Reading
A1-8 dfahg bca
B 1 To introduce China's wind power
2 Renewable energy refers to energy sources that are natural, continuous and large. This includes solar energy, wind energy, water energy,geothermal energy and certain biofuels.
C1 1-4 T T F F
3 Wind turbines are becoming more cheap to make
4 Solar and wind power will produce most of China's energy by 2050
C2 1 off the coast of Jiangsu,Fujian, and Guangdong.
2 Because China's coast is 18000 km long, and this means there is plenty of space for wind farms
3 Yes, I do. Because renewable energy sources can be better to protect the earth than “dirty energy”.
D1 offshore wind farms are cheaper, renewable and endless. Because wind power is a clean , renewable energy source and it is an endless supply of energy.
D2 1 Advantages：clean, renewable, endless, environmentally friendly, widely disturbuted.
2 Disadvantages：loe density, unstable, large regional differences
Vocabulary and grammar
A1-6 touch, washing machine,air conditioners, connect wires,in a way
B1-10 Can, can,May, can't, must,can,may not, mustn't, may, can't,
Listening and speaking
Omitted
More reading
A1 Electricity usually comes from a power station
2 Solar power comes from the sun
3 A hydroelectric power station make electricity from falling water
4 Electricity comes from to your home through wires
5 Some small electrical appliances, such as torch and mobile phones use batteries
B1-8 cabac bdd
地球一小时首先起源于2007年澳大利亚的悉尼，数以百万的人们关灯、关电器一小时。从那时起，地球一小时获得全世界广泛的支持。2019年，上百万来自180个国家的人们加入地球一小时。
地球一小时显示我们对地球的关爱，每个人都有能量改变世界，但这不是节约一小时的电，它告诉人们要保护我们的地球，这不仅是一年一小时，每天都应该这样。
一个强大的地球不仅对动物、植物有好处，对人类也是很重要的，我们向地球索求太多，现在它处于危险中，我们必须尽力保护它。
地球一小时是每个人为地球做点事情的一个机会，加入地球一小时，我们能创造一个更舒适的居住世界。
C1 1-5 one-tenth, moving , turn the person, lines, numbers
电视画面
电视画面欺骗你的眼睛，当你看一幅图时，你的大脑停留图片十分之一秒，然后你继续看，所以当你的大脑一秒停留十多幅图片时，就是把图片放一起作为移动的画面。你可以画同一个人的许多张图片，自己观察一下，这个人在笔记本的每一页上，然后你迅速翻页，这个人好像是移动的。
电视画面通过屏幕使用一系列的线条，线条改变图片每秒很多次并出现移动的图片，我们称这种电视为＂模拟电视＂。
现在有数字电视，没有线条，声音和图片都是数字的，当数字在数字电视上改变，唯一不同是旧图片、新图片之间的改变，所以它改变很快且图片声音很好。
C2 1 Yes,I do. Because television promotes the spreading of news
2 No, I don't. Watching TV is a good way for people to relax themselves
Writing
A1 Without electricity in our home,we will have no light and will not be able to cook or wash clothes.
2 Without electricity in our factories, machines will not be able to work any more
3 Without electricity in our cities,cars, trains will not be able to run and the city will be dark.
B1 to give light and heat
2 electricity makes life more convenient
3 it can cause fire accidents
4 It can also hurt or even kill people
5 we should always remember to be careful with it
6 we must not play with it
（潜龙家教谭老师录入译文，请您务必先自己做再核对答案，谢谢！） |
