語(yǔ)句層次
六. It作形式主語(yǔ)時(shí)的常用句型
㈠形式一：It is+形容詞+that/wh-從句
例：It is important_____________________(保持生態(tài)平衡)。
答案：that we should keep the balance of nature
(本題考查It 作形式主語(yǔ)時(shí)的用法，英語(yǔ)中的主語(yǔ)從句有時(shí)為了避免頭重腳輕，常用it 作形式主語(yǔ)，而真正的主語(yǔ)用that引導(dǎo)放在后面)
㈡形式二：It+不及物動(dòng)詞+that…
例：He has been here only three days and
_______________________(由此可見(jiàn)他對(duì)那事一無(wú)所知)。
答案：it follows that he knows nothing about that
(本題考查 It+不及物動(dòng)詞+that…結(jié)構(gòu)，注意前后句子時(shí)態(tài)的一致)
㈢形式三：It+be+名詞+that…
例：It is our wish that__________________(他愛(ài)怎么樣就怎么樣)
答案：he does what he pleases
(本題考查 It作形式主語(yǔ)的同時(shí)，涉及了考試大虛擬語(yǔ)氣的考查，在it is our wish/hope that 等結(jié)構(gòu)中，從句子的謂語(yǔ)動(dòng)詞要用should+動(dòng)詞原形這樣的虛擬語(yǔ)氣)
㈣形式四：It+be+done+that…
例：It is said that____________________(宇宙形成于一次大爆炸以后)
答案：the universe formed after the Big Explode
(本題考查 It作形式主語(yǔ)的用法，常用于It+be+done+that…，結(jié)構(gòu)的動(dòng)詞有report, announce, expert等，常譯為“據(jù)說(shuō)”，“據(jù)報(bào)道”)
1.He told us not to wait for him because___________________(他是否來(lái)還不敢肯定)。
2.He has no intention of making progress so__________________(你老是幫助他是沒(méi)有用的)
3.（后來(lái)證實(shí)）________________she is a friend of my sister.
4.Nevertheless,_________________(不可否認(rèn)的是)，it can bring some side-effects
答案：
1. it was uncertain whether he would come
2. it is no use that you always help him
3. It turned out that
4. it cannot be denied that
六. It作形式主語(yǔ)時(shí)的常用句型
㈠形式一：It is+形容詞+that/wh-從句
例：It is important_____________________(保持生態(tài)平衡)。
答案：that we should keep the balance of nature
(本題考查It 作形式主語(yǔ)時(shí)的用法，英語(yǔ)中的主語(yǔ)從句有時(shí)為了避免頭重腳輕，常用it 作形式主語(yǔ)，而真正的主語(yǔ)用that引導(dǎo)放在后面)
㈡形式二：It+不及物動(dòng)詞+that…
例：He has been here only three days and
_______________________(由此可見(jiàn)他對(duì)那事一無(wú)所知)。
答案：it follows that he knows nothing about that
(本題考查 It+不及物動(dòng)詞+that…結(jié)構(gòu)，注意前后句子時(shí)態(tài)的一致)
㈢形式三：It+be+名詞+that…
例：It is our wish that__________________(他愛(ài)怎么樣就怎么樣)
答案：he does what he pleases
(本題考查 It作形式主語(yǔ)的同時(shí)，涉及了考試大虛擬語(yǔ)氣的考查，在it is our wish/hope that 等結(jié)構(gòu)中，從句子的謂語(yǔ)動(dòng)詞要用should+動(dòng)詞原形這樣的虛擬語(yǔ)氣)
㈣形式四：It+be+done+that…
例：It is said that____________________(宇宙形成于一次大爆炸以后)
答案：the universe formed after the Big Explode
(本題考查 It作形式主語(yǔ)的用法，常用于It+be+done+that…，結(jié)構(gòu)的動(dòng)詞有report, announce, expert等，常譯為“據(jù)說(shuō)”，“據(jù)報(bào)道”)
1.He told us not to wait for him because___________________(他是否來(lái)還不敢肯定)。
2.He has no intention of making progress so__________________(你老是幫助他是沒(méi)有用的)
3.（后來(lái)證實(shí)）________________she is a friend of my sister.
4.Nevertheless,_________________(不可否認(rèn)的是)，it can bring some side-effects
答案：
1. it was uncertain whether he would come
2. it is no use that you always help him
3. It turned out that
4. it cannot be denied that