八年级上英语5.8单元知识点...不要太复杂.就告诉我重点是什么就好.好心的可以告诉我用法哦~比如一单元的重点是频率...什么什么的..

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/03 07:39:18

八年级上英语5.8单元知识点...不要太复杂.就告诉我重点是什么就好.好心的可以告诉我用法哦~比如一单元的重点是频率...什么什么的..
八年级上英语5.8单元知识点
...
不要太复杂.
就告诉我重点是什么就好.好心的可以告诉我用法哦~
比如一单元的重点是频率...什么什么的..

八年级上英语5.8单元知识点...不要太复杂.就告诉我重点是什么就好.好心的可以告诉我用法哦~比如一单元的重点是频率...什么什么的..
新目标英语八年级上册第五单元语法重点:情态动词的疑问句:是指以情态动词开头的疑问句,它没有人称和数的变化.例如:can you come to my party?Yes,I can/No,I can't.Should he drink some water?Yes,he should/No,he shouldn't.回答此类疑问句时,肯定用yes+该情态动词的肯定式,否定用No+该情态动词的否定式,中间以逗号隔开.
附:各情态动词的肯定与否定式:can/can't,could/couldn't,may/mayn't,might/mightn't,should/shouldn't,ought/oughtn't,had better/had better not.
第八单元语法重点:一般过去时助动词开头的疑问句:是指以did,was,were等过去时助动词开头的句子,当回答以did开头的疑问句时,没有人称和数的变化,而当回答was,were开头的疑问句时,有人称和数的变化.例如:Did you go to the park?Yes,I did/No I didn't.Did she go to the park?Yes,she did/No,she didn't.Were you sleeping?Yes,I was/No,I wasn't.Was he watching TV?Yes,he was/No,he wasn't.Were they having a picnic on the grass?Yes,they were./No,they weren't.回答此类疑问句时,肯定用yes+适合该人称的助动词,否定用No+适合该人称助动词的否定式.中间以逗号隔开.注意:当用was或were开头的句子来提问时,其后要用动名词doing.附:各过去时助动词的肯定与否定式:did/didn't,was/wasn't,were/weren't.