2021高三统考外研英语一轮（经典版）学案：专题5　连词和状语从句

专题五　连词和状语从句1.(2019·全国卷Ⅱ，67)I work not because I have to, ________ because I want to.答案：but　not ... but ... “不是……而是……”。2．(2019· 天津高考，13)Tom is so independent that he never asks his parents' opinion ________ he wants their support.答案：unless　根据语境可知，这里用从属连词unless引导条件状语从句。3．(2018·天津高考，4)Let's not pick these peaches until this weekend ________  they get sweet enough to be eaten.答案：so that　句意：到本周末我们再采摘这些桃子，这样吃起来才够甜。表示“为了，以便”，用so that。4．(2018·北京高考，2)________ we don't stop climate change, many animals and plants in the world will be gone.答案：If　句意：如果我们不阻止气候变化，世界上的许多动植物将会消失。表示条件，用If。5．(2017·北京高考，22)—Peter, please send us postcards ________ we'll know where you have visited.—No problem.答案：so　根据句意“请给我们寄明信片”可知，后半句应表达“以便我们知道你游览过的地方”，故用so “以便，为了”。6．(2017·北京高考，25)________ birds use their feathers for flight, some of their feathers are for other purposes.答案：Although　句意：尽管鸟儿用羽毛飞翔，但是有些鸟儿的羽毛还有其他用途。用although引导让步状语从句。7．(2017·江苏高考，23)Located ________ the Belt meets the Road, Jiangsu will contribute more to the Belt and Road construction.答案：where　be located in＋地点名词，表示“位于……”，本句中应用where引导地点状语从句，意为“在……地方”。8．(2019·全国卷Ⅰ，短文改错)Suddenly a football fell just in front of me but almost hit me. __________________________________________________________________答案：but→and　“一个足球正好落在我面前”与“差点儿打到我”之间是顺承关系，故用并列连词and。9．(2019·全国卷Ⅱ，短文改错)When I studied chemistry in high school, I reconsidered my goal or decided to be a doctor.__________________________________________________________________答案：or→and　reconsidered和decided这两个动作是递进关系，故or改为and。 10．(2018·全国卷Ⅱ，短文改错)The games my parents taught me where I was a child turned out to be very useful later in my life.__________________________________________________________________答案：where→when　引导时间状语从句，用when。并列连词关系连词用法例句表示并列and; both ... and ...; not only ... but also ...; neither ... nor ... 在否定句中列举成分不用and用or。有时也可以用and no来表示①He can't read or write.②There's no air and no water there.在“祈使句＋and/or＋简单句”中，祈使句表示条件，简单句常用将来时。or表示“否则”①Work hard, and you'll succeed.②Hurry up, or you'll be late.not only ... but also ... 和neither ... nor ...连接两个并列成分。如果连接两个主语，谓语动词遵循“就近原则”，即与离它最近的主语在人称和数上保持一致Not only you but also he is a top student.表示选择or; not ... but ... ; either ... or ... 当either ... or ... 和not ... but ... 连接两个并列主语时，谓语动词遵循“就近原则”Either you or Ann is going to the library.续表关系连词用法例句表示转折或对比but; yetyet可以与although/though同时用在一个主从复合句中，而but不可以Though he is a little boy, yet he knows a lot.表示因果for; sofor补充说明理由；so表示结果It must have rained last night, for the ground is wet.从属连词状语从句引导词例句地点状语从句where; wherever①I'll go wherever you say.②You should live with your parents wherever they live.让步状语从句though/although; even if/even though; while; whether  ... or ...; as; whatever/no matter what; wherever/no matter where; whoever/no matter who; whichever/no matter which; whenever/no matter when; however/no matter how①Although the task was hard, he overcame it finally.②While I like the car, I won't buy it.③Child as he was, he knew what was the right thing to do.④Whoever breaks the law, he will be punished.原因状语从句①because语气最强，回答why提出的问题②当原因是显而易见的或已为人们所知，就用as或 since③now that①Since everyone is here, let's have the meeting.②Now that you have all your equipment，we can get started.方式状语从句as; like; as if/as though①When in Rome, do as the Romans do.②She works hard as if she never knew fatigue.时间状语从句since; when; after; as; while; before; until/not ... until ...；as soon as/immediately/the moment/the instant; no sooner ... than .../hardly ... when ...; once; every time/each time; the first time; by the time①It is 3 years since you left school.②He rushed out of the classroom before I could stop him.③Hardly had we arrived at the station when the train left.④Once the plan is made, you should carry it out.⑤He had left by the time we reached home. 条件状语从句if; unless; as/so long as; on condition that; provided that; in case①Victory won't come to me unless I go to it.②So long as we look at things with a happy heart, we can be happy. 目的状语从句so that; in order that; for fear that①We got up early so that/in order that we could catch the first bus.②I arrived at the school early for fear that I missed the morning exercises. 结果状语从句so ... that; so that; such ... that①We got up so early that we caught the first bus.②He hadn't studied hard so that he failed in the exam.  比较状语从句as; as ... as ...; than; the more ... the more ...; more ... than ...①It's easier said than done.②The harder you work, the more progress you will make.③He is more diligent than clever.状语从句中的省略如果从句的主语与主句中的主语一致，或者从句中主语是it，且从句谓语含有be动词，那么，状语从句中的主语和be动词可以省略。如：Don't speak unless (you are) spoken to.While (I am) against what you said, I will still carry out the plan.If (it is) possible I will come to help you.He sat there, silent, as if (he was) angry.Once (it is) seen, it can never be forgotten.Be careful when (you are) crossing the street.Ⅰ.单句语法填空1．(2019·山东省济南外国语学校高三第一次月考)He had me stop and repeat the procedure two or three  times  ________     I grasped it. 答案：until/till　句意：他让我停止并且重复了两三次这个步骤，直到我掌握了它。根据句意可知填until或者till。2．(2020·湖北省孝感市第一中学高三年级月考)However, they have been testing to see if eating soil is safe for the body ________ if it could cause any side effects in the past few months.答案：or　句意：过去的几个月里，他们一直在测试吃土对身体是安全的还是可能导致任何副作用。分析句子可知，前后句为选择关系，故用连词or。3．________ you answer the questions carefully, you should do very well.答案：As long as/If/Provided that　句意：只要你认真回答问题，你应该能做得很好。as long as/if/provided that “只要”。4．WeChat is so appealing that ________ you are exposed to it, it's hard for you to get out of it.答案：once　句意：微信很吸引人，一旦你接触过，就很难摆脱。once “一旦”。5．________ the prices of household robots have come down, many consumers still can't afford them.答案：While/Although/Though　句意：尽管家用机器人的价格下降了，但是许多顾客还是买不起。while/although/though引导让步状语从句。6．I really don't know whether I can succeed in the final competition, ________ I will try.答案：but　句意：我真的不知道在决赛中能否成功，但是我会尽力。这里表示转折，故用but。7．Some pressure is good for you ________ it can help you to try harder.答案：as/because/since　句意：有些压力对你有好处，因为它有助于你更加努力。表示原因用as/because/since。8．If you want to work with the laptop computer outside, bring the charger ________ the battery runs down.答案：in case　句意：如果你想在室外使用笔记本电脑，带着充电器，以防电池没电。in case “以防，万一”，引导条件状语从句。9．________ you are 18 years old, hopefully you can become more independent.答案：Now that/Since/Because/As　句意：既然你已经18岁了，希望你能更加独立。设空处引导原因状语从句，故填Now that/Since/Because/As。10．(2019·江西省上饶县中学高三检测)After 40 years of reform and opening­up, China still has a long way to go ________   it becomes a “developed economy”．答案：before　句意：经过40年的改革开放，中国在成为“发达经济体”之前还有很长的路要走。由此可知，应填before，引导时间状语从句。Ⅱ.单句改错1．It may be popular, and you may also get others confused.__________________________________________________________________答案：and→but　由“be popular”和“get others confused”可知，前后两分句之间为转折关系，故用连词but。2．The people's life here has become interesting or colorful.__________________________________________________________________答案：or→and　此处表示“生活有趣且丰富多彩”，interesting与colorful是并列关系，且本句是肯定句，故用连词and。3．One day, I was cooking in the kitchen as the telephone rang.__________________________________________________________________答案：as→when　be doing ... when ...  “正在做……，这时……”，是固定句式。4．We need to get to the root of the problem after we can solve it.__________________________________________________________________答案：after→before　根据逻辑关系可知，在解决问题“之前”应该先找到问题的根源。故将after改为before。5．(2019·广东省高三“六校联盟”第一次联考)However your dream is, you can have it.__________________________________________________________________答案：However→Whatever　句意：无论你的梦想是什么，你都可以拥有它。whatever引导让步状语从句，意为“无论什么”，在从句中作表语，故把However改为Whatever。