—What a nice classroom!

 —It _____ every day.

A.is cleaning B.has cleaned C.must clean D.is cleaned

D 【解析】 试题分析：句意：多整洁的教室啊！它每天都被打扫。It指代classroom,教室，与谓语动词是被动关系，所以用被动语态:be+过去分词；故选D。

It is _____ that every student must go to school on time.

A. cleared B. clear C. clearly D. to clear

B 【解析】句意：毫无疑问每名学生必须按时上学。It is clear that意为“毫无疑问”。故选B。

China takes the leading position _____ space industry.

A.in B.at C.of D.up

A 【解析】 试题分析：句意：中国在航天工业处于领先位置。In…industry在……工业，介词用in。

Teachers should _____ their students to practice _____ English as much as possible.

A.encourage; speaking B.let; speak 

C.make; speak D.keep;speaking

A 【解析】 试题分析：句意：老师应该鼓励学生尽可能多的练习说英语。 Encourage鼓励；practice doing sth.练习做……,故选A

Maria has _____ trouble _____ math, so she often asks her math teacher for help.

A. much, understanding B. no, with

C. many, understanding D. not, to understand

A 【解析】试题分析：句意：玛丽亚很难理解数学，所以她经常请求数学老师帮助。have much trouble with sth/doing sth“很难做某事”。have no trouble with sth/doing sth“做某事不难”。trouble是不可数名词，故用much来修饰，而不用many修饰。根据so she often asks her math teacher fo...

If you have a chance _____ in a university, you shouldn’t give it up.

A. study B. studying C. to study D. studied

C 【解析】句意：如果你有机会在大学学习，你不应该放弃它。have a (good) chance to do sth. 表示“有（好）机会做某事”。故选C。

I bought a T-shirt yesterday. It was similar_____yours.

A. for B. to C. of D. from

B 【解析】句意：我昨天买了一件体恤衫。它和你的相似。be similar to意为“与……相似”，故选B。

—What is a writing brush used for?

—It’s used _____ writing and drawing.

A. as B. to C. for D. by

C 【解析】句意：——一支毛笔被用于做什么？——它被用于写字和画画。句意是“它用于写和画”，be used for doing sth被用于做某事。故选C。

_____, I must try my best to study English.

A. On purpose B. From now on

C. After all D. As soon as

B 【解析】 试题分析：句意：从现在开始，我一定尽最大努力学习英语。 A.On purpose 故意的；B. From now on从现在开始；C. After all毕竟。根据语意故选B。

情景交际。

1.你希望有一天能去上海，你可以这样说：

_____________________________________________

2.你与新同学相处有困难，你会这样对母亲说：

_______________________________________________

3.你想借用别人的电脑时，你应该说：

____________________________________________________

4.你想询问你的母亲昨天晚上去哪了，你可以这样问

Mom,_________________________________________ last night?

5.得知你的朋友后天将去北京旅游，你会这样对他说： ____________________________________________

1.I would like to go to Shanghai. 2.I don’t know how to get along with my new classmates. 3.Could I borrow your computer? 4.where did you go 5.Have a good trip 【解析】 1.此处应说“我想要去上海”，wo...