（2019版）新人教版高中英语必修第三册Unit 5 语法精讲：情态动词表请求、指示或建议＆过去将来时 ppt课件.pptx

1、情态动词表请求、指示或建议语法精讲用法用法1 11. 发出指示或请求可以用can、could、may、might。用could/might 语气更加委婉，但答语不用 could/might。例：Could I come to see you tomorrow? Might I have a word with you? 发出指示或请求（1）2. 发出指示或请求还可以用will、would。常用于主语是第二人称的句子中。用法用法2 2例：Will you give him a message when you see him? Would you pass me the book, please

2、?发出指示或请求（2）3. 发出指示或请求还可以用shall。常用于主语是第一、三人称的句子中。用法用法3 3例：Shall we begin our lesson? Shall she sit here?发出指示或请求（3）典例精析典例精析提出建议可以用can/could、had better、should、ought to。例：You could pay a visit to him. Youhadbetter go there at once. You ought to obey your parents提出建议1. _ the boy wait outside or come in,

3、Mr. Black?解析：shall用来表示请求常用于主语是第一、三人称的句子中。语法填空。语法填空。考点追击考点追击Shall2. You had better (return) the book before he goes back.解析：had better表示“最好”，用来表提出建议，后面加动词原形。return过去将来时语法精讲：过去将来时用法用法常用于主句谓语动词为过去时态的宾语从句中。时间时间状语状语the next day (month/ year)，the following day(month/year)，soon等。意义意义过去某个时间看来将要发生的动作或存在的状态。用

4、法用法1 1(1) would+动词原形动词原形，常表示主观意愿的将来。例：1. He said he would come to see me. 2. He promised to his father he would not give up. 过去将来时的构成（1）用法用法2 2(2) was/ were + going to +动词原形动词原形，常表示根据计划或安排即将发生的事。例：1. She said she was going to start off at once. 2. It seemed as if it was going to rain.过去将来时的构成（2）还可表示

5、根据某种迹象来看，很可能或即将发生的事情。用法用法3 3(3) was/were about to +动词原形动词原形，表示说话的瞬间就会发生的动作。例：1. I felt something terrible was about to happen.2. He said that the train was about to leave.过去将来时的构成（3）用法用法4 4(4) was/were to +动词原形动词原形，表示过去某时间内计划/打算或一定要进行的动作。例：1. It was reported that another bridge was to be built. 2. S

6、he said she was to clean the classroom after school.过去将来时的构成（4）1. Wang Lin rang up to tell her mother that she will buy some books.解析：主句用一般过去时，宾语从句中用would+动词原形构成过去将来时。改错。改错。考点追击考点追击would2. The teacher asked Tom what he is going to be when he grew up.解析：主句用一般过去时，宾语从句中用was going to +动词原形构成过去将来时。wasBye-bye!