【正文】
Nanjing University Attached High School Zhu Yunhui I. Revision 1. It’ s a book.(指代 ) 2. It’ s eight o’ clock.(時間 ) 3. It’ s cold outside.(天氣 ) 4. It’ s a long way to the museum. 5. (距離 ) II. Empty subject it 1. We can use it as an empty subject 2. we use a noun clause as the subject of a sentence. ( correct) That we would not be able to understand Old English today is certain. b. ( correct) Whether English will continue changing in the future is easy to answer. c. ( correct) When we use certain words depends on the style of writing. a.( preferable) It is certain that we would not be able to understand Old English today.= ( preferable) It is easy to answer whether English will continue changing in the future.= ( preferable) It depends on the style of writing when we use certain words.= It 作形式主語的句型 : + be + adj. ( true, certain, possible, obvious, likely…) that… + be +noun phrase( no wonder, an honour, a pity,…) that… +be+pastparticiple ( said,reported,expected, 4. announced…)that… + seems/appears that…. doesn’ t matter that… B. When the subject is a toinfinitive: a. ( correct) To master a foreign language is hard. b. ( correct) To know how to use a puter is important. ( preferable) It is hard to master a foreign language.= ( preferable) It is important to know how to use a puter.= C. When the subject is a ving form a. ( correct) It is difficult to stop smoking. b. ( correct) It takes a lot of my time travelling to Beijing. We usually use the empty subject it