课件20张PPT。Unit
5Oxford EnglishModule 3 Natural elementsWaterPeriod 2Reading (2)
More practice AC2 Complete Dora’s diary below with the words from the box.1Checking-upvoiceturnoffjourneydroppedaddedtovaluableComprehensionwas dirtystarts thereis valuable2Vocabulary studybe on开着;上映,上演be offturn off 关闭turn on 打开turn off the tap
=
turn the tap offitadd…to…
把……加入……chemical
n. 化学药品(常用复数形式)
adj. 化学的3BrainstormingWhy did the drop of water tell Dora not to waste or pollute it?Do you think water is valuable? Why?4Group discussion5A quizA quiz about water 1. About ________ of the human body is water.
50% B. 30% C. 70%
2. About ________ of the Earth is water.
80% B. 75% C. 60%
3. Most of the water in the world is ________.
A. fresh water B. drinkable C. undrinkable
4. If water drips from the tap every 10 seconds, we will waste about ______ litres of water a year.
A. 215 B. 315 C. 415
5. Having a shower instead of a bath can save up to ______ litres of water a week.
A. 400 B. 300 C. 2006More practiceMore Facts about WATER 1. About ________ of the human body is water.
50% B. 30% C. 70%
2. About ________ of the Earth is water.
80% B. 75% C. 60%
3. Most of the water in the world is ________.
A. fresh water B. drinkable C. undrinkable
4. If water drips from the tap every 10 seconds, we will waste about ______ litres of water a year.
A. 215 B. 315 C. 415
5. Having a shower instead of a bath can save up to ______ litres of water a week.
A. 400 B. 300 C. 200More exercisehumandrinkablegroundwatertapshowerbathWhat do the numbers about water tell us?Group discussionHHomework跟录音,流利地朗读课文。
以第一人称或第三人称描述水的循环过程。
以“Water is valuable”为主题,写一篇短文。
思考节约用水的方法,下一节课进行讨论。
完成《练习册》第66页Vocabulary B和第74至75页Reading B,C的练习。