青少版新概念2b-unit21课件

1、Welcome to Sunshine Baby !,Unit 21,The weather forecast,Happy Birthday,I will share my birthday cake to my dear friends.,把火熄灭最快的方法使什么？（字） 第九次结婚，打一城市名？（打一个地名） 人在园中打一字？（字） 一个最小的正整数，除6余5，除5余4，除4余3，除3余2.（一个数字） 答案1、火子上家一横 答案2、巴黎 答案3、囚 答案4、59,猜一猜,weather(天气),sunny（晴朗的）,rainy（下雨的）,dry（干燥的）,wet（湿的）,cold（冷的）,hot（热的）,warm（暖和的）,cool（凉爽的）,snowy（下雪的）,foggy（多雾的）,windy（刮风的）,What will the weather be like tomorrow?,It will be rainy.,cloudy,sunny,snowy,rainy,New words and expressions:,forecast forecaster announce

2、r blow air,预报 预报员 播音员 吹 空气,New words and expressions:,gradually rise fall outlook Celsius degree,逐渐地 上升 下降 展望 摄氏的 度数,On Monday temperatures will rise to 22 degrees Celsius in the afternoon. In the evening temperatures will fall to 10 degrees Celsius.,The wind will blow from the south west. Rain will come in gradually from the south west.,north,south,west,east,south west,south east,north east,north west,我们除了用“be going to动词原形”可以表示一般将来时外，我们还可以用“will动词原形”来表示一般将来时,will 引导的一般将来时:表示将来发生的动作或存在的状态，最基本的结构

3、：will + 动词原形 “主谓（宾）句型”的一般将来时： 肯定句：主语+ will +动词原形+（宾语）+其他 Some day people will go to the moon . 否定句：在will 的后面加not即可。will not 可缩写为 wont They wont use books . 一般疑问句：把will 提到句子主语之前，结尾变问号。 Will students go to school in the future ? 特殊疑问句：特殊疑问词+will +主语+动词原形+其他？ What will your dream school have ?,“There be”句型的一般将来时 肯定句： There will be +名词+其他成份 注意：无论后面加单数名词或复数形式，be都必须用原形。 There will be only one country. 否定句：在will后面加not. There wont be only one country. 一般疑问句：把will提到there之前。 Will there be only one country

4、? Yes, there will. / No, there wont.,注意：在口语中，所有人称都可以用will.,一般将来时的主要用法：,1、表示将来某一时刻的动作或状态： We will come to see you the day after tomorrow. There will be a wonderful show next week. 2、表示将来某一段时间内经常的动作或状态： The students will come and work in the lab once a week. We will come and work in this factory every year.,今天晚上我将会打电话给你。 将来，学生将会使用电脑学习。 我们今天下午没有空。 她不会听我的.,I will call you this evening.,Students will use computers to learn in the future,We wont be free this afternoon.,She will not listen to me.,当天气变冷

5、的时候，鸟类不会飞去南边 我想下个夏天北京的天气将会非常热。 他将会使用他的笔 将会有大雨和大风天气。,The birds wont fly away to the south when the weather turns cold.,I think it will be very hot in Beijing next summer.,He will use his pen,Will there be heavy rain and strong winds?,will句式总结:,一般将来时两种基本句式的区别：,，”be going to+动词原形”和“will+动词原形”这两种表示将来时态的结构没什么区别。但在现代英语中，特别是在口语中，表示将来时多用“be going to+动词原形”这一形式。另外他们主要区别在于“be going to+动词原形”表示一个事先考虑好的意图，相当于“打算、计划、准备”，而will则表示未经事先考虑的意图。,Functional Practise：,.hope that you a good time this evening. A.have B.a

6、re having C.will have D.has 2.Look at those big black clouds. It rain.Lets hurry. A.must B.will C.would D.is going to,注意：will与be going to的区别，be going to可以表示明显将要发生的情况,3.There a basketball match this afternoon. A.will have B.will be C.has D.have 4. We to the park if it is fine tomorrow. A.will go B.go C.goes D. to go,C,D,B,A,汉译英： 1.明天，我们学校将有场足球赛，我准备去看 .我打算和李明一起复习功课 .将来每个人都有一台计算机 .美美正在做饭今天晚上她要把饭带到晚会上去 .我理想的学校将有宽大的教室和图书室 .学生将在电脑上与老师对话 .将来有学校吗？不，没有 .我们将使用因特网在家里学习,Functional Practise：,1.Tomorrow,there

7、 will be a football match in our school.Im going to watch it. 2.Im going to revise lessons with Li Ming. 3.Everyone will have a computer in the future. 4.Meimei is cooking，she will take the food to the party this evening. 5.My dream school will have big classrooms and libraries. 6.Students will talk to their teachers on the computers. 7.Will there be schools in the future? No, there wont. 8.We will use the Internet to study at home.,Watch the video and answer questions:,What will the weather be like next week?,Lets read the dialogue.,Thank you !,

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