Unit 4 How’s the weather today？Lesson 24 Revision 课件（21张PPT）

课件21张PPT。人教（精通）英语四年级上册Unit 4 How’s the weather today? Play a guessing game.How’s the weather?
It’s…Play a guessing game.How’s the weather?
It’s…Listen and number.Listen:What are they talking about?They’re talking about the______.weatherRead and put the weather into the right orders.（）rainy （）hot （）snowy
（）sunny（）cold12345Read picture1, then answer:How’s the weather today?It’s hot today!soListen picture2, then fill in the blanks:________the weather today?It’s so ______!How’scoldGuess:Next weather will be:____What will Mimi do??Read picture3, answer questions:1.The weather is ______.2.What does Mimi do?A. snowy B. rainy C. windy BShe uses to water（浇） Micky.Look at picture4, listen and feel,
then read after it.What? It’s sunny.Really? Is it sunny? How’s the weather?It’s snowy!Read picture5, then answer:Look at picture6, listen then guess what Micky will say:How’s the weather today?Enjoy the story.1. Look at the story.2. Read the story loudly. 3 cards3. Act the story.
Speak fluently(流利的) and vividly(生动地). 5cards
Speak fluently(流利地说), and act vividly(生动
地表演)，and enrich the story(丰富故事). 7cardsYour time.Act story.全球气候变暖
global warming
全球气候变暖是一种和自然有关的现象。由于人们烧石油，煤炭等，产生大量二氧化碳，即温室气体，能强烈吸收地面辐射中的红外线，导致地球温度上升，即温室效应。 而当温室效应不断积累，导致温度上升，造成全球气候变暖。全球变暖会使全球降水量重新分配、冰川和冻土消融、海平面上升等，不仅危害自然生态系统的平衡，还威胁人类的生存。 另一方面，温室效应造成了空气流动减慢，雾霾无法短时间被吹散，造成很多城市雾霾天气增多，影响人类健康。 汽车限行，暂停生产等措施只有短期和局部效果，并不能从根本上改变气候变暖和雾霾污染。Protect the environment,
start with the drip.
保护环境，从点滴做起。Let’s love the nature and protect it.让我们爱护并保护大自然。Homework: Make a storybook and tell the story to your parents.
2. Tell your parents to protect environment.It’s small.It’s big.It’s big.so（如此，那么）