狀語(yǔ)從句專項(xiàng)練習(xí)題單項(xiàng)選擇70道

1、 狀語(yǔ)從句專項(xiàng)訓(xùn)練1.   Was Erics father very strict with him? Yes.He never praised him _.he became one of the top students in his grade.A. since             B. when          

2、     C. until              D. became2.    I _ him the news as soon as he _ back. A. will tell；will come     B. will tell；comes     C. tell；will c

3、ome     D. tell；comes  3.   Dont worry about me. I will call you_ I arrive in London.  A. when           B. while            C. as soon as   

4、;      D. after4.    I will tell Jenny about the good news as soon as she _ back. A. comes       B. came   C. will come        D. has come5.   31. I have h

5、eard a lot of good things about you         I came back from abroad. A. since          B. until     C. before      D. when 6.   -Have you fi

6、nished your speech ? -No. Last night I was writing _ I heard someone shouted “Help”. A. until                      B. while           &

7、#160;        C. if                   D. when 7.   What were you doing _ the rainstorm came? A. while        &#

8、160;B. when       C. before       D. after 8.   My father was watching TV _ my mother was cooking. A. when              B. until  

9、              C. while                 D. as soon as 9.   39.I will give him the gift as soon as he    &#

10、160;   .      A. will arrive B. arrive C. arrives D. arrived10.  -Lets go and play games, OK? -Sorry, Mike. I wont go out _ I finish my homework. A. until  B. when   C. although   D. if 11. My father was w

11、atering the flowers in the garden_ my mother was cooking lunch in the kitchen. A. if              B. while           C. unless         

12、  D. when 12.  I      the bike to you when I get home. Thank you. A. give        B. gives      C. gave          D. will give13. &#

13、160; Wheres your report, Sam?          Sorry, Boss. Ill give it to you as soon as it _.         A. finishes       B. will finish      C. is

14、finished      D. will be finished 14.   Wu Yi will help with the housework he gets home after school.  A. since                B. while              C.

15、0;as soon as D. until15.   Phone me you get to Wuzhong.  A. since               B. so that               C. as soon as              

16、60;D. while 16.   Are you going to tell the good news to Susan? Of course. I'll tell her _ she comes back. A. before               B. Although               C. as long as&

17、#160;              D. as soon as 17.   Its raining outside. Dont leave _ it stops. A. when    B. until    C. although    D. so 18.    I didnt buy the book _ I didnt

18、have enough money. You should take enough money with you when you go shopping. A. thoug h      B. because           C. so                

19、60; D. if19.   I didnt buy the book         I didnt have enough money. A. though     B. because     C. so    D. if 20. Jenny was late for class this morning_ she got

20、 up very late.        A. so          B. because     C. but      D. so that 21.   we have enough money,we wont buy any useless things. A. Sin

21、ceB. UntilC. BecauseD. Although22.   5. She drove fast        she could get home earlier.        A. in order to B. because of C. So that D. so as to23.  I practice singing every day _ I can go to

22、 a music college.     A. so that B. in order to C. If D. although24.  You'd better take the map with you _ you won't get lost, A. after B. as soon as C. Though D. so that25.  You'd better take the map with you _ you won't get lost, A. after B. as so

23、on as C. though D. so that26.   The boy is _ young _ he cant go to school.   A. too, that B. so, that C. too, to D. such, that27.   The teacher speaks         quickly        we cant follow him.   

24、;     A. such, that B. too, to C. so, that D. too, that28.   He is _a clever boy_his teachers like him very much. A. such, that B. so, that C. too, to D. enough, for29.   -Jim, you visited Wuhan Garden Exp Park this National Day. What do you think of

25、 it?    - The trip is enjoyable, but there are _ many people _ we cannot find a good place to eat. A. enough, to B. too, to C. so, that D. too, that30.  Mary was _ill_ her mom had to stop working to look after her. A. such, that B. such a, that C. so, that f D. so a , that31.

26、0; The man is _ old _ he cant take good care of himself. A. such, that B. so, that C. too, to D. enough, to32.  The man is        old           he can't work any longer. A. too, that B. so, that C. too, to D. en

27、ough, that33.  She was _ angry with her son _ she couldnt say anything. A. so, that B. such, that C. too, to D. in order, that34.  TF Boys are _famous _ all the teenagers know them.     A. too, to B. enough, to C. so, that D. as, as35.   Li Na is  &#

28、160;     famous        all the tennis fans in China know her. A. too, to B. enough, to C. as, as D. so , that36.    He was _ tired _ he could not go on walking.   A. too, to B. such, that C. so, that D. enough, to37.

29、0;  Kate, Angela and Cindy are _ cute kids that they have _ many fans in China.   A. so, such B. such, such C. such, so D. so, so38.    You should talk to your parents and you will get help _ you have a problem. A. unless B. if C. until D. so39.   The Chinese dream

30、 _ true if everyone works hard enough.      A. come B. comes C. will come D. came40.    If Xiaolin _early, he wont miss the early bus.    A. gets up B. doesnt get up C. will get up D. wont get up41.   They will have a picnic in the park _it is a

31、 fine day.   A. if B. or C. so D. although42.   -Lets go to the community if it_tomorrow.   -But nobody knows if it_tomorrow.A. wont rain;rains           B. doesnt rain;rains           C. do

32、esnt rain; will rain    D. wont rain; will rain43.   They will have a trip to Ge Garden if it _tomorrow.   A. wont rain B. will rain C. didnt rain D. doesnt rain44.   Tom will come and play with me if he _ busy. A. is B. wont be C. isnt D. will be45. 

33、;  We cant be successful _ we keep working hard. A. if B. unless C. because D. when46.   He will get to work on time if he _ fast.    A. drive B. drivers C. drove D. will drive47.   Would you mind  if  Tom _ English aloud here? A. will read 

34、;          B. is reading   C. reads D. is going to read 48.  She will call you if she _.        A. goes to B. go back C. come back D. comes back49.   If it _ to

35、morrow, I will do some sightseeing with my parents in the Summer Palace. A. didnt rain      B. wont rain   C. doesnt rain D. isnt raining50.   Well have a picnic tomorrow _ it doesnt rain.       A. if B. w

36、hen C. while D. becuase51.   I dont know if he _ tomorrow. If he _, Ill tell him about it. A. will come, will come                        B. comes, comesC. comes, will co

37、me   D. will come, comes52.  - Does Ted tell you if he _ next Sunday?     - No, he doesnt. But if he         , Ill give you a ring.A. will come, will come B. will come, comes  C. comes, come

38、s D. comes, will come53.    When shall I hand in my report? - As soon as it _ tomorrow. A. completes B. is completed C. will complete D. will be completed54.    _ you dont give up ,your dreams will come true.    A. As well as B. As good as C. As

39、 soon as D. As long as55.   I dont know if it _ tomorrow. If it _, I wont go.  A.  will rain; rains B.  will rain; will rain C.  rains; rains D.&

40、#160; rains; will rain 56.   _ you put your heart into study, you will get better grades. A. As long as B. Although C. Though D. So 57.   You will see many aunts dancing together on the square if it in the evening.  A. doesnt rain B. rains C. wi

41、ll rain D. wont rain58. I want to know if there _ a sports meeting next month. If they_ it, I must get good ready for it. A. is, will hold B. will be, hold C. is, hold D. will be, will hold59.   I dont know if he         tomorrow.  If

42、he        , Ill call you.      A. comes, comes B. will come, comes C. will come, will come D. comes, will come60.   _ its raining , _ they expect to go to the park. A. Although, but B. Although, / C. /, / D. But, although61.  

43、0;44. No matter          you do, Ill be on your side. A. how B. when C. why D. what62.   Youd better travel around Nanjing with a local tour guide you want to know more about its culture.  A. Unless B. until C. although D. if63.  

44、  Remember, Tom, _ happens, keep calm and quiet. - I will , thanks, Dad.       A. what B. when C. how D. what ever64.  _ it is snowing, it isnt very cold. A. Because B. If C. When D. Although65.  _he is poor(貧窮),      &#

45、160;   he gives a lot of money to the students in poor areas. A. Although, but B. /, and C. Although, / D. Because, so66.  _it was very cold, _my friend still went swimming in the river this morning.    A. Although;/    B. Although; but

46、0; C. But; although D. /;although67.   -The classroom is _ clean _ it was yesterday. -Sorry, I forgot to clean it. A. as, as B. so, as C. not as, as D. more, than68.           you work,      

47、0;     your English will be. A. The more ; better   B. The harder; the better   C. The hardest; the best D. The more ; best69. He speaks English well, but of course not _ a person born in England. A. so clearly as   B. as clear as

48、  C. more clearly  D. clearer than70.   I want to take the first bus, _I get up early. A. and B. but C. because D. so狀語(yǔ)從句專項(xiàng)訓(xùn)練【答案】一、客觀題1.  C       2.  B       3.  C&#

49、160;      4.  A       5.  A       6.  D       7.  B       8.  C   

50、;    9.  C       10.  A       11.  B       12.  D       13.  C    

51、0;  14.  C       15.  C       16.  D       17.  B       18.  B      &#

52、160;19.  B       20.  B       21.  D       22.  C       23.  A       24.

53、60; D       25.  D       26.  B       27.  C       28.  A       29.  C

54、       30.  C       31.  B       32.  B       33.  A       34.  C 

55、0;     35.  D       36.  C       37.  C       38.  B       39.  C   &#

56、160;   40.  A       41.  A       42.  C       43.  D       44.  C     

57、  45.  B       46.  B       47.  C       48.  D       49.  C      

58、0;50.  A       51.  D       52.  B       53.  B       54.  D       55. 

59、; A       56.  A       57.  A       58.  B       59.  B       60.  B&#

60、160;      61.  D       62.  D       63.  D       64.  D       65.  C  

61、     66.  A       67.  C       68.  B       69.  A       70.  D   

62、0;   二、主觀題【解析】1.  not.until.，固定搭配，意為：一直到·······才2.  句意：他一回來(lái)我就告訴他這個(gè)消息。在時(shí)間狀語(yǔ)從句中用一般現(xiàn)在時(shí)表將來(lái)，主句用將來(lái)，故選B。3.  根據(jù)語(yǔ)境可知句意：不要擔(dān)心我，我一到達(dá)倫敦就給你打電話。一就，as soon as。故選C。4.  句意：Jenny一回來(lái)，我就把好消息告訴她。在時(shí)間狀語(yǔ)從句中用一般現(xiàn)在時(shí)表將來(lái)。故選A。5.  句

63、意：自從我從國(guó)外回來(lái)，我聽(tīng)到了很多關(guān)于你的好消息。A.自從；B.直到；C.在。之前；D.當(dāng)。時(shí)候。主句時(shí)態(tài)have heard,從句時(shí)態(tài) came back，主句是現(xiàn)在完成時(shí)，從句是一般過(guò)去時(shí)，所以選since，表示從過(guò)去某時(shí)間開(kāi)始一直延續(xù)到現(xiàn)在的情況。故選A。6.  句意：你完成你的演講了嗎？沒(méi)有。昨天晚上，我正在寫的時(shí)候聽(tīng)到有人叫“救命”?！爱?dāng)?shù)臅r(shí)候”可用 when或while，when表示當(dāng)某個(gè)動(dòng)作發(fā)生的時(shí)候另一動(dòng)作正在進(jìn)行，后接短暫性動(dòng)詞；while表示當(dāng)某個(gè)動(dòng)作正在進(jìn)行時(shí)另一動(dòng)作也在進(jìn)行，后接延續(xù)性動(dòng)詞。結(jié)合語(yǔ)境可知用when符合句意，故選D。7.

64、60; while當(dāng)時(shí)候，而（后面的從句中通常用延續(xù)性動(dòng)詞）；when當(dāng)時(shí)候（后面的從句中通常用短暫性動(dòng)詞），before在之前；after在之后，根據(jù)句意：當(dāng)暴風(fēng)雨到來(lái)的時(shí)候，你正在做什么？come是短暫性動(dòng)詞，故選B。8.  考查時(shí)間狀語(yǔ)從句。When“當(dāng)”，until一直到.，可加短暫性動(dòng)詞或延續(xù)性動(dòng)詞；while“當(dāng)，而”；與延續(xù)性動(dòng)詞連用，常用于進(jìn)行時(shí)。as soon as 一.就.，句意“我爸爸在看電視時(shí)媽媽在做飯?！北韺?duì)比用while，意為“而”。故選C。9.  此題考查的是as soon as引導(dǎo)的時(shí)間狀語(yǔ)從句的時(shí)態(tài)搭配：主句是

65、一般將來(lái)時(shí)態(tài)，從句用一般現(xiàn)在時(shí)態(tài)，he做主語(yǔ)，謂語(yǔ)動(dòng)詞用第三人稱單數(shù)形式。故選：C。10.  句意：-讓我們?nèi)プ鲇螒虬?，好嗎?對(duì)不起，邁克。我要完成作業(yè)才出去。notuntil直到才。故選A。11.  if“如果，引導(dǎo)條件狀語(yǔ)從句”，while“當(dāng)?shù)臅r(shí)候，表示當(dāng)某個(gè)動(dòng)作正在進(jìn)行時(shí)另一動(dòng)作也在進(jìn)行”，unless“除非，如果不，引導(dǎo)條件狀語(yǔ)從句，等于if not”，when“當(dāng)?shù)臅r(shí)候，表示當(dāng)某個(gè)動(dòng)作發(fā)生時(shí)另一動(dòng)作正在進(jìn)行”，通過(guò)分析句子的主句和從句可發(fā)現(xiàn)was watering和was cooking，過(guò)去進(jìn)行時(shí)表示過(guò)去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作，可知應(yīng)用w

66、hile把兩個(gè)正在進(jìn)行的動(dòng)作連起來(lái)，表示當(dāng)某個(gè)動(dòng)作發(fā)生時(shí)另一動(dòng)作正在進(jìn)行，故選B。12.  句意：當(dāng)我到家的時(shí)候，我會(huì)把自行車給你。謝謝。根據(jù)when可知這是時(shí)間狀語(yǔ)從句，主句用一般將來(lái)時(shí)，從句用一般現(xiàn)在時(shí)，空格位于主句部分，主句缺謂語(yǔ)，動(dòng)詞應(yīng)用一般將來(lái)時(shí)，故選D。13.  【解析】句意：Sam,你的報(bào)告在哪兒？對(duì)不起，老板。它一完成我就把它給你。as soon as引導(dǎo)的時(shí)間狀語(yǔ)從句，主句為將來(lái)時(shí)，從句用一般現(xiàn)在時(shí)。句中指報(bào)告被完成，故用一般現(xiàn)在時(shí)的被動(dòng)語(yǔ)態(tài)be finished,根據(jù)主語(yǔ)it,be動(dòng)詞用is，故答案選C。  考點(diǎn)：考查as

67、soon as引導(dǎo)的時(shí)間狀語(yǔ)從句和一般現(xiàn)在時(shí)的被動(dòng)語(yǔ)態(tài)14.  句意:吳怡放學(xué)后一到家就幫著做家務(wù)。本題考查連詞。根據(jù)主句的一般將來(lái)時(shí)態(tài)和從句的一般現(xiàn)在時(shí)態(tài)可以判斷答案選C。15.  句意:你一到吳忠就打電話給我。本題考查連詞的用法。since自從,既然;so that以便;as soon as 一就;while當(dāng)?shù)臅r(shí)候。根據(jù)句意可知選擇C項(xiàng)。16.  句意為：-你打算告訴Susan這個(gè)好消息嗎？ -當(dāng)然。她一回來(lái)我就告訴她。一就：as soon as.故選：D。17.  句意：外面正在下雨，直到雨停了你再離開(kāi)。A

68、.when當(dāng)時(shí)候；B.until 直到，固定結(jié)構(gòu)notuntil意思是直到才；C.although 盡管； D.so所以。 故選B。18.  句意：我沒(méi)有買那本書，因?yàn)槲覜](méi)有足夠的錢。你應(yīng)該拿足夠的錢，當(dāng)你去購(gòu)物的時(shí)候。though盡管，引導(dǎo)讓步狀語(yǔ)從句；because因?yàn)?，引?dǎo)原因狀語(yǔ)從句； so因此，引導(dǎo)結(jié)果狀語(yǔ)從句；if如果，引導(dǎo)條件狀語(yǔ)從句；根據(jù)句意可知上下句是因果關(guān)系，沒(méi)有足夠的錢是沒(méi)有買到書的原因，故選B。19.  根據(jù)句意：我沒(méi)有買這本書因?yàn)槲覜](méi)有足夠的錢。 though 雖然；  

69、;because 因?yàn)椋?#160;so 因此；  if 如果，故選B。20.  【解析】句意：Jenny今天早晨上課遲到因?yàn)樗鸫餐砹?。A.so 所以；B.because 因?yàn)椋籆.but但是；D.so that以致。這兒表示遲到的原因，用because。故答案選B?？键c(diǎn)：考查連詞的辨析以及because引導(dǎo)原因狀語(yǔ)從句21.  句意:盡管我們有足夠的錢,我們也不會(huì)買沒(méi)用的東西。本題考查狀語(yǔ)從句。since意為“自從,因?yàn)椤?because意為“因?yàn)椤?until意為“直到”;although意為“盡管,雖然”。根據(jù)句意可知D為正確

70、答案。22.  此題考查的是目的狀語(yǔ)從句。句意為：她開(kāi)得快以便她能早點(diǎn)到家。選項(xiàng)A、B、D后均不能接句子，只有選項(xiàng)C后可以接句子。故選：C。23.   so that“為了，以致于，后接從句，引導(dǎo)目的狀語(yǔ)從句”；in order to“為了，后接動(dòng)詞原形”； if “如果，引導(dǎo)條件狀語(yǔ)從句”；although “盡管，即使，引導(dǎo)讓步狀語(yǔ)從句”，由上半句可知我每天練習(xí)唱歌，由下半句可知我可以去音樂(lè)學(xué)院學(xué)習(xí)，所以每天練習(xí)唱歌的目的是可以去音樂(lè)學(xué)院學(xué)習(xí)，屬于目的狀語(yǔ)從句，故選A。24.  after“在之后，引導(dǎo)時(shí)間狀語(yǔ)

71、從句”；as soon as “一就，引導(dǎo)時(shí)間狀語(yǔ)從句”；though“即使，盡管，引導(dǎo)讓步狀語(yǔ)從句”；so that“以致于，為了，引導(dǎo)目的狀語(yǔ)從句”，句意：你最好隨身攜帶地圖以致于不會(huì)迷路。由此可知攜帶地圖的目的是為了不用迷路，引導(dǎo)的是目的狀語(yǔ)從句，應(yīng)用so that，故選D。 25.  after“在之后，引導(dǎo)時(shí)間狀語(yǔ)從句”；as soon as “一就，引導(dǎo)時(shí)間狀語(yǔ)從句”；though“即使，盡管，引導(dǎo)讓步狀語(yǔ)從句”；so that“以致于，為了，引導(dǎo)目的狀語(yǔ)從句”，句意：你最好隨身攜帶地圖以致于不會(huì)迷路。由此可知攜帶地圖的目的是為了不用迷路，引導(dǎo)的是目的

72、狀語(yǔ)從句，應(yīng)用so that，故選D。 26.  句意為：那個(gè)小男孩如此的小，以至于他不能去上學(xué)。too +形容詞/副詞to do sth.“太而不能做某事”；so+形容詞/副詞 +that引導(dǎo)狀語(yǔ)從句，“如此以至于”。such+形容詞+名詞+ that 引導(dǎo)狀語(yǔ)從句，“如此以至于”。結(jié)合句意，太小而不能上學(xué)， 故選B。 27.     本題中too+形容詞或副詞+to+動(dòng)詞不定式，表示"太以致不能"，suchthat作“如此以致”解，連接一個(gè)表示結(jié)果的狀語(yǔ)從句。與sothat 意思相同，但用法

73、不同。在sothat這一結(jié)構(gòu)中，so后邊可加形容詞或副詞，而such后邊要用名詞(這個(gè)名詞前面可以帶形容詞，也可以不帶)。如果such后邊的名詞前由many、much、few、little等詞所修飾的話，則不用 such而用so。橫線后是quickly，是一個(gè)副詞，故要用so來(lái)修飾。應(yīng)選C。28.  根據(jù)句意：他是一個(gè)如此聰明的孩子，以至于他的老師們非常喜歡他?？芍@是一個(gè)結(jié)果狀語(yǔ)從句，so與such在修飾可數(shù)名詞單數(shù)時(shí)，結(jié)構(gòu)分別為：such + a/an +形容詞+名詞，so+ 形容詞+a/an+ 名詞，故選A。29.  根據(jù)句意：這次旅行很有趣，但是

74、有太多的人，以至于我們不能找到一個(gè)吃飯的好地方?？芍@是so.that.引導(dǎo)的結(jié)果狀語(yǔ)從句，故選C。30.  句意：瑪麗病得那么很厲害以至于她媽媽不得不停止工作照顧她。so. that 如此.以至于；故選C。31.  句意：這個(gè)男人如此老以至于他不能很好地照顧自己。so.that如此.以至于，so后加形容詞或副詞；such.that中such后修飾名詞；too.to結(jié)構(gòu)引導(dǎo)簡(jiǎn)單句，太.而不能；enough.to引導(dǎo)簡(jiǎn)單句，太.能。故選B。32.  此題考查的是結(jié)果狀語(yǔ)從句。句意為：這個(gè)人如此老以至于他不能再工作。如此以至于：

75、sothat。故選：B。33.  A. so, that 如此······以至于······，引導(dǎo)結(jié)果/目的狀語(yǔ)從句，so后面跟形容詞或副詞； B. such, that如此······以至于······，引導(dǎo)結(jié)果/目的狀語(yǔ)從句 ，such后面跟名詞；C. too, to 太而不能； D. in order,

76、 that 為了······；引導(dǎo)目的狀語(yǔ)從句；根據(jù)分析可知選A。34.  句意為：TF男孩們是如此有名以致于所有的青少年都知道他們。tooto，太而不能；enoughto.：足夠可以去做某事；sothat：如此以致于；asas和 一樣。故選：C。35.  固定句式so.that.如此，以致，that后引導(dǎo)一個(gè)結(jié)果狀語(yǔ)從句。句意：李娜是如此的出名以至于中國(guó)的網(wǎng)球迷都認(rèn)識(shí)她。故選D。36.  句意：他是如此疲憊以至于不能繼續(xù)行走。so+形容詞/副詞+that如此以至于。A太而不

77、能；B如此以至于，但such后接名詞；D足夠做某事。故選C。37.  句意：凱特，安吉拉和辛蒂是如此可愛(ài)的孩子，以至于她們?cè)谥袊?guó)有很多粉絲。Such+形容詞+名詞的復(fù)數(shù)+that表示如此以至于，so many +可數(shù)名詞的復(fù)數(shù)，根據(jù)句意，故選C。38.  此題考查的是條件狀語(yǔ)從句。句意為：如果你有問(wèn)題你應(yīng)該和你父母談，你將得到幫助。if引導(dǎo)條件狀語(yǔ)從句，故選：B。39.  句意：如果每個(gè)人都足夠努力，中國(guó)夢(mèng)就會(huì)實(shí)現(xiàn)。if 引導(dǎo)的條件狀語(yǔ)從句用一般現(xiàn)在時(shí)，主句用一般將來(lái)時(shí)態(tài)。故選C。40.  本題考查：If引導(dǎo)的條件

78、狀語(yǔ)從句，體現(xiàn)主句用將來(lái)時(shí)態(tài)，從句用一般現(xiàn)在時(shí)，故選A。41.  本句是考查“if”引導(dǎo)的主將從現(xiàn)句式，譯為“如果天氣好，他們將在公園野餐”，故選A。42.  句意:如果明天不下雨,就讓我們?nèi)ド鐓^(qū)吧!-但是沒(méi)有人知道明天是否會(huì)下雨。結(jié)合語(yǔ)境可知上文是條件狀語(yǔ)從句，當(dāng)主句描述將來(lái)動(dòng)作時(shí)，條件狀語(yǔ)從句中用一般現(xiàn)在時(shí)態(tài)表示將來(lái)動(dòng)作。下文是賓語(yǔ)從句，時(shí)態(tài)和主句沒(méi)有必然聯(lián)系。結(jié)合語(yǔ)境考察從句中描述的是將來(lái)動(dòng)作，故用一般將來(lái)時(shí)態(tài)。故選C。 43.  句意：如果明天不下雨，他們將會(huì)去Ge 花園旅游。根據(jù)主將從現(xiàn)原則，主句是一般將來(lái)時(shí)態(tài)，在時(shí)間和條件狀語(yǔ)從句中要用一般現(xiàn)在時(shí)代替一般將來(lái)時(shí)態(tài)，if引導(dǎo)的是條件狀語(yǔ)從句，故選D。44.  根據(jù)句意：如果湯姆不忙就會(huì)跟我們一起玩。If如果，引導(dǎo)條件狀語(yǔ)從句，主句為一般將來(lái)時(shí)，從句用一般現(xiàn)在時(shí)，應(yīng)選：C。45.  A. if  如果；B. unless 除非，如果不；C. because 因?yàn)椋籇. when 當(dāng)