2021届高考英语人教版一轮创新教学案：第2编专题五连词和状语从句
展开专题五 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，但是它们的一些羽毛还有其他用途。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.
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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.
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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.
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答案：where→when 引导时间状语从句，用when。
并列连词
从属连词
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，且从句谓语含有系动词，那么，状语从句中的主语和系动词可以省略。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其他任何的副作用。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.
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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.
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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.
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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.
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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.
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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。
