中考英语语法复习方案6《情态动词》
【趋势解读】
情态动词是各地中考的必考点,主要考查情态动词的基本用法,考题贴近生活实际,体现语言学习的实用性。要求考生熟知情态动词的基本特点,掌握常见倩态动词的各种用法。考生答题时需认真体会语境,揣摩说话者的语气强弱和态度。难度适中,一般分值在1}2分。预计中考关于本专题知识命题趋势如下:
(1)各地中考情态动词考查的热点为表推测、许可及义务含义的情态动词,尤其是对must三种用法的考查是重中之重。
(2)自主招生考试的重点将关注情态动词表示推测的用法及情态动词与现在完成时连用。分值为1~2分。
【思维引导】
精彩笔记1 表示能力的情态动词
注意:表示具有某种能力的还有半情态动词be able to,但是和can有区别,can只有现在式和过去式。be able to可以有更多的时态。
核心题根1 (1) I'm going to Europe on vacation together with John if I find the money.
A. can B. might C. would Dexit是什么意思英语. need
思路点拨:①考查情态动词表示能力。
②句意:如果我现在能有足够的钱,我将和John一起去欧洲度假。
③ can“能,会”,表示体力、智力、技能方面的能力;might“可能,可以”,表示可能性推测;would“愿意”;need“需要”,表示必要。
(2)—No one be compared with Yao Ming in playing basketball.—Oh,you are really his big fan.
A. can B. need
C. must D. might
思路点拨:①句意:—在打篮球方面没有人能和姚明相比。—你真是他忠实的粉丝。
②此处应填表示能力的情态动词。can“能,会”,表示能力;need“需要”;must“必须”,表示义务;might“可以,可能”,表示请求许可或可能性的推测。
同类变式1 (1) I follow you. Would you please repeat it?
A. can't B. mustn't
C. needn't D. shouldn't
(2)Hate cannot drive out hate; only love do that.
A. can B. must C. should
(3) The police still haven't found the lost child, but they are doing all they .
A. can B. may
C. must D. should
知识归纳
(1) was/were able to do sth相当于succeeded in doing sth,“表示过去有能力做并且成功地做了”。
(2)could have done表示过去有能力做但未做。
例如:
The fire spread through the supermarket quickly, but everyone was able to get out.尽管大火迅速地蔓延到整个超市,但是每个人都逃出来了。
I could have worked out the problem, but I was too nervous.我本来可以解出这道题,但是我太紧张了。
精彩笔记2 表示义务责任:have to/must和Should/ought to
1.must/have to和needn't的用法
(1)现在或将来必须做的事:must/have to do sth
如:Ori must/has to wear a School uniform. Ori必须穿校服。
(2)现在或将来不必做的事:don't have to do sth; needn't do sth=don't need to do sth
2.should和ought to的用法
(1)should和ought to表示义务、责任,意为“应该”。表示责任义务时语气由强到弱排列应该是must>ought to>should,即ought to的语气强于should,弱于must。
(2)与不定式完成体连用时表示对“本应该做而没有做某事”的责备。
例如:You should(=ought to)90 to class right now.你应该立即去上课。
Should I open the window? 我应该打开窗户吗?
核心题根2-1 All passengers go through safety check before they take a plane.
A. can B. may
C. must D. ought
思路点拨:can“能,会”,表示能力;may“可以”,表示请求允许;must“必须”,表示必须做;ought“应该”,表示义务。根据句意“乘飞机之前所有的乘客必须通过安检”,可推断此空应填表示“必要性”的情态动词。
(2)I worry about my weekend—I always have my plans ready before it comes.
A. can't B. needn't
C. shouldn't D. daren't
思路点拨:① can't“不能,不会做”;needn't“不必,没有必要做”;shouldn't“不应”;daren't“不敢”。
②根据句意“我不必担心周末一到周末之前我总会做好计划的”,可推断worry之前应填“没有必要”。
同类变式2-1 (1)改写以下句子,用must或have to来代替斜体印出的部分。
①It will be necessary ,for you to see a doctor.
②Is it necessary for you to make so much noise?
③She said it would be necessary for us to stay here.
④It is necessary for me to have some help.
⑤it was necessary for him to go out last night.
(2)If you smoke,please go outside.
A. can B. may C. must D. might
(3) It's quite warm here; we turn the heating(暖气)on yet.
A. couldn't B. mustn't C. needn't D. wouldn't
知识归纳
(1) must/have to必须,一定要。have to有人称、数和时态的变化;must没有变化。如:
He had to see the dentist yesterday.他昨天不得不去看了牙医。
Ori will have to stay at home tomorrow.奥利明天将不得不待在家里。
(2)must强调说话人的主观看法,have to强调客观需要。
(3)不要混淆了mustn't与needn't和don't have to: mustn't是强调“禁止做某事”,“没有必要做”用needn't或don't have to表不。
核心题根2-2 (1) As middle school students, we be afraid of difficulties if we want to make our dreams come true.
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