人教版八年級(jí)下冊(cè)第二單元知識(shí)詳解及試卷

1、 -Unit2 單元重點(diǎn)詞組1. Clean-Up Day 清潔日                  2. an old peoples home 養(yǎng)老院3. help out with sth. 幫助解決困難        4. used to 曾經(jīng)  ；過去常常5. care for 

2、關(guān)心;照顧                     6. the look of joy 快樂的表情7. at the age of 在.歲時(shí)                 8. clean up 打掃(或清

3、除)干凈9. cheer up (使)變得更高興;振奮          10. give out 分發(fā);散發(fā)= hand out11. come up with 想出；提出              12. make a plan 制訂計(jì)劃13. make some notices 做些公告牌   

4、;     14. try out 試用;試行15. work for 為工作；為. 效力       16. put up 建造;舉起;張貼17. hand out 分發(fā);散發(fā);發(fā)給              18. call up 打電話;召集19. put off 推遲;延

5、遲                     20. for example 比如；例如=such as21. raise money 籌錢;募捐                 22. take after 與

6、.相像;像23. give away 贈(zèng)送;捐贈(zèng)                   24. fix up 修理;修補(bǔ);解決25. be similar to 與相似   be similar with 熟悉某事       26. set up 建立;設(shè)立=build

7、 27. disabled people 殘疾人               28. make a difference 影響;有作用 29. be able to 能夠            30. after-school reading program課外閱讀項(xiàng)目1. You could he

8、lp clean up the city parks.你可以幫助打掃城市公園?！窘馕?】help v helpful  1). help sb. to do sth. 幫助某人做某事。2). help oneself （ to ）自用（食物等）。3). help sb. out 幫助某人克服困難，渡過難關(guān)、解決問題、完成工作。4). with the help of 在幫助下。 =with sbs help5). help sb. with sth. 幫助某人做某事。      6).Cant help doing 情不自禁做.【20

9、13日照】15. Mary is so _. she comes to you whenever youre in trouble.       A. useful                  B. careful            

10、60;       C. thankful          D. helpful【解析2】clean up 把打掃干凈（v. + adv.）= clean up the table = clean the table up    Its your turn _up the kitchen.(clean)(    ) Your bedroom is too dirty, please _

11、. A. clean it up   B. clean up it   C. set it up(   ) If everyone pours less polluted water into Dianchi Lake, it will be _.     A. deeper and deeper  B. cleaner and cleaner    C. dirtier and dirtier  D. wider and wider2. The

12、 girl could visit the sick kids in the hospital to cheer them up. 女孩可以去醫(yī)院看望生病的孩子們，讓他們振作起來。cheer up 使振奮，使高興的（v. +adv）cheer sb. up =make sb. happy 使某人高興    cheer me up 使我高興(  ) You could visit _children in the hospital and _them_.A. ill, set, up  B. sick, clean, up  C. si

13、ck, cheer, up(    ) He looks sad .Lets _ him_.A. cheer , up      B. put, up       C. set up    D. call, up3. The boy could give out food at the food bank. 男孩可以在食物站分發(fā)食物【解析】give out =hand out分發(fā)(v. +adv)  hand out

14、 bananas      give out sth to sb. 分.給某人   Our teacher begins_(分發(fā)) our test paper.【短語】：give in 屈服 ; give back=return 歸還; give a speech 發(fā)表;  give sb. a call 給打電話;  give away 贈(zèng)送give away money to kids;  give sb. a hand =help sb. 幫助某人; give up doing

15、 sth =stop doing sth放棄做某事give up smoking 放棄吸煙;  give sb. sth = give sth to sb. 給某人某物;  give me money 給我錢=give money to me 給我線(     ) You shouldnt _your hope. Everything will better.A. give up   B. fix up   C. cheer up  D. put up(  

16、0;  ) We have raised some books. Well _to the poor children.A. put them up   B. give them away  C. gave them away.   D. put out them4. That sounds interesting. 那聽起來挺有趣?！窘馕觥縮ound   (1)n聲音  We heard a strange sound.【辨析】Sound/noise/voicesound(n.)指自然界中所有的聲音，可

17、指悅耳的聲音也可指噪音。noise一般指很響的，刺耳的聲音，即喧鬧，嘈雜聲等。voice指人通過發(fā)音器官發(fā)出的聲音（包括說話，唱歌等）。 Mary has a beautiful voice. 瑪麗的聲音很美。  Don't make such a noise. 別這樣大聲喧嘩。. Did you hear any strange _when the quake happened?      No, I was in my garden with my flowers and was enjoying the bea

18、utiful _of my birds at that time.    A. voice; noise       B. noise; sound      C. whisper; sound        D. sound; voice. Stop making so much _. The children are sleeping. A. voice  B. noise 

19、; C. sound(2) vi.聽起來，似乎，其后加表語（形容詞，介詞短語，名詞）  How does the music sound to you? 這音樂你聽起來怎么樣？  It sounds beautiful. 它聽起來很美?！?013山東臨沂】25. Do you know the song Gangnam Style?Of course. It _  interesting.A. tastes            B. smells

20、0;       C. sounds           D. feels5. Yeah, a lot of old people are lonely. 是的，很多老年人都很孤獨(dú)?！窘馕觥縜lone / lonely 辨析：(1)alone = by oneself   adj. 單獨(dú)的，指無人陪伴的客觀事實(shí)，不帶感情色彩。He often walks alone to home .(2)lonely 指人孤獨(dú)的，寂寞的，強(qiáng)

21、調(diào)主觀感受；也可指某個(gè)地方是荒涼的(   ) The old man lives _，but he never feels _. A. alone ;lonely  B. lonely; alone C. alone; alone D. lonely; lonely(   ) My little sister is afraid to stay at home alone. A. quietly  B. lonely  C. all the time D. by herself6. We should listen to t

22、hem and care for them .   我們應(yīng)該傾聽他們說話并且關(guān)心他們?！窘馕觥縞are for 照看；照顧； 照料Many students in our school _ the old and they usually offer their seats to them on buses.    A. worry about  B. care for   C. agree with  D. take care   【拓展】care的短語總結(jié)  &

23、#160; take care  =be careful  v.當(dāng)心，小心     take care of  =look after   v.照顧，照料，照看    take care of 處理，做完     care for   v.照顧，照看7. Mario Green and Mary Brown from Riverside High School give up several hours each w

24、eek to help others. 來自河畔高中的馬里奧。格林和瑪麗每周都會(huì)花幾個(gè)小時(shí)去幫助別人。several 可作定語，表示“幾個(gè)”： = a few   Several boys were injured. 有幾個(gè)小伙子傷了。       My friend speaks several languages. 我的朋友能講幾種語言8. He volunteers at an a

25、nimal hospital every Saturday morning.   他每周六早上在動(dòng)物醫(yī)院做志愿者?！窘馕觥縱olunteer v 志愿  n 志愿者     volunteer to do sth 志愿做某事Jack volunteered _(carry) the water.They often _(自愿去教) the children9. . But I want to learn more about how to care for animals. 但是我想學(xué)習(xí)更多的關(guān)于如何照顧動(dòng)物的知識(shí)【解析】&

26、#160; “疑問詞+不定式”作及物動(dòng)詞的賓語，【記】：I dont know what to do.I dont know how to do it .I dont know what to do with it.【拓展】 “特殊疑問詞 + 不定式” 與 “wh 從句的轉(zhuǎn)換。 轉(zhuǎn)換時(shí)只需在疑問詞后加主語（與主句主語一致），并將不定式改成“should +v原形“做謂語。I dont know how to solve the problem.= I dont know how I should solve the problem.    &#

27、160;  I dont know what _(bring) to the party.He wanted to know when_(go).10. I get such a strong feeling of satisfaction when I see the animals get better and the look of joy on their owners faces. 當(dāng)我看到動(dòng)物們變得更好，并且它們的主人的臉上呈現(xiàn)喜悅之情時(shí)，我有一種很強(qiáng)烈的滿足感。【解析1】such詞條詞性用法常用結(jié)構(gòu)such形容詞修飾名詞such a/an +形容詞+可數(shù)名詞單數(shù)no/a

28、ny/ some/ all/ many 等+such+名詞such+ 除many/few之外的形容詞+可數(shù)名詞復(fù)數(shù)such +除much/little之外的形容詞+ 不可數(shù)名詞so程度副詞修飾形容詞或副詞so+ 形容詞+a/an + 可數(shù)名詞復(fù)數(shù)so+ many/few +可數(shù)名詞復(fù)數(shù)so+ much/little+不可數(shù)名詞【解析1】(1)so that  如此.以致  “So +adj.+ that” “如此以至” 引導(dǎo)結(jié)果狀語從句  so后面接形容詞、副詞 He was so strong that he could lift the heavy bag.【

29、記】名前such,形副so，多多少少（many, much, few, little）都用so。The girl is _ a nice girl _ we all want to help her. A. such; that  B. too; to C. so; that  D. very; that“I'm a singer” is _ an interesting TV show _ many people like watching it.  A. so; that      B. such; t

30、hat C. so; as  D. such; as11. She could read by herself at the age of four.   她在四歲的時(shí)候就能夠獨(dú)自閱讀?！窘馕觥縜t the age of 在.歲的時(shí)候= when sb. was . years old.Do you know Mo Yan? Of course, He won the 2012 Nobel Prize for Literature the age of 57.         

31、;  A. in B. at C. on D. to12. Last year, she decided to try out for a volunteer after-school reading program.去年，她決定嘗試在一個(gè)課后閱讀項(xiàng)目中做一名志愿者?！窘馕觥縯ry out 嘗試；實(shí)驗(yàn)       try  v 試圖，設(shè)法，努力 【拓展】 (1)try on 試穿  (2) try to do sth 努力做某事 【側(cè)重盡力做】 (3) try doing sth 試圖做某事 【

32、側(cè)重嘗試做】(4)try ones best to do sth= do ones best to do sth 盡某人最大努力做某事  We should _(盡最大努力)to be happy in the future.(    ) We should try _ much fruit.  A. eat  B. to eat C. eating D. eats13. She still works there once a week to help kids learn to read.她仍然每周在那里工作一次，幫助孩子們學(xué)習(xí)閱

33、讀?！窘馕觥縪nce a week 一周一次【拓展】once = one time一次       twice= two times 兩次【注】：三次或三次以上用：“基數(shù)詞+times”three times 三次  four times 四次   three or four times 三到四次I chat with my friends online_(一兩次) a week._do you go to the cinema?  -Once a month.A. How long 

34、     B. How far        C. How often            D. How much14. Volunteering here is a dream come true for me.對(duì)于我來說，在這里做志愿工作使我夢(mèng)想成真?！窘馕觥?come true 實(shí)現(xiàn)詞條是否接賓語用法achieve是主語一般為“人”come true否主語一般是“夢(mèng)想；理想”We want to s

35、ee young people _(實(shí)現(xiàn)他們的夢(mèng)想)。_(實(shí)現(xiàn)) your dream through great effort is really cool.If we Chinese work hard together. China Dream will _ .A. come out  B. come true C. achieve【拓展】與come相關(guān)的短語：【短語】come and go 來來回回 come from 來自       come back 回來  come out  出

36、來  come on 加油，快點(diǎn)  come in 進(jìn)來    come back 回來come over 順便來訪    come true 實(shí)現(xiàn)   come up with 想出15. However, few people think about what they can do to help others.然而，很少有人會(huì)考慮他們能做些什么來幫助他人?！窘馕?】however 然而【辨析 】however和 but  二者都意為“可是

37、，但是”；   but是并列名詞，連接兩個(gè)并列分句，上下二句在總的意義上構(gòu)成了對(duì)比。  I really don't like cheese, but I will try just a little this time.我實(shí)在是不喜歡吃奶酪，但是這次我要嘗一點(diǎn)。   however不能直接連接兩個(gè)分句，必須另起新句，并用逗號(hào)隔開。      It&

38、#160;was raining hard. However, we went out to look for the boy.  雨下得很大，不過我們還是出去尋找那個(gè)孩子 【解析2】few 幾乎沒有詞條含義修飾的名詞的數(shù)例句few幾乎沒有（表否定含義）可數(shù)名詞復(fù)數(shù)They know few of usa few一些（表肯定含義）He made a few mistakeslittle幾乎沒有（表否定含義）不可數(shù)名詞I spend very little on fo

39、oda little一些（表肯定含義）I know a little about the story【注】 a few/ few The man has been here for many years, so he has a few friends.    這個(gè)人在這里住了很多年了，他有一些朋友。I am a new comer here, so I have few friends here.   我剛來到這里，所以我在這里沒有幾個(gè)朋友。a little/ littleThere is a little water in the

40、 glass.杯子里有一些水。There is little water in the glass, so you cant drink any.   杯子里幾乎沒有水了，你不可能喝到水了。 There used to be lots of fish in the lake.  Yes, but there are very _ now. A. few  B. fewer  C. little  D. LessThe girl in purple is new here, so _ people know her. A. 

41、few  B .a few  C .a little16.For example , we can make plans to visit sick children in the hospital or raise money for homeless people. 例如， 我們可以制定一些計(jì)劃去看望醫(yī)院生病的孩子們或者無家可歸的人們籌錢?！窘馕?】for examplefor example“例如”，一般只以同類事物或人中的“一個(gè)”為例，作插入語，用逗號(hào)隔開，可置于句首、句中或句末。  For example，he is a good student. 例如

42、，他就是個(gè)好學(xué)生。 such as“例如”，用來列舉同類人或事物中的幾個(gè)例子?？梢院蚢nd so on 連用。   Boys such as John and James are very friendly.  像約翰和詹姆斯這樣的男孩都很友好?！窘馕?】 raise  （raised; raised) v 募集；征集    raise money for. “為.籌款”【解析3】 home n 家homeless adj. 無家可歸的 be home to = be the home of sb. 成為家園 &#

43、160;a homeless boy 一個(gè)無家可歸的男孩【拓展】由home構(gòu)成的合成詞： homeland n 祖國  hometown n 家鄉(xiāng)  homework 家庭作業(yè)homeless adj. 無家可歸的  home-made adj. 自制的【同類記憶】 careless 粗心的  hopeless 沒有希望的  helpless 無助的  useless 沒有用的be home to sb. = be the home of sb. 是某人的家【短語】on ones way home 在某人回家的路上 stay at h

44、ome 呆在家里  go home 回家 at home 在家get home 到家You should do something to help _(無家可歸的)people.(    ) Mr. Li regards Ningxia as his second _ because he has been here for over twenty years.     A. family   B. house    C. room   D. h

45、ome17. Some people even stop doing their jobs for a few months to a year to move to another country, like Africa,and help people there.   有些人甚至?xí)Ｏ伦约旱墓ぷ鲙讉€(gè)月到一年去其他的國家，像非洲，并且?guī)椭抢锏娜藗?。【解析?stop doing (1)stop doing sth 停止做某事 Please stop speaking.請(qǐng)停止講話   (2)stop to do sth 停下來去做另外一件事

46、 Please stop to talk.請(qǐng)停下來講話   (3)stop sb. from doing sth =keep sb from doing sth=prevent sb from doing sth  阻止某人做某事 (4)cant stop doing sth 忍不住做Seeing their teacher _ into the classroom, they stopped _ at once.      A. walk; telling    

47、    B. entering; to speak   C. enter; to tell   D. walking; talking18. I repaired it . 我把它修好了【解析】 repair  v  “修理；修復(fù)”1) repair的對(duì)象范圍很廣，從房屋、道路、機(jī)器到日常生活必需品，是使受到一定損失或失靈的東西恢復(fù)其形狀或功能。    Who has repaired the broken leg of the table? 誰把桌子的斷腿修好了？2) me

48、nd的意思是恢復(fù)某物原來的樣子(包括用針、線來縫補(bǔ))，一般指較小之物。    This shirt is too old to mend. 這件衣服太舊不能補(bǔ)了。3) fix用于需要重新“調(diào)”物體的結(jié)構(gòu)，把松散的部件固定結(jié)實(shí)，將分離的物體各部分裝配起     來。用于美國口語中，與repair無多大區(qū)別。   Can you fix the broken chair? 你能修理那把壞了的椅子嗎?fix up=repair 修理(v. +adv)19. I take after my mother. 我長的

49、像我媽媽。【解析】(1)take after =be similar to在（外貌、性格等方面）與（父母）相像  （v. +adv）【短語】take back 收回，接回      take down 寫下   take off 脫下；起飛    take up 占去（時(shí)間或空間）take care 小心    take care of  照顧    take place 發(fā)生    t

50、ake out 拿出take away 拿走(2)look like 只指在外貌上與.相像【短語】：look after 照顧  look up 向上看，查找look for 尋找  look out 小心(  )Do you _after your mother or your father? My father .We both have big eyes and black hair.A. look  B. take   C. run(     ) The girl _ the woman

51、. Maybe she is her daughter. A. take care  B. takes after  C. takes off  D. look after20. Ill send you a photo of Lucky.【解析】(1) a photo of sb.  sb.為賓格，“某人的一張照片”，強(qiáng)調(diào)照片上的人就是他/她本人。  (2) a photo of sbs.  sbs.為名詞性物主代詞或名詞所有格，“某人的一張照片”，強(qiáng)調(diào)照片上的人是sb.所擁有的。 (   

52、)  One of my friends is a policewoman, this is a photo of        .        A. her      B. hers      C. she      D. his     

53、60;            21. Im sure you know that this group was set up to help disabled people like me.  我肯定你知道這個(gè)組織的成立是為了幫助像我這樣的殘疾人。【解析1】be sure (that) .be sureofabout doing sth，“確信”；“對(duì)有把握”。     I'm sure of his hon

54、esty我肯定他是誠實(shí)的。be sure to do sth ，表示說話人對(duì)句子主語作出的判斷，認(rèn)為句子主語“必定”、  “必然會(huì)”、“準(zhǔn)會(huì)”如何如何。    It is sure to rain天一定會(huì)下雨。be sure+賓語從句，表示主句主語對(duì)賓語從句中涉及的事物所作出的判斷，  意為“確信某事一定會(huì)”。We are sure he will make great progress this term   我們確信他這學(xué)期一定會(huì)取得巨大進(jìn)步【拓展】make sure表示“弄確實(shí)；核實(shí)；查證”。 ma

55、ke sure常用于祈使句，后面常接that賓語從句或of介詞短語?！窘馕?】set up 建立；設(shè)立   set up =establish =build建立（v. +adv）【短語】：set off 出發(fā)set about doing sth  著手去做某事（   ）The primary school _in 1995 with the hope of young people.A. was set up   B. was put up    C. was found【解析3】d

56、isabled adj. 肢體有殘疾的 （既可以做表語， 也可以做定語）。    disabled people 殘疾人  Though he is _(able) , Liu Wei made his dream to be a pianist come true.【加前綴dis- 構(gòu)成的派生詞】 dislike 不喜歡    disorder 無秩序  dishonest 不誠實(shí)  disappear 消失22. . But many people have these difficulties.但是

57、很多人有這些困難?！窘馕觥縣ave difficulty (in) doing sth 做某事有困難 I have great _ in finishing the work by myself. Could you help me?         No problem.   A.fun    B.success    C.advice     D.difficulty23. I was abl

58、e to bring him home. 我可以把它帶回家了。【解析】 be able to 能用于各種時(shí)態(tài)有人稱和數(shù)的變化 I will be able to dress more casually.can能用于現(xiàn)在時(shí)或過去時(shí)（could）沒有人稱和數(shù)的變化I could swim at the age of seven.=I was able to swim at the age of seven.例：Lucy could read story book at the age of four. A.is able to B.was able to  C.should D.woul

59、d24. My dogs name is Lucky a good name for him because I feel very lucky to have him. 我的狗的名字叫“幸運(yùn)” 對(duì)于他來說是個(gè)好名字，因?yàn)橛辛怂腋杏X自己很幸運(yùn)?！窘馕觥縝e/ feel lucky to do sth 做某事感到很幸運(yùn)?！窘馕?】 luck  n.“幸運(yùn)” lucky  adj.“幸運(yùn)的”  luckily  adv.“幸運(yùn)地”     unlucky  adj.“不幸的”    unlucki

60、ly  adv.“不幸地；不幸的是”_(luck),  he got the first prize this time.              25. Ill send you a photo of him if you like, and I could show you how he helpsme.如果你喜歡我會(huì)給你寄張他的照片，并且我會(huì)告訴你他是如何幫助我的?！窘馕?】send sent sent v 發(fā)送 【短

61、語】： send away 趕走  send for 派人去請(qǐng)  send off 寄出   send out 分發(fā)  send up 發(fā)射  send sb. sth = send sth to sb. 送給某人某物【注】類似的動(dòng)詞有：show (展示； 給看)   give (給)  lend (借出) offer（提供） return （歸還） tell （ 告訴）(    ) You fill in both parts of the form, then_.A. s

62、end up it   B. send for it  C. send it away  D. send it off(    ) Please send a photo of your family _ me.     A. for      B. at      C. to     D. with狀語從句條件狀語從句知識(shí)點(diǎn)總結(jié) 引導(dǎo)條

63、件狀語從句的連接詞主要有：if(如果）、unless（除非）或 as long as（只要）等。unless在意思上等于if.not。一、條件狀語從句用法 1、引導(dǎo)條件狀語從句最常用的連詞是if,由if引導(dǎo)的條件狀語從句表示在某種條件下某事很可能發(fā)生。如: If you ask him, he will help you.。 If you fail in the exam, you will let him down.2、unless = if.not. 除非,若不,除非在的時(shí)候 例如：Let's go out for a walk unless you are too tired.

64、=If you are not too tired, let's go out for a walk. Unless it rains, the game will be played.除非下雨,比賽將照常進(jìn)行。二、時(shí)態(tài)問題 在條件狀語從句中，要注意“主將從現(xiàn)”的規(guī)定，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)表示將來時(shí)。例句：I will come to see you if I have time. 常見考法 對(duì)于條件狀語從句的考查，多以單選和完形填空的形式，從時(shí)態(tài)的角度設(shè)題，考查學(xué)生靈活運(yùn)用的能力，或從連詞的意義角度讓大家選擇連詞。典型例題：If he _in half an hour

65、,we _wait for him. A. won't come ,won't B.won't come ,don't C.doesn't come ,won't D.will come ,don't誤區(qū)提醒 if 既可以引導(dǎo)條件狀語從句，表示“如果”，也可以引導(dǎo)賓語從句，表達(dá)“是否”。辨別它在這兩種從句中的時(shí)態(tài)是我們經(jīng)常容易出錯(cuò)的地方。另外，if 和unless的用法也需注意。典型例題： -I wonder if your wife to the party. -If your wife _, so will mine。. A. wil

66、l go， go B. will go, goes C.goes, will go D. will go, will go時(shí)間狀語從句知識(shí)點(diǎn)總結(jié) 在復(fù)合句中，由時(shí)間連接詞引導(dǎo)的狀語從句叫做時(shí)間狀語從句。時(shí)間狀語從句通常由when, while, as，after,before,since,until等詞引導(dǎo)。一、時(shí)間狀語從句種類1、引導(dǎo)的從句表示主從句的動(dòng)作同時(shí)發(fā)生，或從句的動(dòng)作在主句之前。when引導(dǎo)的從句的謂語動(dòng)詞可以是延續(xù)性的動(dòng)詞，又可以是瞬時(shí)動(dòng)詞。例如： When she came in, I stopped eating.她進(jìn)來時(shí)，我停止吃飯。(瞬時(shí)動(dòng)詞) When I lived

67、in the countryside, I used to carry some water for him.當(dāng)我住在農(nóng)村時(shí)，我常常為他擔(dān)水。（延續(xù)性的動(dòng)詞） We were about to leave when he came in.我們就要離開，就在那時(shí)他進(jìn)來了。 2、While引導(dǎo)的從句的謂語動(dòng)作必須是延續(xù)性的，并強(qiáng)調(diào)主句和從句的動(dòng)作同時(shí)發(fā)生（或者相對(duì)應(yīng)）。并且while有時(shí)還可以表示對(duì)比。例如： While my wife was reading the newspaper, I was watching TV. (was reading是延續(xù)性的動(dòng)詞，was reading和was

68、 watching同時(shí)發(fā)生) I like playing football while you like playing basketball.我喜歡踢足球，而你喜歡打籃球。（對(duì)比） 3、As表示“一邊一邊”，as引導(dǎo)的動(dòng)作是延續(xù)性的動(dòng)作，一般用于主句和從句動(dòng)作同時(shí)發(fā)生；as也可以強(qiáng)調(diào)“一先一后。例如： We always sing as we walk.我們總是邊走邊唱。（as表示“一邊一邊”） 4、由till或until引導(dǎo)的時(shí)間狀語從句。till和until一般情況下兩者可以互換，但是在強(qiáng)調(diào)句型中多用until。并且要注意的是：如果主句中的謂語動(dòng)詞是瞬時(shí)動(dòng)詞時(shí)，必須用否定形式；如果主句

69、中的謂語動(dòng)詞是延續(xù)性動(dòng)詞時(shí)，用肯定或否定形式都可以，但表達(dá)的意思不同。till不可以用在句首，而until可以放在句首。例如： I didn't go to bed until（till） my father came back.I worked until he came back. 5、由since引導(dǎo)的時(shí)間狀語從句表示“自從以來”。 I have been in Beijing since you left. 6、由as soon as引導(dǎo)的時(shí)間狀語從句表示“一就”。例如： As soon as I reach Canada, I will ring you up. 二、時(shí)態(tài)問題

70、 在狀語從句中，有“主將從現(xiàn)”的規(guī)定，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)表示將來時(shí)。例句：I will call you as soon as I arrive in Beijing. 我到北京就將給你打電話。（這是由as soon as引導(dǎo)的時(shí)間狀語從句，從句中的謂語動(dòng)詞arrive是一般現(xiàn)在時(shí)，表示一般將來時(shí)，決不可用will arrive） 常見考法 對(duì)于時(shí)間狀語從句的考查，多以單選和完形填空的形式，從連詞的意義角度讓大家選擇連詞，或從時(shí)態(tài)的角度設(shè)題，考查學(xué)生靈活運(yùn)用的能力。 典型例題：I'm sure he will jump up when he the good news. A . know B will know C. knows Dknowing誤區(qū)提醒 When既可以引導(dǎo)時(shí)間狀語從句，也可以引導(dǎo)賓語從句，辨別它在這兩種從句中的時(shí)態(tài)是我們經(jīng)常容易出錯(cuò)的地方。 典型例題：I dont know when he next week. when he , please let me know. A.