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4 条件状语从句 连接词主要有: if 如果 (if 引导的条件句有真实条件句和非真实条件句两种。非真实条件句已在虚拟语气中阐述。) unless 、 if not除非 as/so long as 、on condition that只要 once 一旦……就…… in case 假如 supposing that 、given that假定 providing that、provided that 以……为条件，倘若 【考点17】条件句的表达形式及其引导词的用法。 【考例】 1.In time of serious accidents，________ we know some basic things about first aid, we can save lives. （重庆卷06-23） A.whether B. until C.if D. unless 2.We won’t keep winning games _______ we keep playing well. （浙江卷06-2） A.because B. unless C. when D. while 3.________you have tried it, you can't imagine how pleasant it is. （北京卷06-33） A. Unless B. Because C. Although D. When 4.Don't be afraid of asking for help ____ it is needed.(NMET2003) A.unless B. since C. although D. when B．if notcarefully dealt with D．not ifcarefully dealt with 6．You will be successful in the interview_____ you have confidence.（07福建卷-29） C.until D. though 7. —Have you got any idea for the summer vacation?（08全国I卷-1） —I don’t mind where we go ______ there’s sun, sea and beach. A. asif B. as long as C. nowthat D. in order that 8.--Do you have a minute? I’ve got something to tell you.（08安徽卷-31） --Ok, ______ you make it short. A. now that B. if only C. so long as D. every time 9. I agree to his suggestion ______the condition that he drops all charges.（辽宁卷31） A.by B. in C. on D. to 【透视】CBADB BBCC 4.根据句意分析，when在此句中意为'如果'，引导条件状语从句，相当于if。本题选D正确。 【超链接】 1.if如果；if only 但愿……；要是……就好了; only if 只有 2.unless如果不，除非，多数情况下与if ．．． not相同； 3.once一旦； 4.as/so long as只要； 5.祈使句＋and／or＋句子等。其中①②⑤是考查的重点。 6.on condition that=if 7.provided/providing… 8.given（that）…'在有……的情况下；如果有……；假定……；考虑到……' 9.supposing… 10.if/when (it is)possible/necessary; if (it is) so/not You should look the new words up in the dictionary when necessary. Supposing we can't get him informed in advance, what should we do? 要是我们不能提前通知他，那该怎么办呢？ I'll come provided I am well enough. 只要我完全恢复，就来。 1.If a man __ succeed, he must work as hard as he can. A will B. is to C. is going to D. should 2._____,I believe, and you will find Tom is very outgoing. B. One talk with the student D. If you have a talk with the student 3.We’ll go to Paris for our holiday ____ it isn’t too expensive. A. except B. provided C. so far as D. unless 4.____more volunteers are needed, I think you still have a chance. A. Given B. To give C. Given that D. Giving 5.--CouldI use yours? B. now that C. if only D. even though A．bring B．bringing C．brought D．being brought 7.None knows if _______ that boy, but if _______ him, her parents will be disappointed. A.she will marry, she will marry B. she marries, she marries C. she will marry, she marries D. she marries, she will marry 8.--Shall Mary come and play computer games? --No,_______ she has finished her homework. A. when B. if C. unless D. once 9.--Would you mind my sitting here with you? --No,______ you aren’t too noisy. A. when B. if C. unless D. assoon as 10.Do you know if he _______ back next week? If he _____ back, please let me know. A. comes, will come B. will come, comes C. comes, comes D. willcome, will come 【答案与简析】BBBCC CCCBB 。 8.此句为省略句，答句句首的 No 表明其后省略的是一个否定句，全句补充完整为：Shecan’t play computer games unless she has finished her homework. 11.bring…under control把……控制下来，此处用brought表被动。 【特别警示】be to do sth用在条件句中表示'如果要想.....' 【必背典例】If we are to develop the world successfully, we mustmake sure that everyone is able to take part in the new world we create. 如果我们想成功地推动世界的发展，我们就必须确保每个人都能加入到我们创造的新世界里来。 |
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来自： 花好月圆sb3rxi > 《高中英语》
