四、单项填空(共10分,每小题1分)
从下面各题所给的A、B、C、D四个选项中,选择可以填入空白处的最佳选项。
21.My father is a worker.___is very kind.
A.He B.She C.His D.It
22.More and more young people go skating___winter.
A.at B.in C.on D.to
23.—___did you stop playing?
—Because I was tired.
A.How B.Why C.When D.Where
24.The hotel is very old. It' s one of___buildings in the city.
A.old B.older C.oldest D.the oldest
25.—___I hand in the report today?
—No, you needn't t.
A.Can B.Must C.Shall D.Could
26.—How do you usually go to school?
—I___to school on foot.
A.go B.went C.was going D.will go
27.My mother___some washing when the telephone rang.
A.does B.did C.is doing D.was doing
28.Lily is my classmate. We___each other since she came to our school.
A.know B.knew C.have known D.will know
29.The mobile phone___in 1973.
A.invents B.is invented C.invented D.was invented
30.—Judy, could you tell me___the schoolbag?
—Oh, yes. I bought it in a store on the Internet.
A.where did you buy B.where will you buy
C.where you bought D.where you will buy
答案解析：
21. 句中“My father”表明是男性，这里需要一个主格代词作主语，A选项“He”是主格，符合要求;B选项“She”指女性;C选项“His”是形容词性物主代词;D选项“It”一般指物或婴儿等，所以选A。
22. “in winter”是固定搭配，表示“在冬天”，所以选B。
23. 根据答语“Because I was tired.”可知，问句是在询问原因，B选项“Why”表示“为什么”，符合语境，所以选B。
24. “one of + the + 形容词最高级 + 名词复数”表示“最……之一”，D选项“the oldest”符合该结构，所以选D。
25. 根据答语“No, you needn't.”可知，问句是用“Must”提问的一般疑问句，B选项“Must”符合，所以选B。
26. 问句“How do you usually go to school?”用的是一般现在时，答语也应该用一般现在时，A选项“go”是一般现在时形式，所以选A。
27. “when the telephone rang”表示过去某个时间点，主句表示在过去这个时间点正在进行的动作，要用过去进行时，D选项“was doing”是过去进行时结构，所以选D。
28. “since she came to our school”表示从过去某个时间点一直持续到现在，句子要用现在完成时，C选项“have known”是现在完成时结构，所以选C。
29. 手机是被发明出来的，要用被动语态，且时间是“in 1973”，是过去的时间，所以要用一般过去时的被动语态，D选项“was invented”符合，所以选D。
30. 这是一个宾语从句，宾语从句要用陈述语序，A、B选项是疑问语序，排除;根据答语“I bought it in a store on the Internet.”可知动作发生在过去，要用一般过去时，D选项是一般将来时，C选项“where you bought”是一般过去时的陈述语序，所以选C。
