高一英語(yǔ)ALessoninaLab課件

1、Module 5 A Lesson in a LabGrammar倍數(shù)表達(dá)法與形容詞/副詞比較級(jí)【探究尋規(guī)】根據(jù)句后的提示, 用括號(hào)內(nèi)所給詞的適當(dāng)形式填空。The earth is forty-nine times _ (large) than the moon. (倍數(shù)表達(dá)法)Its getting _ and _ (bright)! (比較級(jí)+and+比較級(jí))_(close) you are, _(much) youll see. (the +比較級(jí)+主語(yǔ)+謂語(yǔ), the +比較級(jí)+主語(yǔ)+謂語(yǔ))Itll be a lot _ (heavy) than magnesium. (比較級(jí)+tha

2、n)largerbrighterbrighterThe closerthe moreheavier【語(yǔ)法精點(diǎn)】 一、基礎(chǔ)點(diǎn)撥 1. 比較級(jí)的基本用法。 主要用于兩者比較, 主要包括原級(jí)比較和比較級(jí)。 (1)原級(jí)比較：表示兩者程度相同。用句型as+形容詞/副詞+as表示; 否定形式為：not(否定詞) as/so+形容詞/副詞+as。例如： Cast iron is almost as useful as steel. 鑄鐵差不多與鋼一樣有用。(as+形容詞+as) She has not been quite so unlucky as she pretends. 她還沒(méi)有像她裝出的那樣不幸。

3、(否定詞+as/so+形容詞+as) He has learned as many English words as his brother (has). 他已學(xué)了和他哥哥一樣多的英語(yǔ)單詞。(as many/much + 名詞 + as) He is as kind a person as his father. 他和他爸爸一樣都是善良的人。(as +形容詞+ a/an +單數(shù)名詞+as) (2)比較級(jí)?！靶稳菰~/副詞比較級(jí)+than”表示“比更”。例如： They worked even harder than they promised. 他們工作得比他們?cè)手Z的還要賣力。 This str

4、eet is narrower than that one. 這條街比那條街窄?！久麕燑c(diǎn)津】(1)使用比較等級(jí)要注意合乎邏輯。例如：我的電腦比她的貴。誤：My computer is more expensive than her. 正：My computer is more expensive than hers. 分析：從邏輯上說(shuō), 應(yīng)該是my computer 與 her computer 作比較, 而不是my computer 與her 比較。句中的hers=her computer。上海的人口比北京的人口要多。誤：The population of Shanghai is large

5、r than Beijing. 正：The population of Shanghai is larger than that of Beijing. 分析：從邏輯上說(shuō), 應(yīng)該是上海人口和北京人口作比較, 而不是上海人口和北京這座城市比較。population為不可數(shù)名詞, 故可用that替代。(2)雙方比較表示一方超過(guò)另一方的程度或數(shù)量時(shí), 可在比較級(jí)前加上副詞修飾語(yǔ)。常見(jiàn)的有：even, still, rather, any(疑問(wèn)句、否定句或條件狀語(yǔ)從句), no, far, a little, a bit, a lot, a great deal 等。例如：She felt a gre

6、at deal more comfortable. 她感覺(jué)舒服多了。He works hard, but his wife works still harder/harder still. 他工作努力, 但他的妻子工作更努力。 2. 倍數(shù)表達(dá)法。規(guī)則說(shuō)明例句倍數(shù)+as+形容詞/副詞原級(jí)+asAsia is four times as large as Europe. 亞洲是歐洲的四倍大。倍數(shù)+形容詞/副詞比較級(jí)+thanOur school is twice bigger than yours. 我們學(xué)校是你們學(xué)校的兩倍大。倍數(shù)+the+名詞(size, height, length, wid

7、th, etc. )+ofThe new building is three times the height of the old one. 這座新樓是那座舊樓的三倍高。倍數(shù)+as much/many +名詞+asHe has got three times as many books as his sister. 他擁有的書的數(shù)量是他妹妹的三倍。 【名師點(diǎn)津】?jī)杀兑胻wice, 不能用two times; 三倍及三倍以上才用three (. . . ) times。 3. 比較級(jí)中的特殊結(jié)構(gòu)。 (1)比較級(jí)+and+比較級(jí)“越來(lái)越” When winter is coming, it g

8、ets colder and colder. 冬天來(lái)了, 天越來(lái)越冷了。 My hometown is getting more and more beautiful. 我的家鄉(xiāng)正變得越來(lái)越美麗。 He became less and less satisfied with the football teams performance. 他對(duì)足球隊(duì)的表現(xiàn)越來(lái)越不滿意了。 (2)The+比較級(jí)(+主語(yǔ)+謂語(yǔ)), the+比較級(jí)(+主語(yǔ)+謂語(yǔ))“越越” The busier he is, the happier he feels. 他越忙就越高興。 The sooner, the better.

9、越快越好。 (3)the+比較級(jí)+of the two“兩個(gè)中比較的” This watch is the cheaper of the two. 這塊手表是兩塊中比較便宜的。 The younger of the two is my cousin. 兩人中較年輕的那個(gè)是我表弟。 二、難點(diǎn)突破 1. 用比較級(jí)形式表達(dá)最高級(jí)含義的幾種情況。 (1)否定詞(not, no, never等)在比較句型中使用時(shí), 表示最高級(jí)含義。 I have never heard a more interesting story. 我從來(lái)沒(méi)有聽(tīng)過(guò)比這更有趣的故事。 I cant agree with you mo

10、re. 我再同意你不過(guò)了(我非常同意你)。 No other building is as grand as the new hotel. 新建的旅館是最豪華的。 (2)在比較狀語(yǔ)中用any, other, else等詞時(shí), 比較級(jí)形式表示最高級(jí)含義。 Tom cared more for money than for anything else. 湯姆最喜歡錢。 Li Ming is much cleverer than any other student in their class. 李明是他們班里最聰明的學(xué)生。(李明屬于他們班) China is larger than any cou

11、ntry in Africa. 中國(guó)比非洲的任何國(guó)家都大。(中國(guó)不屬于非洲) 2. “no+比較級(jí)+than”與“not +比較級(jí)+than”。no+比較級(jí)+than“和一樣不”表示對(duì)兩個(gè)比較對(duì)象都進(jìn)行否定 (可由neither. . . nor. . . 結(jié)構(gòu)來(lái)改寫)not +比較級(jí)+than表示在程度上前者不如后者(相當(dāng)于not so/as. . . as. . . ) Im no more foolish than you. 我們倆都不傻。(相當(dāng)于Neither I nor you are foolish. ) This book is not more interesting than

12、 that one. 這本書不如那本書有趣。(相當(dāng)于This book is less interesting than that one. 或This book is not so interesting as that one. )【高考體驗(yàn)】1. (2012全國(guó)卷) The result is not very important to us, but if we do win, then so much _. A. the best B. best C. better D. the better解題關(guān)鍵：由but可知, 贏比輸好, 故用the better。思路分析：選D。句意：結(jié)果對(duì)

13、我們并不十分重要, 但假如我們真贏了, (那)就更好了。此處是贏了怎么樣和輸了怎么樣的比較, 兩種情況比較, 不能用最高級(jí), 故要在C、D兩項(xiàng)間選擇。so much the better是英語(yǔ)中的一個(gè)固定表達(dá)形式, 大多是與if從句一起出現(xiàn), 可以在口語(yǔ)中使用, 也可以在書面語(yǔ)中使用, 表示“那就更好了”。2. (2012北京高考)Many people have donated that type of blood; however, the blood bank needs _. A. some B. less C. much D. more解題關(guān)鍵：前后句之間為轉(zhuǎn)折關(guān)系。思路分析：選D。

14、句意：許多人捐獻(xiàn)了那種血型的血; 但是, 血庫(kù)需要更多(那樣的血)。however之后的內(nèi)容應(yīng)與前面的many呼應(yīng), 要么表示所需血量較少, 要么表示需要更多的這種血液, 即much的比較級(jí)more, 故只有D項(xiàng)符合句意。3. (4. (5. (6. (易錯(cuò)誤區(qū):倍數(shù)表達(dá)法中一定要把倍數(shù)放在前面, 然后再出現(xiàn)連詞as及形容詞等。本題A項(xiàng)看似正確, 但倍數(shù)和as的位置顛倒。7. (解題關(guān)鍵：由than可知本題考查的是形容詞的比較級(jí)及其修飾語(yǔ)。思路分析：選A。句意：我得說(shuō), 這部電影一點(diǎn)都沒(méi)趣。為什么? 這可比我看過(guò)的電影有趣多了。程度副詞可修飾形容詞比較級(jí), 放于比較級(jí)前。根據(jù)應(yīng)答者用“Why?

15、 ”進(jìn)行反問(wèn), 可知選A。8. (2009四川高考) My uncles house in the downtown area is much smaller than ours, but it is twice _ expensive. A. as B. so C. too D. very思路分析：選A。該題采用了“倍數(shù)+as+adj. /adv. +as”這一結(jié)構(gòu), 后面省略了成分, 所以答案為A項(xiàng)。 . 單項(xiàng)填空1. (2013延安高一檢測(cè))Youd better go there by train. The train ticket is _ the airplane ticket.

16、A. as cheap three times asB. as three times cheap asC. three times cheaper thanD. cheaper three times than【解析】選C?？疾楸稊?shù)表達(dá)法。句意：你最好乘火車去那里?；疖嚻北蕊w機(jī)票便宜兩倍。常用的倍數(shù)表達(dá)法的三種形式中均應(yīng)把倍數(shù)置于最前面, 故選C。2. (2013徐州高一檢測(cè))What I want to know is how to do the job better with _ time and _ people. A. less; less B. fewer; fewerC. few

17、er; less D. less; fewer【解析】選D。句意：我想知道的是如何用更少的時(shí)間和更少的人來(lái)把這項(xiàng)工作做得更好。本題的關(guān)鍵詞是better, 故下面兩個(gè)空也應(yīng)填比較級(jí)形式。time為不可數(shù)名詞, 故應(yīng)用little修飾, 而little的比較級(jí)為less; people為可數(shù)名詞, 故應(yīng)用few的比較級(jí)修飾, 故選D。3. (2013郴州高一檢測(cè))Alan is a careful driver, but he drives _ of my friends. A. more carefully B. the most carefully C. less carefully D.

18、the least carefully【解析】選D。句意：Alan是一位謹(jǐn)慎的司機(jī), 但是他是我的朋友中開(kāi)車最粗心的了。由于Alan是我的朋友中的一員, 故用carefully的最高級(jí)形式。4. (2013郴州高一檢測(cè))The information on the Internet gets around much more rapidly than _ in the newspaper. A. it B. those C. one D. that【解析】選D。句意：網(wǎng)上的信息比報(bào)紙上的信息傳播得快得多。根據(jù)句意, 前后比較的內(nèi)容是“information”, 各選項(xiàng)指代不同的內(nèi)容, A項(xiàng)it

19、指代同類同物, B、C、D三項(xiàng)所指代的是同類不同物, (即those指代名詞復(fù)數(shù), one指代a/an+單數(shù)可數(shù)名詞, 而that指代不可數(shù)名詞或the+單數(shù)可數(shù)名詞。)因?yàn)閕nformation是不可數(shù)名詞, 故B、C兩項(xiàng)排除, 因此選D。5. China is larger than _ in population in Asia. A. any country B. any other countryC. any other countries D. other country【解析】選B。句意：中國(guó)人口比亞洲的任何一個(gè)國(guó)家的人口都要多。此處是比較級(jí)表示最高級(jí)的用法, 該句型結(jié)構(gòu)：形容詞

20、或副詞的比較級(jí)+than+any other+單數(shù)可數(shù)名詞, 故選B。6. Do you need any help, Lucy? Yes, the job is _ I could do myself. A. less than B. more thanC. no more than D. not more than【解析】選B。句意：露西, 你需要幫助嗎? 是的, 我自己做不了這份工作。做此題要抓的關(guān)鍵詞是Yes, 由于答話者對(duì)問(wèn)話者的“你需要幫助嗎? ”作了肯定回答, 說(shuō)明答話者獨(dú)自完成工作有困難, 故填more than, 即“超出”之意。7. Of the two coats, Id

21、 choose the _ one to spare some money for a book. A. cheapest B. cheaperC. more expensive D. most expensive【解析】選B。句意：這兩件上衣中, 我愿意選擇較便宜的那件以省出錢來(lái)買一本書。關(guān)鍵詞是句中的two, 因是兩者比較, 故用比較級(jí), 可將答案鎖定在B和C兩項(xiàng)之間; 再根據(jù)句意, 排除C。8. There is an old proverb, “Love me, love my dog. ” But there is _ wisdom in this: “Love me, love m

22、y book. ”A. some B. much C. more D. most【解析】選C?？疾楸容^級(jí)。該句中既沒(méi)有顯示比較級(jí)的關(guān)鍵詞, 也沒(méi)有暗示用比較級(jí)的than。而是將“Love me, love my dog. ”與“Love me, love my book. ”兩句進(jìn)行比較, 根據(jù)這兩句話的內(nèi)容確定哪句話更wisdom。故選C項(xiàng)。9. The melon the Smiths served at dinner would have tasted _ if it had been put in the fridge for a little while. A. good B. be

23、tter C. best D. well【解析】選B。句意：史密斯家晚餐時(shí)上的甜瓜若能放入冰箱中冷凍一下味道會(huì)更好些。題目中將“放入冰箱中冷凍”與“不放入冰箱中冷凍”作比較, 故用比較級(jí)。10. Speaking of all the songs he has written, I think this is probably his _ one. A. better-known B. well-knownC. best-known D. most-known【解析】選C。句意：談及他所寫的所有歌曲, 我認(rèn)為這首大概是他的力鼎之作。因?yàn)楸容^范圍是他所寫的所有歌, 故用最高級(jí)。(best-kno

24、wn的原級(jí)是well-known而比較級(jí)是better-known。)11. The new group of students is better-behaved than the other group who stayed here _. A. early B. earlierC. earliest D. the earliest【解析】選B。句意：新來(lái)的這群學(xué)生比早些時(shí)候待在這兒的那些學(xué)生表現(xiàn)得更好些。該題的關(guān)鍵詞是new, 即把“新來(lái)的學(xué)生”與“早些時(shí)候待在這兒的學(xué)生”進(jìn)行比較。 12. After two years research, we now have a _ better

25、 understanding of the disease. A. very B. far C. fairly D. quite【解析】選B?？疾楸容^級(jí)前的副詞修飾語(yǔ)。句意：經(jīng)過(guò)兩年的研究, 我們現(xiàn)在對(duì)這種疾病有了一個(gè)更好的理解。這四個(gè)副詞中, 通常只有far可用于修飾比較級(jí)。quite有時(shí)也可用于修飾better, 但它只用于表示“身體康復(fù)”, 不用于其他意義。13. Work gets done _ when people do it together, and the rewards are higher too. A. easily B. very easyC. more easily

26、 D. easier 【解析】選C。句意：當(dāng)大家齊心協(xié)力做事時(shí), 工作做起來(lái)會(huì)更容易, 而報(bào)酬也會(huì)更高。根據(jù)題意可知, 說(shuō)話者是將 when people do it together 和 when people dont do it together 這兩種情況比較, 故選比較級(jí)。注意不要選 D, 因?yàn)榇祟}是要用副詞修飾動(dòng)詞, 不能用形容詞。另外, 根據(jù)句末的 higher too 也可知道此題是考查比較級(jí)。. 用所給詞的適當(dāng)形式填空1. Bob is _ (young) than Fred but _ (tall) than Fred. 2. The orange is a little_ (big) than the apple, but much _ (small) than the watermelon. 3. Her mother is getting _ and _ (fat). 4. I think its too expensive. Id like a _ (cheap) one. youngertaller biggersmallerfatterfattercheaper5. Your class