評論
打印
語句層次
六. It作形式主語時的常用句型
㈠形式一：It is+形容詞+that/wh-從句
例：It is important_____________________(保持生態平衡)。
答案：that we should keep the balance of nature
(本題考查It 作形式主語時的用法，英語中的主語從句有時為了避免頭重腳輕，常用it 作形式主語，而真正的主語用that引導放在后面)
㈡形式二：It+不及物動詞+that…
例：He has been here only three days and
_______________________(由此可見他對那事一無所知)。
答案：it follows that he knows nothing about that
(本題考查 It+不及物動詞+that…結構，注意前后句子時態的一致)
㈢形式三：It+be+名詞+that…
例：It is our wish that__________________(他愛怎么樣就怎么樣)
答案：he does what he pleases
(本題考查 It作形式主語的同時，涉及了考試大虛擬語氣的考查，在it is our wish/hope that 等結構中，從句子的謂語動詞要用should+動詞原形這樣的虛擬語氣)
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作形式主語的用法，常用于It+be+done+that…，結構的動詞有report, announce, expert等，常譯為“據說”，“據報道”)
1.He told us not to wait for him because___________________(他是否來還不敢肯定)。
2.He has no intention of making progress so__________________(你老是幫助他是沒有用的)
3.（后來證實）________________she is a friend of my sister.
4.Nevertheless,_________________(不可否認的是)，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
vt. 爆炸，駁倒
vi. 爆炸，爆發(感情)
