課堂設(shè)計(jì)2015-2016學(xué)年高中英語 Unit4 Period3 Language Points學(xué)案 北師大版必修2

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1、Period 3Language Points1Compared to 20 years ago how do you think technology will change our life?_2Do you feel pessimistic or optimistic about the future of the Internet? Why? _1In the last thirty years, the Internet has_grown rapidly.三十年來，因特網(wǎng)迅猛地發(fā)展著。歸納時(shí)間狀語 in the last/past thirty years，通常與現(xiàn)在完成時(shí)連用。另

2、外，recently, lately, so far，until now，up to now，by now, (ever) since等也是現(xiàn)在完成時(shí)的標(biāo)志性時(shí)間狀語。運(yùn)用(1)Up to now, the program _ thousands of children who would otherwise have died.Awould save BsavesChad saved Dhas saved(2)Progress _ so far very good and we are sure that the work will be finished on time.Awas Bhad

3、 beenChas been Dwill be(3)Her sister left home in 1998，and _ since.Ahad not been heard ofBhas not been heard ofChad not heard ofDhas not heard of2In the future, terrorists may “attack”the worlds computers, cause chaos, and make planes and trains crash.將來，網(wǎng)絡(luò)恐怖分子可能會(huì)“攻擊”全世界的計(jì)算機(jī)，制造混亂，引發(fā)飛機(jī)和火車事故。歸納attack

4、vt. & n攻擊，襲擊；抨擊，責(zé)難；(疾病)侵襲attacker n襲擊者；攻擊者attack sb.with sth.用某物襲擊某人attack sb.for sth.因某事抨擊某人carry out/make an attack on.對(duì)發(fā)起攻擊be/come under attack from.遭到的攻擊，抨擊運(yùn)用(1)He was arrested for _ his brother _ a knife.他因用刀攻擊他哥哥而被捕。(2)Newspapers _ the President _ failing to cut taxes.報(bào)紙抨擊總統(tǒng)未能成功減稅。(3)The gover

5、nment _ from all sides _ cutting education spending.政府因?yàn)橄鳒p教育開支而受到各方面的強(qiáng)烈批評(píng)。3Already, users can buy books, find out about holiday offers,_book tickets, and get all sorts of information from the Internet.現(xiàn)在，用戶已經(jīng)可以從網(wǎng)上購書，查找節(jié)日特惠，訂票，并可以從網(wǎng)上獲取各種各樣的信息。歸納offer vt.提出，提供；出價(jià)，開價(jià)；n.主動(dòng)提議，建議(of sth./to do sth.)；出價(jià)，報(bào)價(jià)

6、(for sth.)；(短期的)削價(jià)，特價(jià)offeraccept/take an offer接受提議，建議turn down/decline/reject an offer拒絕提議make sb.an offer for/on sth.向某人開的價(jià)小貼士offer后面不可接that從句，但可以引出直接引語。 “Ill do the cooking，” he offered.他主動(dòng)提議：“我來做飯?！边\(yùn)用(1)He _ a better position.他向我提供了一個(gè)更好的職位。(2)Someone _ the bike.有人向我出價(jià)300美元買這輛自行車。(3)The kids _ the

7、 dishes.孩子們主動(dòng)要求洗盤子。(4)If you like I can do some shopping for you.Thats a very kind _.Aoffer BserviceCpoint Dsuggestion(5)The boy _ his fathers offer of help, for he was trying to be independent.Atook BacceptedCturned down Dturned away4. Some experts see our future in virtual realitythe use of comput

8、ers with sounds and pictures that make you feel as_if you are in a real situation.有些專家看到了我們?cè)谔摂M現(xiàn)實(shí)中的未來是計(jì)算機(jī)通過聲音和圖像模擬現(xiàn)實(shí)，以使人感到仿佛置身于一個(gè)真實(shí)的空間。歸納as ifas though好像，仿佛(1)在look, seem等系動(dòng)詞后引導(dǎo)表語從句，還可引導(dǎo)方式狀語從句，從句常用虛擬語氣，表示與事實(shí)相反。當(dāng)表示與現(xiàn)在事實(shí)相反的情況時(shí)，從句用一般過去時(shí)；當(dāng)表示與過去事實(shí)相反的情況時(shí)，從句用過去完成時(shí)。(2)用于省略句中，構(gòu)成“as if 名詞/不定式/形容詞(短語)/介詞短語/分詞”結(jié)

9、構(gòu)。小貼士 注意as if/though和even if/though的區(qū)別，后者表示“即使，盡管”，引導(dǎo)讓步狀語從句。運(yùn)用 (1)The young man with long hair walks as if he _ a girl.留長發(fā)的那個(gè)小伙子走起路來就像個(gè)小姑娘。(2)The injured man acted as if nothing _.那個(gè)受傷的男子行動(dòng)起來仿佛什么事也沒有一樣。(3)The man we followed suddenly stopped and looked as if _ whether he was going in the right direc

10、tion.Aseeing Bhaving seenCto have seen Dto see(4)_ you explained the reason to him, he would not believe you. A. Even if B. As ifC. While D. AsPeriod 3Language Points課前準(zhǔn)備區(qū)1We have more cars and computers which are more and more popular.We can go shopping and book tickets online. We neednt carry cash

11、 and use credit cards. Instead of going to the bank we can use a computer and a telephone to pay for bills.2Im optimistic about the future of the Internet, because the Net has become a part of our life. We do many things on it, such as shopping, study, chat，etc.課堂活動(dòng)區(qū)1(1)D本題考查時(shí)態(tài)。up to now表示“直到現(xiàn)在”，句中謂

12、語動(dòng)詞一般用現(xiàn)在完成時(shí)。(2)C本題考查時(shí)態(tài)。句意為：到目前為止，一切進(jìn)展良好，我們確信這工作能夠按時(shí)完成。so far (by now)是現(xiàn)在完成時(shí)的標(biāo)志性時(shí)間狀語，故C項(xiàng)正確。(3)B句意為：他妹妹自1998年離家，自此杳無音信。since 此處是副詞，表示“從那以來”，通常與現(xiàn)在完成時(shí)連用。同時(shí)her sister與hear of是動(dòng)賓關(guān)系，應(yīng)用被動(dòng)語態(tài)。故選B項(xiàng)。2(1)attacking；with(2)attacked；for(3)has come under attack；for3(1)offered me(2)offered me $300 for(3)offered to do

13、(4)A本題考查名詞辨析。對(duì)方主動(dòng)提供幫助，應(yīng)是offer。而service服務(wù)(一般是指有償服務(wù))，不符合句意。(5)C根據(jù)后一分句可知，這位小男孩盡量保持自立、自主的生活，所以他拒絕了父親主動(dòng)提出的幫助。turn down 拒絕，符合題意。4. (1)were(2)had happened(3)D考查as if引導(dǎo)的表語從句中的省略用法。此句中從句與主句的主語一致，從句中主語及動(dòng)詞be可省略。句意為：我們跟蹤的那個(gè)男人突然停下來，看上去好像是在判斷是否走對(duì)了方向。他停下來的目的好像是為了辨別是否走對(duì)了方向，故用動(dòng)詞不定式。再給合題意可知選D項(xiàng)。(4)A句意為：即使你向他解釋了原因，他也不會(huì)相信你。even if即使，盡管，符合題意。3