4．The children talked so loudly at dinner table that I had to struggle ________.

A．to be heard　 B．to have heard　 C．hearing　 D．being heard

解析：句意：孩子们吃饭的时候说话的声音非常大，我不得不极力(提高嗓门)让其他人听清我的话。我说话是被别人听见，故排除主动选项B、C。不定式表示目的，故A正确。

答案：A

3．-What’s the matter with you?

-After the long walk，my legs ________ and I couldn’t go any further.

A．gave out　 B．gave off　 C．gave in　 D．gave up

解析：句意：“你怎么不舒服？”“走这么长的路，我的腿没劲了不能再走了”。

答案：A

2．-Bob’s ________ the branches from the tree.Go and ________ for firewood.Bill!

-Do you think I’m really ________ for this kind of work?

A．cut away；cut them up；cut through 　　　B．cut off；cut them down；cut through

C．cut away；cut them up；cut out 　　　　　D．cut off；cut them down；cut out

解析：句意：“Bob已把树枝从树上砍掉，Bill，你去把它砍碎做柴禾。”“你认为我真的生来适合干这种活吗？”cut away“砍掉”之意，cut off“切断，隔绝”；cut...up“砍碎”；cut out“剪除，割掉”；cut through“取捷径”。

答案：A

1．I was just talking to Margaret when Jackson ________.

　 A．cut in　 B．cut down　 C．cut out　 D．cut up

解析：句意：我正在跟Margaret交谈，这时杰克逊插嘴了。本题考查cut的短语意义。cut in插嘴，打断别人说话；cut down砍倒，减少；cut out剪下，删节；cut up切碎。

答案：A

9．coastal　10.Chemical

10．C________ rain did damage to the environment.

答案：1.Process　2.dust　3.polluted　4.strength　5.citizens　6.forecast　7.campaign　8.recycle

9．Qingdao is a ________(沿海的)city.

8．We should try our best to ________(回收利用)the waste materials.

7．The company launched a huge advertising c________.

6．Weather experts have ________(预报)another big sandstorm in a week’s time.