Unit 4 grammar课件2022-2023学年牛津译林版九年级英语下册

Grammar Unit 4 Life on Mars 1 1 Revision It is hoped that all over again over and over again at the speed of compared with connected to 希望/人们希望...... 再，重新 一次次，一次又一次 以......的速度 与……比较 连接到…… Read the sentences and pay attention to the underlined parts. 1. She started to learn drawing when she was 7. She started to learn drawing at the age of 7. 2. Are you sure that space travel will be fast? Are you sure about the fast speed of space travel? 3. On Mars you might see people who wear special boots. On Mars you might see people in special boots. 简单句和复合句之间的转换（二） 复合句变简单句 我们可以用“介词短语”把状语从句转换成简单句；也可以用“介词”把宾语从句和定语从句转换成简单句。 Read the sentences and pay attention to the underlined parts. 1.He saw that the robot was making breakfast. He saw the robot making breakfast. 2.He found that his flat was in a complete mess. He found his flat in a complete mess. 3.He thinks that it is too much trouble to own a robot. He thinks it too much trouble to own a robot. 5 1. 用“介词短语”把状语从句转换成简单句 带有年龄的状语从句可以用词组at the age of的句子转换； 由because引导的原因状语从句可以用because of 转换； 由if not引导的条件状语从句可以用without转换； 由when / after / before / while / since / until引导的时间状语从句可转化为when / after / before / while / since / until + doing…。 I can’t pass the exam if you don’t help me. I can’t pass the exam without your help. He was late for school because it rained heavily. He was late for school because of the heavy rain. They went home after they finished their work. They went home after finishing their work. Marie Curie moved to Paris when she was 24. Marie Curie moved to Paris at the age of 24. You should put them back after you use them. You should put them back after using them. Turn off the light before you leave. Turn off the light before leaving. We didn't go to the park because it rained. We didn't go to the park because of the rain. Practice 2) 用介词把宾语从句转换成简单句 某些动词后的宾语从句，可以用介词of / about将其形式简化。 Please remind him that we are leaving at six. Please remind him of leaving at six.