2017年中考英語(yǔ)復(fù)習(xí):必考句型(五)

字號(hào):

25. It seems/appears (to sb) that… (在某人看來(lái))好像……
    此句中的it是主語(yǔ),that引導(dǎo)的是表語(yǔ)從句。例如:
    It seems that he is lying.
    看樣子他好像是在撒謊。
    It appears to me that he never smiles.
    在我看來(lái),他從來(lái)沒(méi)有笑過(guò)。
    26. It is +數(shù)詞+metres/kilometers long/wide… ……是多少米(公里)長(zhǎng)(寬)
    用來(lái)表示物體的長(zhǎng)(寬,高),如數(shù)詞大于一,名詞要用復(fù)數(shù)。例如:
    It is 20 metres long from this end to that end.
    從這端到那端有二十米長(zhǎng)。
    27. It’s time for sb. to do sth. 是某人干某事的時(shí)候了
    it是形式主語(yǔ),真正的主語(yǔ)是動(dòng)詞不定式to do sth. 例如:
    It’s time for the child to go to bed.
    孩子該睡覺(jué)了。
    比較下面兩種結(jié)構(gòu):
    ① It’s time for + n. 例如:
    It’s time for school.
    ②It’s time to do sth. 例如:
    It’s time to go to school.
    28. It takes sb. some time to do sth. 花費(fèi)某人多少時(shí)間做某事
    it是形式主語(yǔ),真正的主語(yǔ)是動(dòng)詞不定式to do sth。例如:
    It takes her fifteen minutes to walk to the bus stop from here.
    從這兒走著到公交車(chē)站將花費(fèi)她15分鐘。
    It took the old man three days to finish the work.
    那個(gè)老人花了三天時(shí)間完成這項(xiàng)工作。
    29. keep (on) doing sth. 一直堅(jiān)持做某事
    keep doing sth.一般用于靜態(tài)動(dòng)詞。keep on doing sth.意為“繼續(xù)不停地做某事”,一般用于動(dòng)態(tài)動(dòng)詞,但二者的區(qū)別并不是很?chē)?yán)格,有時(shí)可以互換。例如:
    Don’t keep on doing such foolish things.
    不要再做這樣的傻事了。
    He kept sitting there all day.
    他整天坐在那里。
    30. keep…from doing sth. 阻止......做某事
    相當(dāng)于stop…from doing sth., prevent…from doing sth. 在主動(dòng)句中,stop和prevent后面的from可以省略,但在被動(dòng)結(jié)構(gòu)中,from不可以省略。例如:
    Please keep the children from swimming in the sea.
    請(qǐng)別讓孩子到海里游泳。
    The big noise outside my room stopped me from doing my homework.
     屋外巨大的噪音使我不能做作業(yè)。