《Lesson16UnitReview》課文講解和練習(xí)

1、lesson 16 unit review語法專項(xiàng)講解語法專講現(xiàn)在完成時(shí)：1.現(xiàn)在完成時(shí)的基本概念和用法：現(xiàn)在完成時(shí)由have (has)十動(dòng)詞的過去分詞構(gòu)成。規(guī)則動(dòng)詞的過去分詞的構(gòu)成與動(dòng)詞過去式相同，不規(guī)則動(dòng)詞的過去分詞各不相同，需個(gè)別記憶。(1)現(xiàn)在完成時(shí)表示過去所發(fā)生的動(dòng)作對現(xiàn)在的影響或產(chǎn)生的結(jié)果，常與 just (剛剛)，already (已經(jīng))， ever (曾經(jīng))，never (從來)，yet (尚，還)等表示時(shí)間的副詞搭配使用。have you ever seen the film?你看過這部電影嗎？she has already bought a lot of things.她

2、已經(jīng)買了許多東西。(2)表示一個(gè)從過去某個(gè)時(shí)間開始，延續(xù)到現(xiàn)在并可能持續(xù)下去的動(dòng)作，常與表示段時(shí)間的時(shí)間狀語連用，這樣的時(shí)間常用since或for來構(gòu)成。since后面加時(shí)間點(diǎn)或從句(從句的時(shí)態(tài)常用一般過去時(shí)) 段：he has worked here for 15 years.他在這里工作了 15年了。i have studied english since i came here.自從我來這里，一直在學(xué)英語?？隙ㄊ剑穸ㄊ?，疑問式如下：for后加時(shí)間i hei(we, you, they ) have read it.(she) has read it.(we, you, they ) h

3、ave not read it.hehave ihas he(she) has not read it.(we, you, they ) read it?(she) read it?(3)某些非延續(xù)性動(dòng)詞即動(dòng)作開始便終止的動(dòng)詞，在現(xiàn)在完成時(shí)中不能與表示一段時(shí)間的狀語搭配。例如下面這些動(dòng)詞屬于非延續(xù)性動(dòng)詞，并非不能用于現(xiàn)在完成時(shí)，而是不能接由 arrive, join, leave, go, finish, buy, come lend, borrow, marry,for 或since 引導(dǎo)的時(shí)間狀語。die, 例如：he has come here for two hours.he has

4、been here for two hours.(x)他來了兩個(gè)小時(shí)了。(4) have (has) gone to表示去了某地但還沒有回來。have (has) been to表示去過某地并且已經(jīng)回來。he has gone to shanghai.他到上海去了。he has been to shanghai.他去過上海。2.現(xiàn)在完成時(shí)與一般過去時(shí)的區(qū)別：現(xiàn)在完成時(shí)表示過去發(fā)生的某一動(dòng)作對現(xiàn)在造成的影響或結(jié)果，強(qiáng)調(diào)的是現(xiàn)在的情況，所以它不能和表示過去的時(shí)間狀語連用。而一般過去時(shí)只單純表示過去的動(dòng)作或狀態(tài)，和目前情況無關(guān)，它可以和表示過去的時(shí)間狀語，如 yesterday, last year

5、, just now it snowed heavily yesterday.昨天雪下得很大。it has snowed for three days.已經(jīng)下了三天雪了?，F(xiàn)在完成時(shí)專項(xiàng)練習(xí)等連用。試比較:針對練習(xí)基礎(chǔ)過關(guān)課堂鞏固，基礎(chǔ)闖關(guān)( a.c.( a.單項(xiàng)選擇。)1、both his knew b. must know)2、he has alreadyparents lookhave knownd. will knowbeenb. nevertosad . maybe theyshanghai, has he ?c.everd. stillwhats happened to him.（）

6、7.we_xiaoli since shewasalittlea. knowb.had knownc. haveknownd. knewgirl.（）3、have you metmr.li?a.justb. agoc. befored. a moment ago（）4、the famous writer _one new book in the past two year.a.is writingb.waswritingc.wroted.haswritten（）5、一 our countrya lot so far.yes. i hope it will be even _.a.has cha

7、nged ; wellb. changed ; goodc.has changed ; betterd. changed ; better（）6、zhao lanalreadyin this school for two years.a.was ; studyingb. will ; studyc.has ; studiedd. are ; studying（ ）8、harry potter is a very nice film .i it twice.a. will see b. have seen c. saw d. see（）9. thesefarmershavebeen to the

8、unitedstates.really ? when _ a. willtheygothere ?b. did they goc. do theygod. have they gone（）10.youyourhomework yet?yes . ia. did; do; finishedit a moment ago. b. have; done; finishedc. have; done; haved. will; do; finishfinished拓展提高課后拓展，提升能力i .（中考高頻題）單項(xiàng)選擇（）1.（2005年重慶）nowadays science fiction isn t

9、 as as cartoons among teenagers.a. popular b. more popular c. less popular d. the most popularever（）2.（2006 年福州） we are glad to see that shanghai is developing these years thanbefore.a. quicklyb. less quicklyc. more quickly d. the most quicklyii.（創(chuàng)新題）句型轉(zhuǎn)換填空。1、he has never surfed,? （改成反意疑問句）2、they ha

10、ve been here since 2000.（對劃線部分提問）have they been here?3、 the old man last year. he for a year. （die）（動(dòng)詞填空）4、this factory opened twenty years ago.（同義句轉(zhuǎn)換 ）this factory for twenty years.5、miss gao left an hour ago.（同義句轉(zhuǎn)換）miss gaoan hour ago.6、her mother has been a party member for three years .（同義句）her

11、mother the party three years.7、the green family moved to france two years ago.（同義句轉(zhuǎn)換）two years the green family moved to france.8、 the bus has arrived here. it arrived ten minutes ago.（把兩個(gè)句子合并成個(gè)句子 ）iii.（興趣題）選詞填空。請從方框內(nèi)選擇適當(dāng)?shù)脑~語完成這封信。writing, talking,sitting ,playing,swimming , flying,sunny,studying,dra

12、wing, havingdear bob,my name is rich .i m fourteen years old .i m（1）in a middle school .my school is nice andclean. there are 30 students in my class .it s（2） today . my classmates and i are（3） a good t ime on the beach .it s a nice plac e .the water is blue and clear . many birds are（4） over the se

13、a .many people are （5）. some boys are（6） football . some people are（7）on the beach . a girl is（8） pictures on a chair .another girl is （9）photos .i m （10）to you ! what are you doing ? i hope you can write to me soon .best wishes!rich12345678910iv. （綜合題）we are all busy talking about and using the int

14、ernet, but how many of us know the history of the internet?many people are surprised when they find that the internet was set up in the 1960s. at that time ,computers were large and expensive. computer networks（ 網(wǎng)絡(luò) ） didnt work well. if one computer in the networks broke down, then the whole network

15、 stopped. so a new network system （ 系統(tǒng) ） had to be set up. it should be good enough to be used by many different computers. if part of the network was not working, information（ 信息 ）could be sent through another part. in this way computer network system would keep on working all the time.at first,the

16、 internet was only used by the goverment（政府 ）,but,in the early 1970s, university（大學(xué)）,hospitals and banks were allowed （ ） to use it too. howerver,computers were still expensive and the internet was difficult to becomecheaper and easier to use. scientists had also developed software（ 軟 件） that made s

17、urfing（ 瀏覽） the internet more convenient（ 方便 ）.today it is easy to get-on-line and it is said that millions of people use the internet every day.sending e-mail is more and more popular among students.the internet has now become one of the most important parts of peoples life.（ ） 1.the internet has a

18、 history of years.a.about 40 b.less than 30 c.more than 45 d.nearly 35（ ） 2.scientists set up a new network system to .a. make the computer cheaper. b.use the computer widely c.make the computer go well d.develop new softwares（ ） 3.the internet was widely used in the .a.1960s b.1970s c.1980s d.1990s

19、（ ） 4.the underlined words get-on-line in chinese means a. 上機(jī) b. 上網(wǎng) c. 接線 d. 買電腦（ ） 5.which of the following is not ture?a.in the 1960s computer networks system went wrong easily.b.computers are much cheaper than before.c.today the internet is used everywhere.d.people had enough softwares to get on-

20、line fifteen years ago激活潛能 圍繞主題，實(shí)戰(zhàn)應(yīng)用v. （開放題）漢譯英。1、他昨天收到一封信。he a letter .2、我父親以前到過長城。my father to the great wall.3、她還沒有看過那部新電影。she this new movie yet.4、她去過上海嗎。she to shanghai?5、他這些天上哪兒去了？where he in these days?vi. 探究題 單項(xiàng)選擇（ ）1.miss green isnt in the office . she to the library.a.hasgone b. wentc.willgod.hasbeen()2.myparents_shandongfor tenyears.a.havebeeninb. havebeen toc.havegonetod. havebeen( )3.the students have cleaned the classroom,?a. so theyb. don t theyc. have theyd. h