unit1topic2whatalargepopulationsectionc教學設計仁愛湘教版初三上

1、unit1topic2whatalargepopulationsectionc 教學設計（仁愛湘教版初三上）The main activities are 1a and 2a. 本課重點活動是 1a 和 2a。I . Teach ing aims and dema nds 教學目標1. Learn the new words and useful expressions:difficulty, be short of, so far, percent, offer.2. Talk about the problems the overpopulation brings about:（1）It

2、s difficult for lots of people to find jobs（2）,we are short of en ergy and water.（3）Most cities are more crowded than before, and the traffic is much heavier.3. Get students to know how serious the world s population problem is.n . Teaching aids 教具錄音機 /多媒體 /小黑板 /圖片川.Five-fi nger Teachi ng Pla n五指教學方

3、案Step 1 Review 第一步 復習 （時刻 :10 分鐘 ）1. （用添加數(shù)字的方法復習高位數(shù)字，使學生由淺入深地把握知識。操作：教師第一在黑板 上寫出一個兩位數(shù)， 然后逐次在后面加上一個數(shù)字， 被提咨詢的學生由基礎較差的向基礎 較好的依次遞進。 ）T: Ill write numbers like this 88-888-8888, -8,888,888,888”. Say these numbers as quickly as you can, clear?Ss: Yes.T: 88.S1: Eighty-eight.T: 888.S2: Eighty hundred and ei

4、ghty-eight.T: 8,888.S3: Eight thousand, eight hundred and eighty-eight.T: 8,888,888,888S3: Eight billion, eight hundred and eighty-eight million, eight hundred and eighty-eight thousand, eight hundred and eighty-eight.2. （多媒體展現(xiàn)世界各國人口圖表，復習 Section B 中重要句型。 ）T: You have mastered how to say these numbe

5、rs. Now look at the chart and review what we ve learned in Section B. What s the population of the world?Ss: It is said that the world has a population of 6.5 billion.T: Which country has the largest population?Ss: China has the largest populati on with 1.3 billi on.T: Is the world population increa

6、sing now?Ss: Yes, the world population is increasing by 80 million every year.T: It really is one of the greatest problems today. I think we should do something to solve this problem.Ss: Yes.Step 2 Presentation 第二步 出現(xiàn)（時刻:12分鐘）1. （教師展現(xiàn)人才市場的圖片或多媒體播放春節(jié)前各大銀行排隊取鈔票的畫面，并給出一些材料，引出1a。）T: Just now, we have kn

7、own the world has a large population. Now, look at the picture and listen to my materials about population.1. Every minute about 261 babies are born in the world.2. The world population is growing faster and faster.3. China has the largest populati on in the world.4. China population has reached one

8、 fifth of the world population.What do you think of the picture and the materials, boys and girls?Ss:That terrible!T: Yes. The grow ing populati on will cause many difficulties. It will in flue nee the developme nt of the world economy. So far, some families can offer their children a good education

9、.（板書單詞difficulty, offer，詞組so far,要求學生把握。）difficult（adj.） difficulty（ n） difficulties（ n.pl）offeroffer sb. sth.=offer sth. to sb.so farT: Do you want to know other problems caused by the large population?Ss: Sure. We are short of energy and water.（教師關心學生回答）:板書。要求學生把握詞組be short of。）be short ofT: Yes,

10、now China populati on is one fifth of the world populati on .It means it is 20 percent of the world population, so China has taken some measures to solve the problem. Do you know what they are?（板書one fifth，詳解并要求學生把握分數(shù)表示法，把握單詞percent，明白得詞組 takemeasures to。）Ss:One is known as the on e-child policy. It

11、 has worked well in con troll ing Chi napopulatio n.T: Thanks to the policy, China is developing quickly and peoples living conditions are improvi ng rapidly.（讓學生認識到 be known as, thanks to的用法。）（讓學生讀1a,然后回答1a中的兩個咨詢題。）Step 3 Consolidation 第三步 鞏固（時刻:10分鐘）1. T: Boys and girls, please read 1a aga in and

12、the n retell it, accord ing to the key words on the blackboard.（學生閱讀1a的同時，教師把關鍵詞列在小黑板上。）6. 6 millio n3 billio nhalfone fifthcause difficultiestake measures towork well inlivi ng con diti onsseriousa long way（讓兩位同學看著小黑板上的關鍵詞復述1a。當學生表達錯誤時，教師給予糾正。當學生表達不出時，教師或其他同學給以關心，以提高學生口語復述能力。）2. T: Let look at 1b （

13、work alone）. Describe the disadvantages of China large population according to 1a and write them down. You have two minutes.（給學生兩分鐘完成，然后讓幾位學生寫到黑板上。）T: Now I will ask several stude nts to write their an swers on the blackboard.S1：Smaller places to live in.S2：Difficult to find jobs for lots of people.

14、S3：Short of en ergy and water.S4：Most cities are more crowded.S5：The traffic is heavier.S6：There will be much more polluti on.S7：T:Your an swers are won derful.Step 4 Practice第四步 練習（時刻:8分鐘）1. T: Now, look at the picture. The earth is full of people. The population problem is serious. Pleaseliste n t

15、o the tape and complete the article in 2a.（教師拿出一張地球上站滿人的圖片或將圖片展現(xiàn)在多媒體上。讓學生認真觀看，然后播放錄音2a。）T: Now, look at the text by yourselves. Let listen to the tape again and check the answers.（讓學生核對完后，一起齊讀這篇短文。）T: You have understood the text. Let do the exercise in 2b. Then we will check the answers.（給學生一分鐘，明白得

16、2b中的四個句子，讓一位學生回答。）2. （假如有時刻，讓學生完成一個復述性的填空。）T:Please look at the small blackboard. Finish them according to 1a.（教師出示預備好的小黑板，讓學生把答案寫在課堂作業(yè)紙上。）In 2007, the worlds population was about. More thanpeople live in Asia now. China has the largest population in the world, and aboutof the people in the world li

17、ve in China. A large population many difficulties. China has done something tothe population. the policy, China is developing quickly and peoples living conditions are improvingrapidly.T:Lets check your answers together.（在短文中出現(xiàn)正確答案，并讓同學們一起朗讀。附答案為：6.6 billion, three billion, one fifth, causes, contro

18、l, Thanksto。）Step 5 Project第五步綜合探究活動（時刻:5分鐘）1. T: You have known so much about the population. Now, turn to Page 14 and write a letter to your pen pal about the populatio n problem in China. The questi ons in 3 may help you, the n I will ask some stude nts to show their opinions.（學生們互相交流方法。）（讓學生寫一封信給他/她的筆友，談談他/她對中國人口咨詢題的看法，能夠借鑒3中五個 咨詢題的講法。寫的好的，能夠讀一小段給同學聽。教師講明寫信時必須注意的事項。）2. Homework:Make a survey and complete the chart, then write a survey r