(完整版)北京四中高考英語專題9定語從句(學(xué)生版)

1、專題九定語從句13?)J' 一"Ji， 一.一皿一,一.，一，一”,.一“ ,.一 5 ，- . - “ ,.j“一定語從句是高中英語三大類從句中最難的一類，其難點(diǎn)主要在于很多學(xué)生在學(xué)習(xí)時(shí)分不清先行詞，不能正確使用關(guān)系代詞、關(guān)系副詞。因此在學(xué)習(xí)定語從句時(shí)，務(wù)必搞清定語從句的概念、關(guān)系詞的正確選擇和使用情 況等。2018年高考定語從句的考一查還將是對關(guān)系代詞和關(guān)系副詞的考查。對定語從句的考查仍將不會單純考查 其語法結(jié)構(gòu)，而是將其融入一定的語境中來考查考生的實(shí)際綜合運(yùn)用能力?？键c(diǎn)定位定語從句是高考的熱點(diǎn)， 對于定語從句考綱要求掌握以下內(nèi)容：1.引導(dǎo)限制性定語從句的關(guān)系詞； 2.引

2、導(dǎo)非限制性病語從句的關(guān)系詞；3.限制性與非限制性定語從句的區(qū)別； 4.介詞+關(guān)系代詞的用法；5.不定彳t詞/數(shù) 詞+of which/whom引導(dǎo)的非限制性定語從句及其該結(jié)構(gòu)與并列句的判斷；6.關(guān)系詞之間的異同現(xiàn)象及選用?？键c(diǎn)1 :關(guān)系代詞一覽表關(guān)系詞先行詞從句成分例句備注關(guān)系代詞who人主語Do you know the man who is talking with your mother?whom, which 和that在從 句中做賓語 時(shí)，常可以省 略，但介詞提 前時(shí)后面關(guān) 系代詞不能 省略，也/、可 以用thatwhom人賓語Mr. Smith is the person with

3、 whom I am workingThe boy (whom) she loved died in the war.whose人，物定語I like those books whose topics are about history.The boy whose father works abroad is my desk mate.that人，物主語賓語A plane is a machine that can fly.She is the pop star (that) I want to see very much.which物主語賓語The book (which) I gave y

4、ou was worth $10.The picture which was about the accident was terrible.as人，物主語賓語He is such a person as is respected by all of us.This is the same pen as I lost yesterday.as做賓式-般不省略when時(shí)間時(shí)間狀語I will never forget the day when we met there.可用 onwhich關(guān)系副詞where地點(diǎn)地點(diǎn)狀語This is the house where I was born.可用 i

5、n whichwhy原因原因狀語I can ' t imagine the reason why he turne down my offer.6可用 forwhich【典例】In 1963 the UN set up the World Food Programme, one of purposes is to relieve worldwide starvation.A. whichB. its C. whoseD. whom【答案】C【解析】考查定語從句。 先行詞the World Food Programme在非限制性定語從句中作定語，修飾名詞purposes,所以用關(guān)系代詞

6、whose引導(dǎo)，故選C項(xiàng)。句意：1963年，聯(lián)合國成立了世界糧食計(jì)劃署，其目的之一就是緩 解世界范圍內(nèi)的饑荒?！镜淅緾hina Today attracts a worldwide readership,shows that more and more people all over the world want to learn about China.A. whoB. whomC. thatD. which【答案】D【解析】考查非限制性定語從句。根據(jù)句式結(jié)構(gòu)來看出現(xiàn)了逗號，說明這是一個(gè)非限制性定語從句。首先that不能引導(dǎo)非限制性定語從句，who在引導(dǎo)非限制性定語從句的時(shí)候通常在從句中做

7、主語和賓語，指人，而whom也指人，卻只能做賓語。Which引導(dǎo)非限制性定語從句通常在從句中做主語或者賓語。關(guān)系詞代指前面的中國日報(bào)，在定語從句中做主語。該句意思為：中國日報(bào)有著全球的讀者群，這說明全球越來越多的人想要了解中國。故選D考點(diǎn)2： that 與 which ， who， whom 的用法區(qū)別that和which的用法區(qū)別：在定語從句中，關(guān)系代詞which 和 that 都可指物，一般情況下，可以互換使用。但在下列情況下值得注意：A. 只能用 that 而不能用which 的情形( 1) 當(dāng)先行詞為：all, little, few, much, none, 及 some-, any

8、-, no-, every-, 與 thing 所組成的復(fù)合單詞時(shí)，只能用that。如：There is nothing that will stop us making progress. 沒有事情會阻止我們進(jìn)步。(2)當(dāng)先行詞前面有 only, some, any, no, every, little, few, much, all, very 等形容詞修飾時(shí)，只能用 that。如：This is the only problem that we can這是我們不能解決的唯一的一個(gè)問題。 t work out.(3)當(dāng)先行詞由形容詞的最高級或序數(shù)詞修飾時(shí)，只能用 that。如：This i

9、s the most interesting book that I have ever read. 這是我讀過的最有趣的書。(4)當(dāng)先行詞同時(shí)包括人和物時(shí)，只能用 that。如：Luxun and his works that we are familiar with are considered great.人們認(rèn)為我們所熟識的魯迅及其作品都很偉大。(5)當(dāng)先行詞在定語從句中作表語時(shí)，只能用that。如：This is a book that I have been looking for since last week. 這就是那本自上周以來我一直在尋找的書。(6)當(dāng)主句是以 which

10、開頭的特殊疑問句時(shí)，只能用 that。如：Which is the picture that you drew yesterday? 你昨天畫的那張畫是哪一張？B.只能用which而不能用that的情形( 1)當(dāng)非限制性定語從句中的先行詞指物時(shí)，只能用which 。如：The pencil-case, which I bought last week, is missing. 那個(gè)鉛筆盒，我上周買的，現(xiàn)在不見了。( 2)關(guān)系代詞前面有介詞時(shí)，只能用which 。如：The tree under which we used to take a rest has been cut down. 我們

11、過去常在下面休息的那棵樹已砍掉了。(3)先行詞為代詞that或that所修飾時(shí)，只能用 which。如：I don ' t take that which is too expensiv或不要太貴的那個(gè)。who (whom) 和 that 的用法區(qū)別詳解:在定語從句中，關(guān)系代詞who (whom) 和 that 都可指人和物，在一般情況下，可以互換使用，但在下列情況下值得注意：一、用 who (whom) 而不用 that 的情形(1) 在非限制性定語從句中的先行詞指人時(shí)，只能用who (whom) 。如：My sister, who is studying abroad, sent

12、me a beautiful present just before this Christmas. 我姐姐， 她在國外學(xué)習(xí)，就 在圣誕節(jié)前給我寄來了漂亮的禮物。(2) 當(dāng)定語從句對指人的先行詞進(jìn)行隔位修飾時(shí)，只能用who (whom) 。如：Do you know the girl in front of the blackboard who is speaking to the students? 你認(rèn)識黑板前面正在給學(xué)生們講 話的那位女孩子嗎？(3) 當(dāng)先行詞為people 和 those 時(shí)，只能用who (whom) 。如：Those who want to go there com

13、e here please. 那些想去那兒的人請來這邊。(4) 當(dāng)先行詞為 one, ones, anyone, everyone, none, all(指人) 時(shí)，只能用 who (whom)。如：Anyone who is against us is our enemy. 任何反對我們的人就是我們的敵人。(5)先行詞指人，而關(guān)系代詞在從句中作主語時(shí)，一般多用who。如：The man who came here yesterday said he would come again in a few days. 昨天來這兒的那個(gè)人說過幾天他會再 來。( 6)在there be 句型中名詞的定

14、語從句多用于who(whom) 。如：There are students in our class who/whom you have met. 我們班有些學(xué)生你沒見過。(7)當(dāng)句子中兩個(gè)指人的先行詞分別帶有兩個(gè)定語從句時(shí)，若一個(gè)定語從句的引導(dǎo)詞為that,那么，另一個(gè)定語從句的引導(dǎo)詞必定為who。如：The boy that you met just now is Li Ming s brother who just graduated from a university.剛才你看到的那個(gè)男孩是李明的剛從大學(xué)畢業(yè)的弟弟。二、用 that 而不用 who (whom) 的情形(1)當(dāng)先行詞前

15、面有形容詞的最高級或序數(shù)詞修飾時(shí)，引導(dǎo)詞只能用that。如：The tallest player that plays football for our team is from Shandong. 在為我們隊(duì)踢足球的最高哪個(gè)運(yùn)動員來自山 東。(2) 當(dāng)先行詞前面有only, some, any, no, every, little, few, much, all, very 形容詞學(xué)修飾時(shí)，引導(dǎo)詞只能用that。如：He is the only student that said“ no” 他是唯一的一個(gè)對老師說 to the teacher.“不 ”的學(xué)生(3)當(dāng)主句是以who開頭的特殊疑

16、問句時(shí)，引導(dǎo)詞只能用that。如：Who is woman that you talked with just now? 剛才跟你談話的那位婦女是誰？(4) the same as 與 the same thatthe same as所引導(dǎo)定語從句的內(nèi)容與先行詞同類而不同物；the same that表示所引導(dǎo)的從句內(nèi)容與先行詞同類同物，即：同一事物。如：She is wearing the same coat that I lost a few days ago. 她正穿著我?guī)滋烨八鶃G失的上衣。(暗含： 她偷了我的上衣)She is wearing the same coat as I lo

17、st a few days ago. 她正穿著跟我?guī)滋烨八鶃G失的上衣同樣的上衣。(暗含：她所穿的上衣不是我所丟失的那一件)考點(diǎn)3關(guān)系副詞引導(dǎo)的定語從句1、關(guān)系副詞一覽表關(guān)系副詞when時(shí)間時(shí)間狀語I will never forget the day when we met there.可用 on whichwhere地點(diǎn)地點(diǎn)狀語This is the house where I was born.可用 in whichwhy原因原因狀語I can ' t imagine the reason why he turne down my offer.d可 用 for which【典例】M

18、 ozart ' s birthplace and the house he composed The Marc Flute are both museums now.A. where B. when C. there D. which【答案】A【解析】where引導(dǎo)了定語從句，并且在定語從句中做地點(diǎn)狀語，先行詞為the house?！咎貏e提示】在英語中有幾個(gè)詞雖然不指具體的地點(diǎn)，但它們作先行詞時(shí)常用where引導(dǎo)定語從句(介詞+which )。常見的有：situation/case/point/circumstances/stage 等。 I have come to the poi

19、nt where I can我已經(jīng)到由and hffi 他的程度。 He' s got himself into a dangerous situatn where he is likely to lose control over the plane . 他發(fā)現(xiàn)他陷入了危險(xiǎn)的境地，他有可能會失去對飛機(jī)的控制?！镜淅縄t ' s helpful to put children in a situationthey can see themselves differently.A. that B. when C. which D. where【答案】D【解析】考查定語從句。先行

20、詞是a situation,指物，表示地點(diǎn)，關(guān)系詞在從句中作地點(diǎn)狀語，故用關(guān)系副詞where,選 D?？键c(diǎn)4介詞+關(guān)系代詞”以及關(guān)系副詞引導(dǎo)的定語從句1 .概述介詞+關(guān)系代詞”引導(dǎo)的定語從句多用于正式文體，使用的關(guān)系代詞一般是which , whom,它既可以引導(dǎo)限制性定語從句，又可以引導(dǎo)非限制性定語從句。常見的有以下幾種結(jié)構(gòu)：(1)介詞+關(guān)系代詞Mandela was the black lawyer to whom I went for advice. =Mandela was the black lawyer whom I went to for advice.曼德拉是我尋求幫助的一位黑

21、人律師。(2)名詞/代詞/數(shù)，+介詞+關(guān)系代詞 Last Sunday I bought some books from the bookstore , three of which were English novels . =Last Sunday I bought some books from the bookstore , of which three were English novels . 上個(gè)星期天，我從書店買回幾本書，其中三 本是英文小說。 He wrote a book, the name of which I ' ve completely forgotte他寫

22、了一本書，書名我完全給忘記了。The old man has two daughters. both of whom are doctors .那位老人有兩個(gè)女兒，她們都是醫(yī)生。(3)形容詞最高級+介詞+關(guān)系代詞China has thousands of islands, the largest of which is Taiwan .中國有成千上萬的島嶼，其中最大的是臺灣。(4)介詞+關(guān)系代詞+名詞I called him by the wrong name . for which mistake I apologized .我叫錯(cuò)了他的名字， 為此我向他表示了歉意。(不能使用whose)

23、2 .關(guān)系代詞的選擇用于“介詞+關(guān)系代詞”結(jié)構(gòu)的關(guān)系代詞指人時(shí)只能用whom ,指物時(shí)只能用 which ,即介詞+which/whom?！镜淅縔ou can only be sure of ,you have at present; you cannot be sure of something you might get in the future.A. that; what B. what;/ C. which;/ D. /; that【答案】B【解析】很明顯，第一空前沒有名詞或代詞。這是介t后的賓語從句，賓語從句中缺少have的賓語，指物，用what。第二個(gè)空前有不定代詞，我們把它代

24、入從句中，可以作get的賓語，說明是賓語從句，用關(guān)系代詞that,它在定語從句中作賓語可以省略，所以答案是B。(60分鐘)限時(shí)訓(xùn)I練I，0經(jīng)典常規(guī)題一、語法填空1 .【2017 全國卷 I Like anything, it is possible to have too much of both, 70.is not good for the health.2 .【2017 全國卷 in But Sarah, 64.has taken part in shows along with top models, wants 65. (prove) that she has brains as w

25、ell as beauty.3 .12017 浙江卷 6 月考】Pahlsson and her husband now think the ring probably got 63.(sweep) into a pile of kitchen rubbish and was spread over the garden, 64.it remained until the carrot's leafy top accidentally sprouted (生長)through it.4 .【2016 全國新課標(biāo) IBut my connection with pandas goes b

26、ack 64_ my days on a TV show in the mid-1980s,65_ I was the first Western TV reporter_66(permit) to film a special unit caring for pandas rescued fromstarvation in the wild.二、短文改錯(cuò)5 .【2017 全國卷 n 】In their spare time , they are interesting in planting vegetables in their garden , that is on the roofto

27、p of their house.6 .【2017 全國卷 in Around me in picture are the things they were very important in my life at that time:7 .【2016 四川】The dishes what I cooked were Mom ' s favoritiest高頻易錯(cuò)題一、語法填空(重慶市重點(diǎn)中學(xué)九校聯(lián)盟2018屆高三上學(xué)期第一次聯(lián)考)A humanoid robot (類人機(jī)器人)named Sophiahas made history by becoming he first robo

28、t in the world 4 (award) citizenship. Saudi Arabia(沙特阿拉伯) on Wednesday offered citizenship to the robot, designed by David Hanson. Journalist Andrew Ross made the42 (announce) at the end of an interview with Sophia.Sophia 43 (response), without missing a beat: " Iwant to thank very much the kin

29、gdom of Saudi Arabia.”“I am very 44 (pride) and honored for this unique distinction. This is historical to be the first robot in the world to be recognized with a citizenship," the robot said.The particulars of the citizenship were not discussed, and it ' s not clear 45 Sophia will have the

30、 same rights as a human Saudi Arabian citizen.46一 (discuss) the future of AI (artificial intelligence), Ross expressed concerns previously raised by Elon Musk 47 AI could be dangerous if it were to go evil and turn on humanity.48 Sophia insisted itwanted to use AI only to“ help humans live a better

31、life".Sophia tried to remove Ross(那個(gè)采訪的t己者)fears of a “ bad future, “ insisting that AI is“ desighuman 49 (value) like wisd om, kindness, compassion ” . It accused him。 ” reading too much Elon Musk,“ and said, "don' t worry, if you ' re nice to me, I ' ll be nice to you. Tratpi

32、misyatemsmart input(河南省百校聯(lián)盟 2017 屆高三 3 月聯(lián)考)Last month, I gave some of my clothes to a girl who needed it because her parents didn't have money to buy her newly clothes. In school, this girl was the victim of bullying because of the clothes that she wears. So I went home and was told mom that I&#

33、39;d like collect something for her. Knew what she suffered in the school broke my heart. Sometimes young people are so mean to others which don't have the money to buy some expensive thing. This has to change because it is not clothes or shoes that makes a person. It is what we have in our hear

34、t but our soul that matters.、語法填空(河南省中原名校2018 屆高三第二次質(zhì)量檢測)When you are thirsty, you can drink some green tea. It tastesgood and it ' s very healthy. The Chinese1 (know)about the benefits of green tea since ancient times, and they use 42 to treat everything from headaches to depression. They have

35、43 (actual)been using green tea as a medicine for over 4,000 years.Nowadays, there is scientific evidence of the health benefits of green tea. According to one study 44 (publish)in a cancer research journal, drinking green tea 45 (reduce)the risk of some types of cancer in Chinese men and women 46n

36、nearly sixty percent. USA researchers have also found that green tea may prevent the 47 (grow)of cancer cells. There is also new evidence 48 green tea can help to destroy bacteria in our bodies. It is especially effective at getting rid of the bacteria on your 49 (tooth)and keep them healthy!Accordi

37、ng to the Chinese proverb,50" It is(good)to go without food for three days, than without tea forone. " So, in brief, you should definitely try a cup of green tea. It seems that it can only do you good.短文改錯(cuò)(四川省南充市 2018 屆高三第一次適應(yīng)性考試)The environment pollution was more and more serious today.We

38、 have no dean Water to drink it because of water pollution. And when trees cut down, some animals disappear.s time for us tThere is more and more dirty smoke in the air. Peopled health has been great affected by air, noise and water pollution.Many people have died of diseases ca using by pollution.

39、In order to live the better life, it world. We should recycle, reduce and reuse things, what saves money and reduces pollution. Use things so long as possible. Don ' t use plastic bag. Besides, we must plamertrees and stop people cutting it down. We hope our world will be more and more beautiful

40、.參考答案經(jīng)典常規(guī)題一、語法填空1. 【答案】which【解題思路】 考查非限制性定語從句。分析句子結(jié)構(gòu)可知which is not good for the health為非限制性定語從句，先行詞為前文中的to have too much of both ,即 攝入過多的脂肪和鹽 ”。故填which。2.【答案】64. who 65. to prove【解題思路】64考查定語從句。分析句子結(jié)構(gòu)可知，空后面是一個(gè)定語從句，缺少連接詞，代指先行詞Sarah,在從句中作主語，故填 who。 3.【答案】63. swept 64. where【解題思路】63考查過去分詞。此處是 get done結(jié)構(gòu)

41、，表示被動，意為被掃進(jìn)了垃圾堆4.【答案】64. to 65. when 66. permitted【解題思路】64.考查介詞。固定短語：go back to回到":65.考查定語從句。后面是非限制性定語從句，從句缺少狀語，因?yàn)橄刃性~是時(shí)間，故填when。66考查過去分詞。被修飾的名詞和permit之間是被動關(guān)系，用過去分詞。二、短文改錯(cuò)5.【答案】interesting 改為 interested ; . that 改為 which【解題思路】 考查形容詞用法。張家夫婦對種菜感興趣；考查定語從句。該處前有逗號，后句為非限制性定語 從句，故用which。6.【答案】picture 前

42、加 this/the; they - that/which【解題思路】 考查限定詞。根據(jù)語境可知這張照片是上文提到的照片，是特指，故需要用限定詞this/the修飾；考查定語從句。分析句子可知，前面的倒裝句 "Around me in the picture are the things 是一個(gè)單句，而后面的“they were very important in my life at that time: car magazines and musical instruments. 也是個(gè)單句，在這種情況下，要么在兩個(gè)單句之間用并列連詞連接，要么把后面這個(gè)單句變?yōu)閺木?。從句意上看?/p>

43、這.里變?yōu)槎ㄕZ從句更為合理，故把 they改為that/which。 7.【答案】what-that/which（或去掉 what）; favoritest-favorite【解題思路】 此處考查引導(dǎo)定語從句的關(guān)系代詞。句意：我做的菜是媽媽最喜歡的。The dishes做先行詞，指物，定語從句缺少引導(dǎo)詞，從句缺少賓語，可知引導(dǎo)一詞在定語從句中作賓語，故把 what-that/which（或去掉what）;“ favorite本身就是 最喜歡“，故把 favoritest-favorite 。高頻易錯(cuò)題一、語法填空【答案】41. to be awarded 42. announcement 43

44、. responded 44. proud 45. if/whether46. Discussing 47. that 48. But 49. values 50. of【解題思路】 文章報(bào)道了一個(gè)類人機(jī)器人Sophia被授予沙特阿拉伯公民，成為第一個(gè)被授予公民權(quán)利的機(jī)器人。41. to be awarded考查不定式的被動。句中 the first robot和動詞award是被動關(guān)系，指機(jī)器人被授予公民身份。此處是 make sb. do sth.結(jié)構(gòu)，主動形式中省去to被動語態(tài)中要補(bǔ)出to,故填不定式的被動形式to be awarded.42. announcement考查名詞。此處由t

45、he限定做made的賓語用名詞，指作出宣布，故填 announcement.43. responded考查動詞。與全文時(shí)態(tài)一致，敘述發(fā)生過的事用一般過去時(shí)，故填 responded.44. proud.考查形容詞。此處由very修飾做系動詞am的表語用形容詞，故填 proud.45. if/whether.考查連詞。此處指是否Sophia和沙特阿拉伯公民有同等的權(quán)利還沒明確，表示是否，故填 if/whether.46. Discussing.考查動詞形式。句中主語Ross和動詞discuss是主動關(guān)系，此處作狀語用動詞-ing形式，故填 Discussing.47. that.考查連詞。句中包

46、含concerns的同位語從句，由that引導(dǎo)，故填that.48. But.考查連詞。句意：Ross表達(dá)了對人工智能如果變邪惡，會對人類構(gòu)成危險(xiǎn)的擔(dān)心，但是Sophia說它只是想幫助人類過更好的生活。前后句是轉(zhuǎn)折關(guān)系，故填 But.49. values.考查名詞。此處由human修飾指人類的價(jià)值觀念”，根據(jù)like wisdom, kindness, compassion用復(fù)數(shù)，故填values.50. of.考查介詞。accuse sb. of sth表示 指責(zé)/控告某人做某事”，是固定搭配。故填 of.二、 短文改錯(cuò)【答案】 Last month, I gave some of my c

47、lothes to a girl who needed it_because her parents didn't have moneythemto buy her newly clothes. In school, this girl was the victim of bullying because of the clothes that she wears. So I newworewent home and was told mom that I'd like 八 collect something for her. Knew what she suffered in

48、 the school brokemytoKnowingheart. Sometimes young people are so mean to others which don't have the money to buy some expensive thing. This who/thatthingshas to change because it is not clothes or shoes that makes a person. It is what we have in our heart but our soul that makeandmatters.【解題思路】

49、1 .考查代詞。句意：上個(gè)月，我把我的一些衣服給了一位需要衣服的女孩子。這里需要用them指代上文的復(fù)數(shù)名詞 clothes,故it-them。2 .句意：因?yàn)樗母改笡]有錢給她買新衣服。這里用形容詞new做名詞clothes的定語，故newly-new。3 .句意：在學(xué)校，這個(gè)女孩是被欺負(fù)的對象因?yàn)樗┑囊路?。根?jù)上下文時(shí)態(tài)以及時(shí)態(tài)一致，可知wears-wore。4 .句意：因此，我想回家告訴媽媽我想給她拿些衣服。根據(jù)句意可知，主語 I和動詞tell是主動關(guān)系，故 刪去was。5 .考查固定用法 would like to想要，故在like和collect之間加上to。6 .考查動名詞作主語

50、。句意：知道她在學(xué)校的遭遇讓我很心痛。這里動名詞短語作主語，故 Knew-knowing 。7 .考察定語從句關(guān)系代詞。句意：有時(shí)，年輕人對那些買不起昂貴東西的人非?？瘫?。此句中的定語從句，先行詞others,需要用關(guān)系代詞 who/that指代先行詞，并在定語從句中作主語，故 which-who/that。8 .考查名詞的數(shù)。這里“昂貴的東西”，用復(fù)數(shù)名詞thingso thing-things.9 .考查主謂一致。句意：并不是我們的衣服或者鞋子讓我們有尊嚴(yán)。強(qiáng)調(diào)句型中主語 not clothes or shoes,根據(jù)主謂一致原則，故動詞用make。故makes- make。10 .考查連

51、詞。句意：我們內(nèi)心和心靈擁有的才是要緊的。根據(jù)句意可知our heart和our soul是并列關(guān)系，用 and。故 but-and。精準(zhǔn)預(yù)測題一、語法填空【答案】41. have known 42. it 43. actually 44. published 45. reduces46. by 47. growth 48. that 49. teeth 50. better【解題思路】本文向讀者介紹了綠茶。從遠(yuǎn)古時(shí)代起，人們就開始了解綠茶的好處，并用它來治療從頭痛到抑郁的各種問題。今天， 根據(jù)科學(xué)研究發(fā)現(xiàn)綠茶有益于健康，綠茶可以減少某些癌癥發(fā)生的機(jī)率，抑制細(xì)菌的生長等。41. 考查時(shí)態(tài)。根據(jù)“ The Chinese_1_ (know) about the benefits of green tea since ancient times 中的"since1知，應(yīng)該用完成時(shí)。故填 "have known。"42. 考查代詞?！?they use_2_ to treat