初二普及版Units 1—7重点回顾(二)

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作者:李国 转贴自:本站原创 点击数:138 更新时间:2004-11-15 文章录入:admin
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4. It's much bigger than a chicken.
比较级前可以用much, a lot, a little, a bit等来修饰,而very, too, so, quite等不能修饰比较级,只能修饰原级。如:You should come a little earlier next time.
5. In the country, he can hear birds singing and sheep bleating.
感观动词常用句型:hear (see, watch) + 宾语 + 动词原形 / V-ing(作宾语补足语)。接V-ing时,表示动作正在进行;接动词原形时,表示动作的全过程或动作已经完成。如:I like watching them jumping and swimming.
6. The six students must keep their hands behind their backs.
keep作及物动词,意为“使保持某种状态”,其常用句型为:keep + sb. / sth. + 介词短语/形容词/doing sth. 如:Don't keep your mother waiting for long.
keep后可直接跟名词作宾语,这时keep词义很多,如:How long may I keep the book?(keep意为“借”)
Farmers keep a lot of pigs.(keep意为“饲养”)
keep用作及物动词时,后面还可接V-ing作宾语,表示“连续不断地做某事”。如:They kept working day and night in the old days.
keep还可作连系动词,后面常接形容词作表语。如:Please keep quiet!(完)


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