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1、专题八情态动词和系动词考点一 情态动词情态动词用法举例can could表示许可(相当于may)No one can smoke in the hospital. 表示能力“能、会”Can you go there with me? 表示猜测(常用于否定句, cant意为“不可能”)Theres no light onthey cant be at home. may might表示猜测, 意为“可能”She may be here tomorrow. 表示许可, 意为“可以”You may go now. 表示祝愿, 意为“祝”May you have a good time! must表示
2、主观看法“必须、应当”We must love our country. 表示很有把握的推断, 意为“一定”The man must be a doctor. have to表示客观需求“不得不”It rained heavily. We had to stay at home. need表示需要、必须(常用于否定句和疑问句)You neednt come next time. should表示义务或责任, 意为“应该”You should study hard. would表示建议、意愿或请求Would you like a cup of tea? 表示猜测, 意为“大概”That woul
3、d be true. 【语法串记】情态动词的用法歌诀情态动词两要点, 动词原形跟后面, 说话语气较委婉。can表“能力”may“许可”, must“必须”“推测有把握”。should“应该”would“愿”, have to“被迫”表客观。【拓展迁移】1. 以may 开头的一般疑问句的否定回答常用 mustnt或cant, 表示“不可以”、 “禁止”等意思。如: May I take the book to my friend? 这本书我可以带给我的朋友吗? No, you mustnt/cant. 不, 不可以。2. 以must开头的一般疑问句的否定回答常用neednt或dont have
4、to, 而不能直接用mustnt回答。如: Must she finish her homework now? 她现在必须完成作业吗? No, she neednt. /doesnt have to. 不, 不必要/没必要。考点二 系动词种类例词例句表状态am/is/are(是); keep/stay(保持)等We are in Grade Two this year. 表“感觉”look(看起来); feel(摸起来); smell(闻起来); sound(听起来); taste(尝起来)等The story sounds interesting. 表“变化”become/get/grow/
5、turn(变得)等He feels sorry and his face turns red. 【拓展迁移】系动词后面常跟形容词、名词等作表语; 系动词没有被动形式, 也不能用于进行时态。【语法串记】 连系动词速记我们可把左栏里的系动词归纳为“三是两保持, 起来五个, 变了四个”。【练真题】一、情态动词(A)1. (2021海南中考)How long can I keep these books? According to the library rules, you _return them within 7 days. A. mustB. mightC. could(C)2. (2021乐
6、山中考)Could I ride an electric bicycle to school, Mr Wang? No, you_. Students under the age of 16 arent allowed to ride electric bicycles. A. couldntB. neednt C. cant(A)3. (2021吉林中考) Whose dictionary is this? It_be Jeffs. Look! His name is on Page One. A. mustB. needC. cant(C)4. (2021绥化中考)We_have a gr
7、aduation ceremony next week, but Im not sure. A. mustB. needC. might(B)5. (2021包头中考)Hi, Carl! Im leaving for Chengdu this weekend. Cool! But I _get away until the end of July. A. shouldntB. cantC. needntD. mustnt(A)6. (2021北京中考)Sam, _I join you in the community service? Of course you can. A. can B.
8、mustC. should D. need【明策略】一、三步选出情态动词Step 1: 明确选项含义, 注意选项间的差别; Step 2: 观察题干语境, 判断是观点态度还是推测; Step 3: 作出合理判断。(1)如果是观点态度: 表能力用can, 表许可用may, 表必须用must。(2)如果是推测: 断然否定用cant; 犹豫不决拿不准用may或might; 表示肯定用must。【练真题】二、系动词(C)1. (2020天门中考) May I have some more chicken? It _so delicious. A. feelsB. smellsC. tastesD. s
9、ounds(B)2. (2020新疆中考) Look, Cindy. The flowers in our classroom come out in one night. Thats fantastic! They are beautiful and colorful. They _nice. A. smellsB. smellC. sounds D. sound(A)3. (2021河北中考)The trip_really exciting to me. How I wish to go! A. sounds B. smells C. tastesD. feels(C)4. (2020襄阳
10、中考) How does the banana milk shake _? Delicious. Id like to have another glass. A. lookB. smellC. taste D. sound(C)5. (2020云南中考) Dreams are powerful and they can drive you to work harder and become _than before. A. good B. well C. better D. best 【明策略】二、系动词解题关键点1. 明确系动词后跟形容词作表语; 2. 熟记各感官动词的准确含义; 3. 连系动词不能用于进行时和被动语态; 4. look, smell, taste等词, 既可作连系动词, 又可作实义动词。作连系动词时后接形容词作表语, 作实义动词时要用副词修饰。关闭Word文档返回原板块