考查情態動詞 完成不定式使用

1．The boy _____ jump into the river from the bridge.
A．dareB．dares toC．daresD．dared
分析:a項中的dare作為情態動詞，僅用于否定句或問題句。它是肯定句中的實義動詞，后面應該連接to的不定式。正確答案是B項。

2．----Why! I couldn't get you on the telephone this morning.
　----We _____ tennis in the yard when you phoned.
A．must be playingB．could be playing
C．must have playedD．must have been playing
分析:時間狀語從句 you phoned，說明這個問題要用“說明這個問題要用”must have been 動詞-ing形式“推測過去，所以D項是正確答案。

3．----I stayed at a hotel while in New York.
　----Oh, did you? You _____ with Barbara.
A．could have stayedB．could stay
C．would stayD．must have stayed
分析:本題考查情態動詞 完成不定式使用。a hotel一般是指表類，意思是住旅社，而不是住親戚或朋友家。must have stayed 這是一個非常積極的猜測。住在旅館里可能是任何一個，不一定是和巴巴拉住在一起。D項在語氣上也和語氣一樣。 did you不連貫，故選 A。

4．----When can I come for the photos? I need them tomorrow afternoon.
----They _____ be ready by 12:00.
A．canB．shouldC．mightD．need
分析：should表示，略帶懷疑的猜測不僅回答了客戶的問題，而且對照片可能沒有清洗干凈，客戶無法獲得旋轉的空間，所以答案是B。

5．A rich man _____about his next meal.
A. does not need to worryB. does not need worry
C. needs not worryD. needs not to worry
分析：need作為行為動詞的用法：need to do sth; don't need to do sth.；作為情態動詞的用法：need do sth. ; need not do sth.根據問題的答案選擇A項。

6.Someone has_____ you should_____ the area of skin at once.
A. burnt; cold　B .burned; cool
C. burning; coldD. some burns; cool
分析：選項D中的burns是名詞。burn可用作名詞：injury, mark made by fire, heat or acid燒傷（由火、熱或酸引起）；燒傷。cold不能用動詞，而是表示“使…冷卻”，我們可以用動詞coll. 正確答案是D項。
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