acad2018
课堂笔记及课后一练Unit 3
本单元常识点：
1、可以听懂、了解并会运用protectthe environment, plastic bag, don’t litter, keep the lawn clean and tidy, alow-carbon life, turn off the TV, be friendly等与环保有关的词组和短语。
2、温习安靖以Don’t,Let’s 等引导的祈使句；可以运用神态动词can,should，shouldn’t等谈论自个对节能环保的主意。
3、可以晓得太阳能、动能、化石动力的构成和作业原理，根究节能3R原则如何在往常日子中实施。
4、可以知道到人与天然调和同处的夸姣期望是咱们维护环境的初衷，然后树立低碳日子、节能环保的知道，并测验将其实施到实践日子中去。
课堂笔记Unit 3-lesson 9
短语：
１.World Earth Day 世界地球日
The World Earth Day is on April 22nd.世界地球日在4月22日。
２.protect the environment 维护环境
We should protect the environment .咱们大约维护环境。
３.go to work 去上班
When does your father go to work?你父亲啥时分去上班。
４.by car/bus/subway乘坐小轿车／公共轿车／地铁
I go to school by car/bus/subway.我乘坐小轿车／公共轿车／地铁上学。
５.stop doing sth.中止做某事
The baby is sleeping,please stop talking.婴儿正在睡觉，请中止说话。
６.plastic bag 塑料袋
My mother goes shopping with a plastic bag.我母亲拿着一个塑料袋去购物。
７.in public places 公共场合
Don’t talk loudly in public places.不要在公共场合大声喧闹。
８.by the roadside 在路旁边
The boy is sitting by the roadside.这个男孩正坐在路旁边。
９.keep sth. clean and tidy坚持某物清洗和规整。
Please keep your room clean and tidy.请坚持你的房间清洗和规整。
课后一练Unit 3-lesson 9
请测验说一说往常日子中咱们可以如何进行环保。
【课后一练答案】
1、We should stop using plastic bags. We should pick up litter, reusesomethings, plant more trees, keep off the grass, use green energy and so on.
课堂笔记Unit 3-lesson 10
语法祈使句专项说明
１.啥是祈使句:用于表达恳求，指令，?担妫柚沟鹊挠锞浣凶銎硎咕洹?/span>
２.祈使句的类型：必定祈使句，否定祈使句
必定祈使句：
（１）Be型祈使句：Be+表语。例句：Be careful ! 留心！
（２）Do 型祈使句：实义动词＋宾语（＋其他）例句：Ｏpen the window!翻开窗户！
（３）Let型祈使句：Let+宾语＋动词原形（＋其他）
例句：Let’s clean the room!让咱们打扫屋子吧！
否定祈使句：
（１）Be型祈使句：Don’t be+表语。例句：Don’t be lazy! 不要懒散！
（２）Do 型祈使句：Don’t+实义动词＋宾语（＋其他）例句：Don’t close the window!不要关窗户！
（３）Let型祈使句有两种否定方法：Let+宾语＋not+动词原形（＋其他）
例句：Let’s me not read it! 不要让我读这个！
Don’t let+宾语＋not+动词原形（＋其他）例句：Don’t let her go there! 不要让她去那儿！
课后一练Unit 3-lesson 10
请测验说一说你晓得的低碳日子方法有
哪些。
【课后一练答案】
Let’s go to school by subway. Please don’t leave thewater running when you’re brushing your teeth. We should print on both sides ofpaper. We can go to school by bus. Remember to turn off the TV when we aren’t watching.
课堂笔记Unit 3-lesson 11
课后一练Unit 3-lesson 11
请测验说一说往常日子中咱们为啥要维护动物、怎么维护？
【课后一练答案】
Animals live togetherwith us on the earth. We should be friendly to animals. They help us a lot.They bring us happiness. We should protect animals by living a low-carbon life.Many wild animals are in danger, because the environment that they are livingin has changed a lot, becoming worse and worse. What’s more, we shouldn’t buythings made of fur, skin, or teeth. When the buying stops, the 
killing stopstoo.
课堂笔记Unit 3-lesson 12
课后一练Unit 3-lesson 12
画一画风力机，然后告诉你的父母或兄弟它是如何发电的。
【课后一练答案】
When things move very fast such as thewind, they generate a lot of energy. A wind turbine has blades. The blades turnin the wind to drive a generator to make electricity.
