from deep within the subconscious during the dream state, when the mind is at its most vulnerable. Cobb's rare ability has made him a coveted(妄想的) player in this deceitful new world of corporate espionage, but it has also made him an international fugitive. Now Cobb is being offered a chance at redemption(赎). One last job could give him his life back but only if he can accomplish the impossible-inception. Instead of the perfect heist, Cobb and his team of specialists have to pull off the reverse: their task is not to steal an idea but to plant one. But no amount of careful planning or expertise can prepare the team for the dangerous enemy that seems to predict their every move...

D. Reflecting on her earlier life, she observes that for most of it she was either with a man or in the process of leaving one, and so in the first stages of her journey she experiments with singleness. Not with solitude, exactly, since Liz is naturally sociable and acquires friends easily. Back home in New York she has Delia, and in Rome a Swedish woman named Sofi introduces her to an amicable(心平气和)group of Italians, including a fellow whose last name is Spaghetti. While he is seen mainly in group shots, his namesake food is filmed in loving close-ups. In keeping with the theme of self-examination, Liz’s trip is confined to countries that begin with the letter “I”. From the ruins of Italy, to an ashram in India, and then to Indonesia......

 

E. John Crowley is a worried businessman and father of two children stricken with Pompe disease, suffering of muscle deterioration(恶化)with an age expectancy of nine years. With critical birthdays looming on the horizon, Crowley decides to take a chance and pursue research scientist Robert Stonehill, a rebellious thinker in the field of Pompe with radical ideas on enzyme therapy. Promising money he doesn't necessarily have, Crowley talks Stonehill into a business venture, pushing the irascible(暴躁的) scientist into research while he worries about the cash flow. With the clock ticking, Stonehill presents challenging theories, irritating the interest of pharmaceutical giants, who demand results practically overnight. With Stonehill feeling the heat during this demoralizing process, Crowley fights to maintain the face of Pompe, to keep the cure from becoming just another compromised drug on the market.

 

F. Bob Ho, a Chinese spy who was loaned to the CIA and is now retiring so he can settle down and marry his girlfriend, Gillian, who lives next door and doesn't know he's a spy. She thinks he's a pen importer. Around her, Bob acts like a boring country man, wears eyeglasses, and hides his super-spy abilities. Gillian loves that he's normal and reliable, not like her ex-husband, who ran off and left her with three kids. So Gillian has to go out of town because her father's in the hospital, and Bob volunteers to babysit so he can bond with the children. Meanwhile, a Russian terrorist named Poldark has escaped CIA custody and is looking for a top-secret code that young Ian accidentally downloaded from Bob's computer, which means Poldark and his goons are going to show up any minute now and kill them all. Bob must save the children -- and the world!

 

以下是电影中的部分对白,请匹配适合他们的电影。

1.A. Yeah. I'm in love. I'm having a relationship with my pizza. You look like you're breaking up

with the    pizza. What's the matter?

    B: I can't.

    A: What do you mean, you can't? This is pizza in Napoli. It is your moral imperative to eat that pizza.

    B: I want to, but I've gained, like, 10 pounds. I mean, I've got this.... Right here. What's it called? What's the word?

    A: A muffin top. I have one too.

2.  A: C came by looking for Dad. If he don't show up for his court date, we're gonna lose the house. I gotta     get down to the Arkansas line.

    B: I gotta ask him. It's his truck. He said no.

    A: Did you tell him I'd spring for gas?

    B: I told him. He still won't.

    A: Why not?

3.A: Dream within a dream, huh. I'm impressed. But in my dream, you play by my rules.

    B: Yes, but you see Mr. A...

    C: We're not in your dream.

    B: We're in mine.

4.  A: Can we go back to business?

    B: Would it help to mention I'm retired?

    A: Retired men don't download secrets.

    B: I never downloaded anything.

    C: He's lying.

    B: Who are you going to believe? Me or the traitor?

    D: Someone has been a very naughty boy. He's got cameras and microphones mounted all over the     place.

    D: Good plan, filming us together.

    B: How could you turn against your country?

5.  A: You're B, the new girl. Hi, I'm A, the eyes and ears of this place. Anything you need, tour guide, lunch date, shoulder to cry on?

    B: I'm really kind of the more suffer-in-silence type.

    A: Good headline for your feature. I'm on the paper, and you're news, baby, front page.

    B: No, I'm not. You...Please don't have any sort of...

    A: Chillax. No feature.

    B: Okay, thanks.

 

 

 

查看答案和解析>>

同步练习册答案