Unit 8 Welcome to the unit--Grammar知识点汇总 2022-2023学年牛津译林版英语八年级下册

Unit 8 A green world Welcome to the unit--Grammar知识点汇总 Welcome to the unit 1. Trees are good for us. 树木对我们有好处。 2. I like digging in the garden.我喜欢在花园里挖坑。 dig 作动词，意为“挖(洞，坑等)”，过去式和过去分词都是 。 dig for挖掘，为...而挖 dig out挖出 They used to dig for wild vegetables.  If you want to plant a tree , you should dig out a hole first.  【举一反三】 1）Jimmy_______ (dig) a hole in the garden when I went to see him. 2）A strange old man was seen _____ in the garden the whole morning. Who allowed him  _____ the garden ? A.digging, to enter B. to digging, entering  C. dug, entering into D. to dig, entering  3. Are you serious? 你是认真的吗? serious作形容词，意为“认真的，严肃的；严重的”。 be serious about sb/sth 对某人/某事是认真的 be serious about doing sth对做某事认真 You should be serious about your work. Is he serious about wanting to be a doctor? This is a serious illness. 4. We can reduce air pollution by riding bicycles. 我们可以通过骑自行车来减少空污染。 reduce作动词，意为“减少,降低”。 reduce sth by... 把某物减少了.... reduce sth (from...) to... 把某物（从...）减少到... We have reduced costs by 20% over the past year. The boss reduced the number of the workers from 40 to 20. 5. We can save energy by turning off the lights when we leave a room.我们可以通过离开房间时关灯来节约能源。 turn off 关上(电器 .水龙头等) turn on打开(电器、水龙头等) turn up (把音量等))调大，调高 turn down (把音量等)调小，调低 turn into变成;使变成 turn around转过身 6. We can protect the environment by recycling waste. 我们可以通过回收利用废物来保护环境。 protect…from./against... 保护...不受... (侵害) 7. What should we do to live a green life. 我们应该怎么做来过绿色的生活。 live a ...life过着...（样）的生活 （=lead a ...life） 8. My dad used to drive me to school, but now we take the underground. 我爸爸过去常常开车送我去学校，但是现在我们乘地铁。 9. More and more families own cars and this causes serious air pollution. cause作动词，意为“导致”，相当于lead to；作名词，意为“理由，原因”。 cause sb. to do导致某人做某事 cause sb. sth. 给某人造成… The project caused him a lot of trouble. The bad weather caused the plants to die. 10. It’s wise for people to choose public transport or ride bicycles. 人们选择公共交通或骑自行车是明智的。 Reading 1. In Switzerland, things li