Unit 2 cloning using language课时作业

第一节　单项填空(共15小题；每小题1分，满分15分)

　　请认真阅读下面各题，从题中所给的A、B、C、D四个选项中，选出最佳选项。

1.-I feel nervous when taking an exam.

- and you can do it well.

A.Take it easy B.Take your time

C.Good luck D.It's up to you

2.When the captain found the ship was rapidly sinking，he ordered his men to send out a for help.

A.signal B.sign

C.symbol D.signature

3.Among the mountains a lake and next to the lake some cottages.

A.lie；stand B.lies；stands

C.lies；stand D.lie；stands

4.-Can I go now，sir?

-If you leave，do it quietly.

A.should B.must

C.shall D.may

5.Unfortunately，I didn't have a tire when my car broke down.

A.suitable B.spare

6.The drug is not harmful itself，but is dangerous，according to the new finding，if with alcohol.

A.taking B.being taken

C.to take D.taken

7. I went to the library，I saw him sitting on the same seat，reading carefully.

A.Now that B.If only

C.In order that D.Every time

8.-What's your plan for the one­week holiday?

-At this time next week we the warm sunshine in Maldives.

A.have been enjoying B.have enjoyed

C.will be enjoying D.are enjoying

9.Environmentalists are very worried that power stations will be built water resources are plentiful.

A.wherever B.whatever

C.whenever D.however