《高中语法加油包》8情态动词pdf

1、 1 情态动词情态动词 can 的的基本基本用法用法 用法用法 例句例句 1. 表示能力，意为“能，会” 根据需要可用于各种句型 he can swim, but i cant. 2. 表示请求、许可，意为“可不可以” 相当于 may 常用与一般疑问句 can you go with me? 3. 表示怀疑、猜测，意为“可能” 常用于否定句和疑问句中 li hua cant be in the classroom. can this be true? 情态动词 can 的基本句式： 肯定句：主语+can+动词原形+其它. 否定句：主语+cannot (cant) +动词原形+其它. 一般疑问句

2、：can+主语+动词原形+其它? 【即学即练】 1. jack, _ you ride a bike? yes, i can. (北京中考) a. can b. may c. need d. must 2 【参考答案】a，表示询问能力“你会不会骑自行车？”，故选 a。 2. may, _ you go shopping with me? sure. (吉林松原八年级期末) a. can b. do c. need d. must 【参考答案】a，表示请求“你可不可以和我一起去购物呢？”，故选 a。 3. _ i help you, sir? yes. i want a t-shirt. (山东

3、济南八年级期末) a. should b. can c. must d. would 【参考答案】b，表示请求允许“有什么我能帮到您吗？”，故选 b。 4. can you go to the concert with me? _, but i am too busy today. (四川简阳八年级期末) a. sorry, i cant. b. id love to. c. of course. d. yes, i can. 【参考答案】 a， 根据句意 “但是我今天太忙了” 可知前一句应该是否定回答，故选 a。 情态动词情态动词 should 的基本用法的基本用法 用法 例句 1. 表示劝

4、告或建议，意为“应该” you should give up smoking. 2. 表示命令或要求，意为“应该” you shouldnt fight with your classmate. 3. 表示推断，意为“应该” 、 “可能” they should be there by now, i think. 4. 表示说话人的感情，如惊讶、愤怒、失望等 why should i go? 情态动词 should 的基本句式： 肯定句：主语+ should+动词原形+ 其他 否定句：主语+ shouldnt+ 动词原形+ 其他 一般疑问句：should+主语+动词原形+ 其他? 【即学即练】

5、 1. as middle school students, we_ be afraid of difficulties if we want to make our dreams come true. (哈尔滨中考) a. must b. shouldnt c. need 【参考答案】b，表示劝告 “我们不应该害怕困难” ，故选 b。 3 2. i dont care how other people feel. well, in fact you _. (内蒙古满洲里市模拟卷中考) a. might b. could c. would d. should 【参考答案】d，表示建议“事实上，

6、你应该这样做” ，故选 d。 其他常见情态动词的用法其他常见情态动词的用法 1. 情态动词情态动词 must 与与 have to 情态动词情态动词 must 的基本用法的基本用法 用法 例句 (1) 表示义务、命令或必要，意为“必须” mustnt 表示禁止， 意为 “不许、 不可以” everyone must attend the lecture. you mustnt lend it to others. (2) 表示推测，意为“一定” 一般用于肯定句 the light is still on, so he must be at home. (3) must 开头的疑问句： 肯定回答

7、用 must 否定回答则常用 neednt(不需要，不必)，相当于 dont have to must i finish the project today? no, you neednt. 情态动词情态动词 have to 的基本用法的基本用法 用法 例句 (1) have to 作为情态动词，意为“必须、不得不”，侧重于客观上的必要 you have to wear sports shoes for gym class. (2) 基本句式结构： 主语have to动词原形其他. 主语dont动词原形其他. do主语have to 动词原形其他? tony has to play the g

8、uitar every afternoon. nick doesnt have to wear a uniform. do you have to stay at home on weekends? 情态动词情态动词 must 与与 have to 的区别的区别 (1) must 表说话人的主观看法， have to 表客观需要 i must leave at six today. i have lost my pen, so i have to buy one. (2) must 只有一种形式 i thought i must go there. he had to look after h

9、is sister 4 have to 有更多的形式：have to, has to, had to, will have to 等 yesterday. 【经典例题】 must i go to medical school and be a doctor like you, dad? no, you _,son. youre free to make your own decision. (山东省临沂市中考模拟) a. cant b. mustnt c. shouldnt d. neednt 【参考答案】d，must 开头的疑问句，否定回答常用 neednt，故选 d。 2. 情态动词情态动

10、词 may 用法 例句 (1) 表示请求、许可，意为“可以” 否定回答用 mustnt 或 cant，不用 may not，意为“不可以，不许” may i go now? yes, you may. no, you mustnt / cant. (2) 表示可能性不大的推测，意为“可能，也许” where will he go? he may go to the cinema. im not sure. (3) 表示祝愿 may you succeed! 注：might 为 may 的过去式，比 may 更加委婉 3. 情态动词情态动词 need 用法 例句 (1) need 意为“需要；必

11、须”，常用于否定句 you neednt come to school so early. (2) need 还可以用在一般疑问句中 肯定回答用 must 否定回答用 neednt need i stay here any longer? yes, you must. no, you neednt. 【即学即练】 1. must we take any medicine to prevent the flu? no, you _. you can drive lots of water and have a rest. (重庆八年级期末) a. have to b. mustnt c. can

12、t d. neednt 【参考答案】d，must 开头的疑问句，否定回答常用 neednt，故选 d。 2. is john coming by train? he should, but he _ not. he likes driving his car. (江苏南通八年级期末) 5 a. may b. must c. could d. need 【参考答案】a，根据句意“他应该，但是他可能不会” ，可知表示可能性不大的推测，故选 a。 3. whose book is this? i think it _ jims. look! his name is on it. (重庆八年级期末) a. cant be b. must be c. can b