Monday, April 17
Dear Gramps,
I was so upset last week when somebody stole my Super Racer from the park by your house. I called up the toy company but they said they have only red, blue and green racers. Dad called Cobb's Toy Store today and found out they might have purple ones. Can we go there when I come to visit you next week?You and I were only gone for a few minutes to the shop down the street to get ice-cream and cookies. Maybe the thief was watching us. Mum was surprised when I told her the racer was stolen. She said she used to leave things at the park all the time when she was young. Once she even left her bicycle for two days near the swimming pool.
Tell Grandma that I like the food she made last time. Ask Grandma if we can have pancakes with sugar for breakfast when I come this time. I have packed in my towel, comb and soap. Tell her this time I won't forget to pack in my toothbrush.
Love
Toby
【小题1】This letter is written by________.

A．Gramps

B．Toby

C．Toby's Dad

D．Toby's Mum

【小题2】The writer wants to have a________racer.

A．red

B．blue

C．green

D．purple

【小题3】How long did the writer leave his Super Racer at the park?

A．Two days.

B．Over a week

C．A few minutes

D．All the time

【小题4】From the letter, we know Supper Racer is__________.

A．a toy

B．an ice-cream

C．a bicycle

D．a pancake

【小题5】Which of the following is TRUE according to the letter?

A．The writer visited Gramps quite often.

B．Cobb's Toy Store is far from Gramp's house.

C．The writer took his toothbrush with him on his last visit.

D．There were lots of thieves when Tony's mum was young.

Foolish(silly) Freddie lived in a small village. The people of the village laughed at him. They liked to show visitors how silly Freddie was. They thought this was a funny thing to do.
One day, a visitor came to the village.
"Watch this", a villager said, and called to Freddie. "Come and play a game, Freddie, " he shouted. Freddie walked slowly towards him, a silly smile on his face.
"Look! Freddie, "the villager said, "I've got something for you." He showed Freddie a dollar coin and a much larger 50-cent coin."Which would you like?" he asked Freddie.
Freddie took the 50-cent coin at once.
The villager laughed."See how foolish he is," he said."He always does that. He's too silly to learn anything." He walked away, leaving Freddie with the visitor.
The visitor felt sorry for Freddie and said to him, "Although the 50-cent coin is bigger than the＄1 coin, the＄1 coin is worth(值) much more.Two times as much."
"I know that," Freddie said."But once I take the＄1coin, they'll stop playing the game."
【小题1】People laughed at Freddie because__________.

A．he often made up jokes	B．he didn't like money
C．he looked very funny	D．they thought he was a fool

【小题2】The villagers wanted to show the visitors___________.

A．how silly Freddie was	B．how clever Freddie was
C．How kind people were to Freddie	D．that Freddie had much money

【小题3】The visitor felt sorry for Freddie because he though_________.

A．Freddie did not know money was useful

B．the villager was not kind enough to the boy

C．Freddie did not get along well with the villagers

D．Freddie did not know the dollar coin was worth more

【小题4】From the story we know that Freddie was__________.

A．poor

B．kind

C．clever

D．silly

【小题5】The best title for the passage should be __________.

A．Clever Villagers	B．"Foolish" Freddie
C．Freddie and a Visitor	D．A Visitor and the Villagers

【小题1】 Post 1 is aimed at people who want to_______.

A．make their moms happy	B．enjoy eating hamburgers
C．have cheap meals outside	D．eat chicken sea food

【小题2】The underlined word“REWARD”in Post 2 most probably means______.

A．招聘	B．海报
C．悬赏	D．求职

【小题3】According to Post 3, a 12^th-grade student takes_______.

A．OCT Test	B．SST Test
C．ISS Exams	D．HSC Exams

【小题4】 Oak Street Coaching School helps students to______.

A．become the best in class	B．improve their grades
C．perform well at parties	D．face the teachers bravely

You may know about “ junk food” like French fries. But do you know about “junk sleep”?
Recently, a British survey found that electronic(电子) products in teenagers bedrooms are affecting(影响)their sleep.
The survey was done among 1,000 British kids from 12 to 16. It found that percent of them got just 4 to 7 hours sleep every day. But doctors say they need 8 to 9 hours.
Almost a quarter of the kids said they fell asleep more than once a week while watching TV, listening to music or using other electronic products.
“This is very worrying.” Said Dr Chris Idzikowski, a British expert, “We call it ‘junk sleep’, It means you don’t get enough sleep and the quality of the sleep is bad, too. If you don’t get good rest, you don’t perform well in school the next day.”
The survey found that 40 percent of the kids felt tired each day, with girls between 13 and 16 feeling the worst. Nearly all the teenagers have a phone, Mp4 or TV IN THEIR BEDROOM. And many of them have all three.
【小题1】 This passage is mainly about______.

A．junk food	B．junk sleep
C．electronic products	D．the importance of sleep

【小题2】 _______of the children in the survey sleep only 4 to 7 hours a day.

A．200	B．300
C．500	D．1,000

【小题3】“Junk food” and “junk sleep”are similar to each other in the way that_______.

A．they are both low in quality	B．they are both produced in factories
C．people enjoy both in their spare time	D．they are both good to people’s health

【小题4】 Which of the following is TRUE according to the passage?

A．Teenagers need 4 to 7 hours of sleep each day.

B．Few of the teenagers have a phone in their bedrooms.

C．Teenagers spend too much time on electronic products.

D．Girls between 15 and 16 spend the least time on electronic products.

【小题5】 Which of the following is the best solution to the problem?

A．Parents watch TV together with their children

B．Forbid teenagers to use any electronic product.

C．Teenagers limit (限制) their use of the electronic products.

D．The use of mobile phone and Mp4 is not allowed at school

根据句意完成已给出首字母或汉语提示的单词，使补全后的句子意思通顺、语法正确。
【小题1】He is an________ boy, and he never tells lies.
【小题2】Lily asked me to keep it a s________, so I’m afraid I can’t tell you.
【小题3】You can’t learn a f_________ language well without enough practice.
【小题4】The class is too large, we’ll have to d_________ it into eight groups.
【小题5】This is our Art Room. Yours is on the _________(三) floor。
【小题6】The Smiths go to __________(教堂) every Sunday morning.
【小题7】As we know, China is an __________(亚洲)country.
【小题8】 Let me ___________(描述)how it happened.

 阅读下面短文，用括号内所给动词的适当形式填空，必要时可加助动词或情态动词。(请将各小题答案写在短文后相应的横线上)

Do you still remember Old Henry? Last Sunday, he    【小题1】  (go) for a walk with Wang Wang, his cute dog. It was a nice day. Old Henry sat down and watched Wang Wang   【小题2】 (play) with a friendly black cat. Then it was time to go home. Old Henry looked for his dog. But Wang Wang    【小题3】  (be) not there! Now Old Henry is very sad. He   【小题4】(miss) his dog and doesn’t want to do anything.

My pen pal Peter came to Beijing 3 months ago. There days he  【小题1】 (learn) Chinese in a language school. He likes travelling. And he  【小题2】  already      (visit) many great places of interest in our country. Next month, he  【小题3】  (fly) to Harbin for the summer vocation. I am sure he will have a good time.

（每空1分，）如图甲表示某生物膜结构，图中A、B、C、D、E、F表示某些物质，a、b、c、d表示物质跨膜运输方式。图乙和图丙表示物质运输曲线，请据图回答：

（1）A代表        分子，B代表           ，D代表           ；
（2）动物细胞吸水膨胀时B的厚度变小，说明B具有                 。
（3）维生素D和葡萄糖从肠腔进入小肠上皮细胞的过程分别是图中编号          。
（4）若图甲是癌细胞的细胞膜，则膜上含量较正常细胞减小的物质是[   ]        。
（5）若图中是线粒体膜，b和c过程运输的气体分别是          。b、c运输方式符号图         所表示的物质运输曲线。
（6）若图甲表示人体红细胞膜，则表示Na^＋、K^＋运输的分别是图中        。Na^＋、K^＋的运输方式符合图中          所示曲线。
（7）已知红细胞吸收葡萄糖是协助扩散，而有人认为小肠上皮细胞以主动运输的方式吸收葡萄糖，请设计实验加以确定。
①实验步骤：
第一步：取甲、乙两组生长状况相同的小肠上皮细胞，放入适宜浓度的含有葡萄糖的培养液中。
第二步：甲组细胞给予正常的呼吸条件，                                。
第三步：                                                            。
②预测实验结果并分析：
a．若甲、乙两组细胞对葡萄糖的吸收速率基本相同，则                   。
b．                                                                 。

为探究植物细胞膜的透性，某同学以红甜菜根（液泡中含有花青素）进行下列实验：
A．将不同切片放在不同温度的蒸馏水中处理1分钟后取出。
B．再分别放在清水中浸泡1小时而获得不同的切片浸出液。
C．测量这些溶液的花青素吸光度，得结果如下图。

请回答以下问题：
（1）上述实验操作步骤的叙述存在着一个明显的不足，没有遵循实验设计的　　　　原则。请你对上述实验中的不准确的操作重新进行叙述：　　　　　　　　　　　　。
（2）由上图中的曲线你可以得出的结论是　　　　　　　　　　　　　   　　　　。
（3）已知物质A能促进细胞膜上载体的活性。有人认为：经过不同温度的处理是影响了细胞膜上运载花青素的载体的活性。请你借助上述材料设计实验证明该观点是否正确。
材料用具：略。
实验步骤：
①                                                                  　；
②                                                                 　；
③                                                                   。
（2）预测结果及结论：
①                                                                   ；
②                                                                   ；

如图甲表示某生物膜结构，图中A、B、C、D、E、F表示某些物质，a、b、c、d表示物质跨膜运输方式。图乙和图丙表示物质运输曲线，请据图回答：


（1）若图甲是癌细胞的细胞膜，则膜上含量较正常细胞减少的物质是[　　]　　　　。
（2）若图甲是线粒体膜，b和c过程运输的气体分别是　　　　。b、c运输方式符合图　　　　所表示的物质运输曲线。
（3）若图甲表示人体红细胞膜，则表示Na^＋、K^＋运输的分别是图中　　　　　　。Na^＋、K^＋的运输方式符合图　　　　所示曲线。
（4）已知红细胞吸收葡萄糖是协助扩散，而有人认为小肠上皮细胞以主动运输的方式吸收葡萄糖，请设计实验加以确定。
①实验步骤：
第一步：取甲、乙两组生理状况相同的小肠上皮细胞，放入适宜浓度的含有葡萄糖的培养液中。
第二步：甲组细胞给予正常的呼吸条件，　　　　　　　　　。
第三步：　　　　　　　　　　　　　　　　。
②预测实验结果并分析：
a．若甲、乙两组细胞对葡萄糖的吸收速率基本相同，则　　　　　　　　　。
b．                                。