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1、Lesson 16,Present Perfect Tense(现在完成时):,结构：助动词 have/has + p.p.(过去分词),用法：1.表示过去发生或已经完成的某一动作对现在造 成的影响和结果。 I have finished my homework.,2.表示过去已经开始，持续到现在的动作或状态， 经常和表示从过去某一时刻延续到现在（包括 “现在”在内）的一段时间的状语连用。 She has lived in Beihai for 20 years. I have been at this school for 13 years. He has taught us since(自
2、从) last year.,She has taught us a lot.She hasnt taught us a lot.Has she taught us a lot? Yes, she has. No, she hasnt.,I have had my lunch.,I havent had my lunch.,Have you had your lunch?,Yes, I have. No, I havent.,现在完成时和一般过去时的区别：,现在完成时：强调现在的情况，不能和表示过去的时 间状语连用，如：yesterday, last night, three weeks ago
3、, in 1990等，但常和already, never, ever, just, before, yet, since 等状语 连用。,一般过去时：只表示过去的动作或状态，和现在没有任 何关系，常和表示过去的时间状语连用。,I have seen the film. 我看过这部电影。I saw the film last week. 我上星期看了这部电影。,用所给单词的适当形式填空：1. She _(teach) us for two years.2. He _(teach) us last year.3. They _(live) here in 1973.4. She _(see) th
4、e film eight days ago.5. She _(see) the film.6. Yesterday Tom _(go) to school by bike.7. Mr. Li _ (teach) us since September.,has taught,taught,lived,saw,has seen,went,_,_,_,_,_,has taught,_,原形或三单,always, usually, often, sometimes, every day ,过去式,yesterday, last night, two weeks ago, in 1990 ,be + v
5、-ing,now, Listen! , Look! ,will+动原be going to +动原,tomorrow, next week, next year,have/has+p.p.,already, never, ever, forsince , just, yet, before,时间表达法（一）1. 整点的表达： 用“数字或基数词+oclock”表示,6:00 6 oclock six oclock12:00 12 oclock twelve oclock,6:30 six thirty7:45 seven forty-five8:01 eight o one (o 读字母o音),
6、2. 非整点的表达：,时 + 分,时间表达法 （二）,a) 表示“几点过几分（30分钟以内，包括30分钟）” 用“分钟数past整点数”表示。常用half 代替30 分钟(thirty)，用a quarter代替15分钟(fifteen) 。 如: 9:20 twenty past nine 8:30 half past eight 10:15 a quarter past ten,b) 表示“几点差几分（超过30分）” 用“分钟数to整点数”表示。 如: 4:50 ten to five .（即5点还差10分） 7:45 a quarter to eight,1. 整点的表达：用“数字或基数
7、词+oclock”表示,2. 非整点的表达：,9:003:155:307:056: 452:558:26,9 oclock nine oclock,a quarter past three,half past five,five past seven,a quarter to seven,five to three,twenty-six past eight,12:00,4:15,9:30,8:05,3: 45,6:50,7:24,12,2,1,3,4,5,6,7,8,9,10,11,12,12,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,W
8、hats the time?,Its “five to three.”,ten past three,twenty-five to four,ten after three,12,2,1,3,4,5,6,7,8,9,10,11,12,12,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,Whats the time?,Its “a quarter to three.”,a quarter past three,half past three,a quarter after three,half after three,1. How many su
9、bjects do you study? What are they?,2. Whats your favourite subject?,Think about it!,3. Whats Li Mings favourite subject? Make a guess.,Chinese math(s) Englishhistory geography biology P.E.physics politics art music computer,1. How long has Li Ming lived in Shijiazhuang?,2. What subject does Li Ming
10、 like best?,3. Has Li Ming visited Canada?,4. What subject is Wang Mei not good at?,physics,Listen and catch the answers:,Read quickly and answer the questions: Whats the main idea(主要意思) of each paragraph?,Introduce himself and his city.,his favourite subject,How does he learn English?,a new subject
11、, physics,Read carefully and answer the questions:Where is Shijiazhuang?What does Li Ming think of it?3. Which grade is Li Ming in?4. Why does Li Ming like English best?,Read carefully and answer the questions:1. Li Ming likes reading, doesnt he? What does he often do?2. Does he have a few Canadian
12、friends? What do they often do?3. Who helped him with his English?4. Wang Mei isnt good at physics, is she? Who can help her?,Yes, he does.是的，他喜欢。,No, she isnt.是的，她不擅长,Language notes:,4. borrow from ,6. forget to do sth. forget doing sth. He forgot to turn out the light yesterday evening. He forgot
13、turning out the light.,2. sometime in the future,1. a lot = very much,3. such as,5. a few + 可数名词的复数形式,some,Useful sentences:I have lived here for fourteen years.Of all the subjects, I like English best, because its so useful and interesting.Its very important for us to learn it well.We often talk and write e-mails in English.,下课 再见,