1. The mother said she would __ her son washing the dishes if he could finish his assignment before supper.

　　A let down B let alone C let off D let out

　　2. This kind of material can __ heat and moisture.

　　A delete B compel C constrain D repel

　　3. Understanding the cultural habits of another nation, especially __ containing as many different subcultures as the United States, is a complex task.

　　A one B the one C that D such

　　4. In order to raise money, Aunt Nicola had to __ with some of her most treasured possessions.

　　A divide B separate C part D abandon

5.The new appointment of our president __ from the very beginning of next semester.

　　A takes effect B takes part C takes place D takes turns

1-5 CDACA

1. 选C ①let off原谅，不处罚，放过 With your record, you can hardly expect to let off lightly. ②let down使失望，食言③let alone别管，别烦Let her alone! She didn’t pick a quarrel with you. ④let out让……离开Open the door and let the cat out.

2. 选D①delete消去，删除Delete his name from the list of applicants.②compel强迫，迫使(运用权利/力量对方采取行动)He was compelled by illness to give up his studies. ③constrain 限制，约束(强调内心情感)，后接不定式 His activities must be constrained.④repel排斥，抵制，防，抗We should not repel but protect young people’s enthusiasm.

3. 选A 依语意以句子结构，此处需要一个代词，表泛指，则选one;而the one表特指 Please get the chair for me, the one in the corner.

4. 选C ①part 不及物动词 “分别，离别”Scarcely an hour has passed since we parted.②divide分，划分Is the land to be divided up or sold as a whole?③separate使……分离④abandon抛弃，放弃The order was given to abandon ship.

5. ①take effect(药物)见效，(法律等)生效The new system of taxation will take effect next May. ②take part参加③take place发生，举行④take turns轮流，依次 They are unwilling to take turns at the same computer.

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