题目内容
13．-How long does it take？-It takes _______．（ ）| A． | half an hour | B． | a hour | C． | two hour | D． | half a hour |
分析 --它花费了多长时间？
--花费了半个小时．
解答 答案：A．
hour，表示小时，是以元音音素开头的单词，表示一个小时应该说an hour，它是一个可数名词，表示一以上的数时应该用复数，所以排除掉选项BC．半个小时的说法是half an hour．
故选：A．
点评 本题考查数词的用法．解答时注意hour的读音和用法．
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| 16．A．sea | B．lake | C．mountain | D．river |
| 17．A．moving | B．exciting | C．anxious | D．nervous |
| 18．A．made | B．brought | C．watched | D．heard |
| 19．A．collected | B．jumped | C．turned | D．climbed |
| 20．A．light | B．sun | C．moon | D．lamp |
| 21．A．and | B．yet | C．but | D．or |
| 22．A．left | B．came to | C．stood by | D．played by |
| 23．A．make | B．sell | C．buy | D．offer |
| 24．A．house | B．holiday | C．garden | D．tide |
| 25．A．hardly | B．almost | C．still | D．perhaps |
| 26．A．waves | B．tides | C．hands | D．feet |
| 27．A．destroy | B．fix | C．use | D．build |
| 28．A．strong | B．weak | C．young | D．old |
| 29．A．children | B．boys | C．girls | D．grown-ups |
| 30．A．happy | B．tired | C．sad | D．sick． |