21. We must find out ________ Karl is coming, so we can book a room for him.
A. when B. how C. where D. why
【答案】A
【解析】考查宾语从语的引导词。句意:我们必须查明。根据后面的内容可知,“卡尔要来,我们可以为他订一个房间”,可知,只有知道他什么时来了,才能给他订房间,故选C项。
22. ________ his father works!
A. How careful B. How carefully C. What D. What careful
【答案】B
【解析】考查感叹句。How后紧跟形容词副词,what后跟形容词加名词。并且副词修饰实意动词work,所以选B。
23. She doesn’t talk much, ________?
A. is he B. doesn’t she C. did she D. does she
【答案】D
【解析】本题考查反意疑问句。在反意疑问句中,前肯定,后否定;前否定,后肯定。由于前半句中是否定形式doesn’t,故后面的附加问句部分为肯定形式,前面的句子中出现了does,所以后面的反意疑问句还应该用does,所以应该是does;故选D。
24. Just as I got to the school gate, I realized I ________ my book in the cafe.
A. have left B. had left C. would leave D. was leaving
【答案】B
【解析】句子的谓语动词realized 用的是过去式,说明“意识到”的动作是过去。而把书落在咖啡馆应该在此动作之前,即”过去的过去”,应该用过去完成时。A项是现在完成时;C项是过去将来时;D项是过去进行时,用排除法做此题,排除A、C和D项,故选B。
25. Schools should be lively places where individuals are encouraged to ________ to their greatest potential.
A. accelerate B. improve C. perform D. develop
【答案】D
【解析】考查动词辨析。句意:学校应该是鼓励个体最大限度地发展自己潜力的地方。develop发展,符合句意。accelerate加速;improve提高;perform表现。
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