【編者按】為廣大考生朋友整理了英語語法要點，同學(xué)一起來學(xué)習(xí)吧!

一. 非謂語動詞的句子結(jié)構(gòu)分析技巧

_____many times , but he still couldn't understand it .

2. _____many times , he still couldn't understand it .

A.Having been told B. ToldC. He was told D. Though he had been told

分析：句1. 用連詞but 引導(dǎo)并列句子，因此，前面與后句一樣也是個

獨立句子成分，故選C。 句2. 句中用逗號隔開,且無連詞引導(dǎo)，因此，前面不是句子結(jié)構(gòu)，

只是句子的一個成分，故選A，用非謂語動詞作狀語。

句子結(jié)構(gòu)練習(xí)

3. ______to the left , you'll find the post office .

4. If you _____to the left , you'll find the post office .

5. ______to the left , and you'll find the post office .

A. Turning B. To turn C. Turn D. Turned

答案ACC

二. 非謂語動詞的邏輯主語分析技巧

確定要選非謂語動詞之后，第二步要分析其邏輯主語。非謂語動詞雖不能作謂語，但仍具有動詞特點，其邏輯上的動作執(zhí)行者就叫做邏輯主語。非謂語動詞作狀語時，其邏輯主語須和句子的真正主語一致。若不一致，則須加上自己的邏輯主語。

First ____ to the market, these products enjoyedgreat success.

A. introducing B. introduced C. introduce D. being introduced

分析: 非謂語動詞的邏輯主語是: these products,與句子的主語一致, 故選B

1._______no buses , we had to walk home.

2. ______Sunday, I shall have a quiet day at home .

A. There being B. It were C. There were D. It being

分析：句1. 表示“沒有公共汽車”，應(yīng)用“there be”結(jié)構(gòu)，

即邏輯主語是“there”，故選A 。 句2. 同理選D。

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