最新Unit12TheEarth課件

1、unit 12 the earthlead-inwhat things are there in the sky?starsthe moonthe earththe sunwhat things are there on the earth?peopleanimalswaterplantsnew wordsearth地球地球part地區(qū)；區(qū)域地區(qū)；區(qū)域forest森林森林land陸地陸地ocean海洋海洋rubbish垃圾垃圾sick生病的生病的listen and saywe should stop cutting down so many trees.ms guo: look at thi

2、s picture. what is it? kitty: its the earth.ms guo: the green and brown parts are forests and land. what are the blue parts? joe: i think theyre oceans.ms guo: yes, they are. the earth was very clean and beautiful in the past, but now some parts are dirty. can we do anything to help the earth? alice

3、: yes. we should stop throwing rubbish into rivers. peter: we should stop cutting down so many trees. kitty: we should stop using plastic bags.write the words in the boxes. then talk about the earth.forestslandoceansthe earth wasand in the past, but now some partswe should stopthe earth was very cle

4、an and beautiful in the past, but now some parts are dirty. we should stop throwing rubbish into rivers, cutting down so many trees and using plastic bags.language points1. we should stop cutting down so many trees. 我們應該停止砍伐這么多的樹。我們應該停止砍伐這么多的樹。 stop的意思是的意思是“停止停止”，stop doing sth. 的意思是的意思是“停止做某事停止做某事”

5、，表示，表示停止正在做的事情停止正在做的事情。例句：停止講話。老師進教室了。例句：停止講話。老師進教室了。 stop talking. the teacher comes in the classroom.注意：注意：stop to do sth. 停下來去做某事停下來去做某事 表示停下來，去做另外一件事情。表示停下來，去做另外一件事情。例句例句：我們走了一個小時，累了。咱們停下來休息一下吧！我們走了一個小時，累了。咱們停下來休息一下吧！ we walked for an hour and tired. lets stop to have a rest.look and learnearth地

6、球地球forest森林森林ocean海洋海洋land 陸地陸地look and readwe live on the earth. the earth is a beautiful place. there are rivers, oceans, land and forests. there are many different plants and animals too.我們居住在地球上。地球是一個美麗的地方，有河流、我們居住在地球上。地球是一個美麗的地方，有河流、海洋、陸地和森林，也有很多不同的植物和動物。海洋、陸地和森林，也有很多不同的植物和動物。people, plants and

7、 animals need clean water and air. sometimes people throw rubbish into rivers and oceans. sometimes people cut down too many trees. smoke from cars and factories makes the air dirty. the earth gets sick.人、植物和動物需要潔凈的水和人、植物和動物需要潔凈的水和空氣。有時人們向河里和海洋里空氣。有時人們向河里和海洋里扔垃圾。有時人們砍伐太多的樹。扔垃圾。有時人們砍伐太多的樹。來自小汽車和工廠的煙使

8、空氣變來自小汽車和工廠的煙使空氣變臟。地球生病了。臟。地球生病了。now people work together to keep the earth clean and healthy. they pick up rubbish. they plant trees every year.現(xiàn)在人們共同努力使地球保持干凈和健康。他們撿起垃圾。現(xiàn)在人們共同努力使地球保持干凈和健康。他們撿起垃圾。他們每年植樹。他們每年植樹。they recycle glass and paper. they bring their own shopping bags and stop using plastic b

9、ags.他們回收利用玻璃和紙。他們帶他們自己的購物袋并且停止他們回收利用玻璃和紙。他們帶他們自己的購物袋并且停止使用塑料袋。使用塑料袋。1. why does the earth get sick?2. what do people do to keep the earth clean and healthy?answer the questions.because sometimes people throw rubbish into rivers and oceans. sometimes people cut down too many trees. smoke from cars an

10、d factories makes the air dirty.1. why does the earth get sick?people pick up rubbish and plant trees every year. they recycle glass and paper. they bring their own shopping bags and stop using plastic bags.2. what do people do to keep the earth clean and healthy?2. the earth gets sick. 地球生病了。地球生病了。

11、language points get是系動詞，意思是是系動詞，意思是“變得，成為變得，成為”，表示一種，表示一種變化過程，強調(diào)變化過程，強調(diào)逐漸變化逐漸變化。后面跟形容詞作表語。后面跟形容詞作表語。例句：夏例句：夏季季白天變得更長。白天變得更長。 the days get longer in summer.（1）turn的意思是的意思是“變得，變成變得，變成”，指在，指在顏色顏色和和性質(zhì)性質(zhì)等等 方面與以前的完全不同，方面與以前的完全不同，強調(diào)變化的結果強調(diào)變化的結果。 例句：葉子變黃了。例句：葉子變黃了。 the leaves turn yellow.拓展拓展：turn 和和 become

12、 （2）become的意思是的意思是“成為；變成成為；變成”，是一個中性詞，是一個中性詞，可用于可用于好、壞兩方面好、壞兩方面的變化。多指的變化。多指身份、職位，暫時性的身份、職位，暫時性的身心變化或永久性的自然變化身心變化或永久性的自然變化，它強調(diào)變化的過程，它強調(diào)變化的過程已經(jīng)完已經(jīng)完成成，后面可接名詞或形容詞。，后面可接名詞或形容詞。 例句：他成了一名科學家。例句：他成了一名科學家。 he becomes a scientist.ask and answerwhat should we do to save the earth? put a tick() or a cross() in

13、the box. then talk about it in groups.1 we should cut down trees.2 we should build more factories and houses.3 we should write on both sides of paper.4 we should use more plastic bags and bottles.5 we should not litter.6 we should throw rubbish into rivers.7 we should stop killing wild animals.8 we

14、should walk or ride a bike more often.s1: what should we do to save the earth?s2: we shoulds3: we shoulds4: we should stopplay roleswe should write on both sides of paper.what should we do to save the earth?we should not litter.we should stop killing wild animals.think and writethe earth was clean and beautiful.now some parts are_.we should_.we should stop_.the earth is sick!the earth was clean and beautiful.now some parts are_.we should_.we should stop_.the earth is sick!and using plastic bagsdirtyplant mo