17.B)請根據(jù)句意從方框中選擇合適的詞,并用其適當形式填空,使句子通順.
    polite   fog   develop  two  they
51.ThesecondYouth Olympic Games will be held in Nanjing between August 16and 28,2014.
52.You won't be welcomed by anyone if you behave soimpolitelyin public.
53.It was evenfoggierthis morning.As a result,all the highways were closed.
54.This year's new policy of the high school recruitment(招生) can lead to a better balanceddevelopmentof education.
55.The storiesthemselves are not very interesting,but the music sounds wonderful.

分析 51.第二屆青年奧運會將于2014年8月16日和28日期間在南京舉行.
52.如果在公共場所你行為如此粗魯,你將不會受人歡迎的.
53.今天早晨霧更嚴重了,結(jié)果所有的高速公路被關(guān)閉了.
54.今年高校招生的新政策可以引導(dǎo)一個更好的教育平衡發(fā)展.
55.這些故事本身不是很有趣,但是音樂聽起來很優(yōu)美.

解答 51.second  52.impolitely 53.foggier  54.development  55.themselves
51.答案:second,two的序數(shù)詞形式,根據(jù)句意,可知是說第二屆青年奧運會,two是基數(shù)詞,應(yīng)用其序數(shù)詞形式second"第二".
52.答案:impolitely,考查副詞修飾動詞,根據(jù)句意,該句是說在公共場所,你做的如此粗魯,polite形容詞"有禮貌的",反義詞impolite"無禮的,粗魯?shù)?,而本句中behave"表現(xiàn),行為,舉止"是動詞,應(yīng)用副詞修飾,故填副詞形式impolitely.
53.答案:foggier,考查比較級用法,根據(jù)句意,該句是說今天早晨霧更加嚴重了,even"更加"修飾比較級,fog名詞"霧",本句應(yīng)用其形容詞形式foggy,其比較級形式是foggier.故填foggier.
54.答案:development,develop的名詞形式,根據(jù)句意,可知意思是說一個更好的教育平衡發(fā)展,develop動詞"發(fā)展",而"一個…發(fā)展"應(yīng)用名詞形式development.
55.答案:themselves,考查反身代詞,根據(jù)句意,故事本身不是很有趣,可知應(yīng)用they的反身代詞形式themselves"本身,自己".

點評 仔細分析句子,結(jié)合句意,利用相應(yīng)的語法知識,給出正確的單詞形式.

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