1 . You should not ________(做出决定) until you have considered carefully and cautiously. (根据汉语提示完成句子)

2 . The expert p________ that there will be an earthquake in that area in the near future. (根据首字母单词拼写）

3 . 爱默生反对她女儿嫁给这位年轻人。
① Emerson___________his daughter marrying the young man.
② Emerson was___________ his daughter marrying the young man.
③ Emerson___________  his daughter marrying the young man.
④ Emerson was___________his daughter marrying the young man.

4 . 当有人讲话时，你必须专心于理解他的主要思想。
① When someone delivers a speech, you must ___________ understanding his main ideas.(focus)
②When someone delivers a speech, you must ___________understanding his main ideas.(concentrate)
③When someone delivers a speech, you must ___________understanding his main ideas.(center/fix)
④When someone delivers a speech, you must ___________ understanding his main ideas.(pay)
⑤When someone delivers a speech,   you must ___________ understanding his main ideas.(put)
⑥When someone delivers a speech, you must___________understanding his main ideas___________.(bring)

5 . The swimmer ________ (浮出) from the lake, took a deep breath and then made another dive into the lake.(根据汉语意思单词拼写)

6 . 为了改善条件,他给学校捐赠了十万美元。
He ________ ________ ________ ________ the school for improving the condition.

7 . Many scientists feel that the current climate changes ________ from the heavy pollution.

A．arise

B．arouse

C．rise

D．raise

8 . ________ that he understands what is to be done.

A．Making sure

B．To make sure

C．Make sure

D．Having made

9 . There was a big storm after midnight and the rain p________ down. (根据首字母单词拼写)

10 . 根据句意，选择单词或短语并以其适当形式填空。

contribute to; as to; dream of; most of all; be surrounded by; be willing to

1. We have achieved what our forefathers never even ________.
2. Fresh air and exercise can ________ good health.
3. ________, she learned to be self-reliant.
4. ________ your final grade, that depends on your final examination.
5. If you ________ sell, we’ll buy.
6. He ________ reporters who had been lying in wait for him.