1、学优中考网（）每天发布最有价值的中考资料！第 1 页 共 4 页8B Unit 1 Past and present(Grammar 2)The six period教学目标：1. To learn some new words.2. To learn the use of the present perfect tense.重点难点：短暂性动词和延续性动词的区别、用法及转换教学过程：Step1. Check the homework.Step2 .Add some irregular verbs.becomebecame-become choosechosechosen costcostco
2、st drinkdrankdrunk feelfeltfelt givegavegiven growgrewgrown hurt-hurthurt lend-lent-lent pay-paid-paid meet-met-met Step3. Explain the grammar.短暂性动词（瞬间性动词）由于动作不能延续，故不能与表示一段时间的状语 for或since连用。常见的短暂性动词有：go, come, borrow, open, close, stop, join, marry, die, become, arrive, reach, begin, start, leave, r
3、eceive, buy, put, lose，lend, find, finish 等。如果表达上述短暂性动词“继续多长时间”的概念，则需要改用与之相应的表示状态的系表结构，这种系表结构多为 be+ 形容词（副词、介词短语等）构成，试比较：误：He has come here for seven years.正：He has been here for seven years. He came here seven years ago.误：This factory has opened for several years.正：This factory has been open for sev
4、eral years.(open 是形容词，表示“开”的状态。) This factory opened several years ago.( closebe closed 用法同上)类似的词还有：diebe dead 误： His father has died for two months.学优中考网（）每天发布最有价值的中考资料！第 2 页 共 4 页正： His father has been dead for two months/since two months ago. or His father died two months ago. buyhave误： Sam has b
5、ought the knife for a week .正： Sam has had the knife for a week /since a week ago. or Sam bought the knife a week ago.get upbe up误： Xiao Ming has got up for an hour.正： Xiao Ming has been up for an hour. or Xiao Ming got up an hour ago.leavebe away from误： She has left here for two years.正： She has be
6、en away from here for two years. or She left here two years ago. borrowkeep误： Tom has borrowed the book for two days.正： Tom has kept the book for two days. or Tom borrowed the book the day before yesterday. joinbe in +组织/ be a member误： My brother has joined the League /army /Party for 10 years.正： My
7、 brother has been in the League /army /Party for 10 years/since 1995. or My brother has been a League member/ soldier/Party member for 10 years/since1995. or My brother joined the League /army /Party in 1995. start/ begin be on误： The film has begun for ten minutes.正： The film has been on for ten min
8、utes. or The film began ten minutes ago. come backbe back误： He has come back for three days.学优中考网（）每天发布最有价值的中考资料！第 3 页 共 4 页正： He has been back for three days. or He came back three days ago. marrybe married误： They have married for 15 years.正： They have been married for 15 years. or They got married
9、 15 years ago.Come be in/ at 误：My cousin has come to Beijing for a month.正：My cousin has been in Beijing for a month.or My cousin came to Beijing a month ago.Step6. Assignment1 He came to our village two years ago. = He _ _ _ our village since two years ago.2 He left home three days ago. = He _ _ _
10、_ home for 3 days.3 I bought the watch 2 weeks ago. = I _ _ the watch 2 weeks ago.4 It is 5 days since I borrowed the book. = I _ _ the book for 5 days.5 The film has begun for half an hour. = The film _ _ _ for half an hour.6 I got to know him 10 years ago. = I _ _ him for 10 years.7 There is a fat
11、ory. = There _ _ a factory for 20 years.8 Our school opened in 1960. = Our school _ _ _ since 1960.板书设计：8B Unit 1 Grammar (2)误：He has come here for seven years.正：He has been here for seven years. He came here seven years ago.误：This factory has opened for several years.正：This factory has been open for several years.(open 是形容词，表示“开”的状态。) This factory opened several years ago.( closebe closed 用法同上)教学反思：学优中考网（）每天发布最有价值的中考资料！第 4 页 共 4 页同学们也基本掌握了新词和新的短语，会读，但是能够默写的同学不是很多将近一半的不能写出来的，同学们还要在课后花些时间去复习巩固。
