The earth is the only planet that scientists think has life．Why does the earth have life while the other planets don't?For one thing.the earth is just the right temperature．As the third planetfrom t 题目和参考答案——青夏教育精英家教网—

精英家教网 > 高中英语 > 题目详情

4．The earth is the only planet that scientists think has life．Why does the earth have life while the other planets don't？For one thing，the earth is just the right temperature．As the third planetfrom the sun，the earth seems to be just the right distance away．The planets which are closer to the sun are hot that their surfaces bake in the sun．The farthest planets are cold balls．
When the earth developed-which scientists believe may have happened about 4 billion years ago-many gases covered the earth．The gases caused the earth to be hot．But something wonderful happened．The temperature was just right for thick clouds to form．It rained very hard for a very long time．This gave the earth its oceans．Water made it possible for plants to grow．The plants created oxygen in the atmosphere．Oxygen is the gas that humans and animals breathe．
Only one other planet in the solar system seems to be something like the ear th．That planet is Mars．Mars is smaller than the earth，and it is quite a bit cooler．But it is not too cold for humans．On some days，the temperatures are as low as a winter day in the northern United States．If you wore a special space suit，you could walk around on Mars．You would have to bring your own air to breathe，the air on Mars is too thin to breathe．
Mars has the largest volcano （火山） in the solar system．It is sixteen miles high．The highest volcano on the earth is five miles high．The most unexpected sight on Mars is dried up river beds．Scientists believe that Mars was once much better than it is now．Does this mean there could have been living things on Mars？Scientists are not sure，but there has been no si gn so far．

29．Which of the following is NOT the reason that the earth has life？B
A．The earth is j ust the right temperature．
B．The volcanos on earth are lower than those on Mars．
C．There is oxygen in the atmosphere of the earth．
D．The earth seems to be just the right distance away from the sun．
30．The underlined phrase"the third planet"in the first paragraph refers toC．
A．the Sun B．the Moon C．the Earth D．the Mars
31．Which of the following about the Mars is NOT true？A
A．There could have been living things on Mars．
B．Mars has the largest volcano in the solar system．
C．There is almost no oxygen in the air on Mars．
D．Mars is smaller than the earth，and it is quite a bit cooler．

分析地球适合人类生存在于它合适的温度，科学家研究发现火星也比较适合人类生存．

解答 29-31 BCA
29．B 细节理解题．文中提到地球是可证实的唯一有生命存在的太阳系行星，其原因包括地球合适的温度、距太阳距离适中和大气里含有氧气等．B项火山与此无关．故B正确．
30．C 词义推测题．根据第一段中内容及As the third planet from the sun，the earth seems to be just the right distance away．可知距离太阳第三远的行星指的是地球．故C正确．
31．A 细节理解题．文章最后一段提到火星上有干涸的河床的迹象，但这一点并不能证实火星上存在生命，因为还没有生命迹象，故A项不正确．其他三项都与文章相符．故A正确．

点评阅读理解题测试考生在阅读基础上的逻辑推理能力，要求考生根据文章所述事件的逻辑关系，对未说明的趋势或结局作出合理的推断；或根据作者所阐述的观点理论，对文章未涉及的现象、事例给以解释．考生首先要仔细阅读短文，完整了解信息，准确把握作者观点．

练习册系列答案

天利38套中考总复习命题规律与必考压轴题系列答案

年级	高中课程	年级	初中课程
高一	高一免费课程推荐！	初一	初一免费课程推荐！
高二	高二免费课程推荐！	初二	初二免费课程推荐！
高三	高三免费课程推荐！	初三	初三免费课程推荐！
更多初中、高中辅导课程推荐,点击进入>>

相关习题

科目：高中英语 来源： 题型：阅读理解

14．My father was a quiet and gentle man．I adored （崇拜）him for as long as I can remember．I loved the way he treated people with such respect and kindness．
   On Sundays we usually took the bus into Manhatta，where we would do interesting things，like riding the Circle Line．He would point out every landmark and tell us the history behind it．He lov ed to take us on the subway to Nathan's in Coney Island．Once there，he w ould give my sister and me each a five-dollar bill and then he would enjoy himself for the afternoon with his newspapers．
   In 1968，we went to see the movie"Oliver"，a Charles Dickens'classic story of a young orphan（失去双亲的） boy．On the way home from the theater that afternoon he told us how he was raised in an orphanage in New York after both of his parents died．He told us the nuns（修女） were wonderful to him and loved him like a mother would．As he got older he was placed in a few foster （寄养家庭）homes before he joined the Army．
   When we were teenagers，he still took us out each weekend and he would ask us to invite specific friends to join us and he would pay for them．We often went to Yankee Stadium to watch the baseball game and he bought us tickets in the least expensive seats．To keep the cost down，he waited for us in the car where he read his newspapers and then took a nap．
   He was always happy and appreciated everything he had．He loved his two little girls and later his two granddaughters．He gave so much，yet he had so little．He thought he was the richest man in the world．
21．What would the writer's father do when in Nathan's？A
A．He would wait for us and read newspapers．
B．He would point out every landmark and have a good rest．
C．He would do interesting things，like riding the Circle Line
D．He would give my sister and me the chance to learn．
22．Where did the writer's father and Olive have in common？C
A．They both liked Charles Dickens'stories．
B．They were both adopted by families．
C．They both had ever been an orphan．
D．They both had been a brave soldier．
23．How did the writer's father like the life in the orphanage？D
A．Terrible．B．Upset．C．Tiring．D．Satisfying．
24．Why did the writer's father choose to take a nap？A
A．Because he wanted to save money．
B．Because he wanted to buy us expensive seats．
C．Because he wanted to have a very good rest．
D．Because he wanted to reward his foster parents．

查看答案和解析>>

科目：高中英语 来源： 题型：完形填空

15．A couple from Minneapolis，in the north，decided to go to Florida，in the south，for a long weekend during one particularly icy cold winter．They both had jobs，and had（41）cmanaging their travel schedules （日程安排）．It was decided the husband would fly to Florida on a Thursday，and his wife would（42）Dhim the next day．Upon arriving as（43）A，the husband checked into the（44）B．There he decided to（45）Dhis laptop （computer） and send his wife an e-mail back in Minneapolis．However，he（46）Aleft off one letter in her（47）Dand sent the e-mail without （48）C his error．
In the（49）D，in Houston，a lady had just returned from her husband's burial service（葬礼）．He was a minister （牧师）of many years who had been"called home to glory"（died and gone to report in heaven）because of a heart（50）B．The lady checked her e-mail，（51）Dmessages from family and friends．Upon （52）Bthe first message，she was so shocked as to fall to the floor．The lady's son（53）Ainto the room，found his mother on the floor and saw the computer （54）Cwhich read：
To：My （55）AWife．From：Your（56）DHusband Subject：I've arrived!
I've just （57）Cand have been checked （58）B．I see that everything has been prepared for your arrival tomorrow．Looking forward to seeing you then．Hope your（59）Bis as uneventful （平安的） as mine was．P．S．Sure is （60）Adown here．

41．A．confidence	B．argument	C．difficulty	D．doubt
42．A．visit	B．detect	C．track	D．follow
43．A．planned	B．aimed	C．meant	D．programmed
44．A．office	B．hotel	C．airport	D．station
45．A．set	B．begin	C．show	D．open
46．A．accidentally	B．willingly	C．purposely	D．aimlessly
47．A．article	B．sentence	C．letter	D．address
48．A．looking at	B．watching out	C．noticing	D．observing
49．A．absence	B．course	C．case	D．meantime
50．A．blow	B．attack	C．knock	D．strike
51．A．hearing	B．typing	C．hoping	D．expecting
52．A．taking	B．reading	C．staring	D．bringing
53．A．rushed	B．charged	C．hurried	D．walked
54．A．window	B．keyboard	C．screen	D．mouse
55．A．Loving	B．Living	C．Brave	D．Poor
56．A．Disappeared	B．Deserted	C．Dead	D．Departed
57．A．gone	B．died	C．arrived	D．left
58．A．over	B．in	C．back	D．out
59．A．journey	B．arrangement	C．voyage	D．adventure
60．A．quiet	B．hot	C．new	D．sad

查看答案和解析>>

科目：高中英语 来源： 题型：选择题

12．______ the youth _____the rising sun at 8or 9o'clock a．m，Mao ze dong expressed his great hope for the young man．（　　）

A．

Comparing； with

B．

Compared； to

C．

Compared； with

D．

Comparing； to

查看答案和解析>>

科目：高中英语 来源： 题型：阅读理解

19．Please excuse me if I'm a little sad today．Mark is leaving，and I'm feeling kind of sad．
You probably don't know Mark，but you might be lucky enough to know someone just like him．He's been the heart and soul of the office for a couple of years combining great professional（职业的） skills with a sweet nature．He just wants to do his job，and to do it superbly well．And now he's moving on to an exciting new professional opportunity．It sounds like it could be the chance of a lifetime，and we're genuinely，sincerely pleased for him．But that doesn't make it any easier to say goodbye to a dear friend and trusted colleague （同事）．
Life has a way of throwing these curve （曲线） balls at us，just when we start to get comfortable with a person，a place or a situation．A terrific （极好的） neighbor moves away．Someone in the family graduates．A child finds new love and loyalties through marriage．The family's bread-winner is laid off．
But how do we do that？A friend of mine who works for the government once told me that the answer to life's problems can be summed up in four words，"Go with the flow．"
"It's like surfing，"Chris explained．"You can't organize the ocean．Waves just happen．You ride them where they take you，then you paddle back out there and catch the next one．Sure，you're always hoping for the perfect wave where you can get．But mostly you just take them the way they come．"
I'm not exactly sure，but I think Chris was saying that life is a series of events-both good and bad．There will always be life-influencing factors over which you have no control．That doesn't mean you don't keep trying to make all your dreams come true．It just means that when things come up that aren't exactly in your plan，you work around them-and then you move on．Of course，some bumps along the road of life are easier to take than others．A rained-out picnic，for example，is easier to deal with than the sudden death of a loved one．But the principle （原理）is the same．
We're going to miss Mark，just like you'll miss that graduate，that neighbor or that newlywed．But rather than drown ourselves in the sadness of our parting，we'll focus on our hopes for a brighter future-for him，and for us．And then we'll go out and do everything we can to make that future happen．

68．The leaving of Mike makes the writer feelD．
A．really unpleasant        B．very angry
C．a little disappointed    D．both happy and sad
69．Which is NOT an unexpected thing in life mentioned in the passage？B
A．A rained-out picnic．
B．A terrific neighbor's visit．
C．The sudden death of a loved．
D．The graduation of a family member．
70．In the writer's opinion，one shouldC when unexpected things come up．
A．overcome difficulties and let them in control
B．do as planned
C．accept them and hope for a better future
D．never give up until he succeeds．

查看答案和解析>>

科目：高中英语 来源： 题型：阅读理解

9．One sixth of undergraduates （本科生） in Beijing this year have registered at a driving school．The students，mostly from majors such as business management or international trade，will finish there driving courses within 20 days or so．
Training costs have dropped to，2，600yuan for students，according to the Haidian Driving School in Beijing．The price is not really low，but students will accept it，seeing it as an investment （投资） in their future．Familiarity with the operation of computers and fluent English are the basic skills graduating students need to find a job．But a driver's permit has become another factor．
"In the job market，owning a driver's permit sometimes strengthens a graduating student's competitiveness for a good position，"says Zhou Yang，an undergraduate at the China University of Political Science and Law．
Cars will become a necessary part of many people's lives in the coming years，and it's difficult to get a permit out of campus because of the pressures on working people's time．"Having a full-time job after graduation offers limited time to learn to drive．We senior students have plenty of spare time，plenty of opportunities to learn．"
Xu Jian，an official at the driving school，said undergraduates were very able and serious，and could grasp in an hour what it took ordinary people four hours to learn．In this driving school，middle-aged people，young women and college students are the main customers．
To get a driver's permit，a beginner is now required to have at least 86 hours'practice before the final road test．
21．The undergraduates are learning to drive because．B
A．they like to drive cars
B．they need this skill to find a good job．
C．most of them will be able to buy cars in the future
D．they want to become full-time drivers after graduation
22．Which of the following is Xu Jian's opinion of students learning to drive？D
A．He decided it was a waste of money and time．
B．He thought they must learn it at school．
C．He thought they would spend three times more time．
D．He agreed that young people had an advantage in learning to drive．
23．Which of the following would be the best title of this passage？A
A．Students Learn to Drive 　
B．Welcome to Driving School
C．It's Better to Learn to Drive at College
D．Students Pay Less to Learn to Drive Now．

查看答案和解析>>

科目：高中英语 来源： 题型：信息匹配

16．5 ways to make you full of vigor
Here are some tips to follow at night that will help boost（提高） your energy in the morning．
Log out（退出）your instant messenger，Facebook and email．In the middle of the night they can interrupt your sleep．（36）BAnd，more than likely，if your friends see that you're logged out，they'll log out too．
Turn off you cellphone when it's time for bed，but don't just set it on vibration（震动）．（37）DThus，a buzz （震动声） can be just as loud as rings．Besides，if your friends have no one to talk to，maybe they'll be inspired to turn off their cellohones and go to sleep，too．
Get in the habit of shutting down your computer---especially if it's in your bedroom．Sometimes just logging out your instant messenger or Facebook is not enough．（38）GGet your cellphone out of your room completely．（39）AWhile your cellphone battery is restoring，you can get the sleep that you need to recharge you own battery．Having your cellphone in another room can reduce the chance that you'll use it during bedtime．
Make getting enough sleep your way to look and feel good．Getting enough sleep is a great way to look and feel refreshed in the morning．To get the sleep that you need，you'd better tell your friends that you will receive your last text，email or phone call an hour before bedroom．（40）C

A．Bright light from the screen can make it hard to fall and stay asleep．．
B．They can bother you even if you don't get up to answer them．
C．This way，they'll know their calls or texts will have to wait．
D．Late at night everything else is quiet
E．Using cellphone too much is bad for your health．
F．It's no use having your computer on at night．
G．Try charging your cellphone overnight in a separate room．

查看答案和解析>>

科目：高中英语 来源： 题型：填空题

13．Whether the other astronauts accept his idea remains a question．

查看答案和解析>>

科目：高中英语 来源： 题型：填空题

14．Use your head，you'll find a way to solve the problem.56．and．

查看答案和解析>>

同步练习册答案

练习册

高中

初中

小学