1、课 题Unit4Global warming(Vocabulary)第 1 教时教学目标1. To enable students to read the new words and phrases in unit 2 by themselves. 2. To get the hang of the usages of some important words, such as darkness, warmth, eventually, transform.3. Ss can employ the new words and phrases to make sentences.4. Ss ca
2、n use the right form of the words to fill in the blank. 重、难点Understand the usages of the new words and how to use the new words to make sentences.教学过程修改意见Step One: GreetingStep Two: Listen to the tape and read after it one by one ,and then read the new words in Unit 2 togetherStep Three: Translate t
3、he words into Chinese or English global(adj.)全球的 phenomenon (n.),现象 fuel(n.)燃料 quantity(n.),量，数量 per, 每一，每 data (n.)资料，数据, catastrophe (n.)大灾难 climate (n.)气候, consequence (n.)结果，后果 state(v.)陈述 range(n.)种类,范围 average(adj.)平均的, widespread(adj.)分布广泛的, decrease(v.)下降 steadily(adv.)稳定的, existence (n.)存在,
4、 outer, electrical(adj.)电的，于电相关的, , microwave (n.)微波炉, nuclear(adj.)核能的,原子核的 disagreement (n.)不同意,分歧Step Four: Remember the words quickly on the screen and complete the sentences with the suitable words above.1. The _(平均数)of 4, 8 and 3 is 5.2. There has been serious _(分歧)between the two political pa
5、rties over the question.3. Many scientists believe that it is human activity that has caused g_ warming.4. The burning of fossil f_ caused the increase of CO2.5. The result of a rising sea level would be w_ flooding.6, Its OK to leave an e_ appliance on.7, She g_ at her watch and told me it was 12 o
6、clock.8. People who believe in God have no doubt about the e_ of God.9. It is very convenient to use a m_ oven to cook food.Answers : 1,average2,disagreement(分歧)3,. global 4. fuels 5.widespread6,electrical 7, glanced8, existence9. microwave二. 在下列空格中填入适当的词,将其补充完整: 14%e_about_发生，造成; pare _with和比起来;3qu
7、anlities of 大量的 4.result in导致5. put up with 忍受，容忍 6.make a deference有关系，有影响7.an so _on_ 等等; 8.build _up_ 逐步建立，增加9. keep _on_ 继续 10. have an _effect _ on 对由影响11. on the _whole_ 大体上，基本上 12. glance _at_ 瞥一眼13. result _from_ 由引起 14. _other_ than 除了三用上面所填词或词组的适当形式填空：10%1. Global Warming has _ the rise in
8、 the sea level.2. I can not _ the noises here.3. You have made a few mistakes, but _ you have done well.4. _ her child, his is polite.5. There are _ students in Class 5 and Class 9.6. What you said did _ on my job.7. The rain _ all night.8. Sports and games can _ our bodies.9. Life is often _ a jour
9、ney.10. _ you promise to return it to me, you can borrow my book.Step Five: Learn some important words in detail1. dark adj.黑暗的；昏暗的 darken v.使变黑暗；变黑 darkness n.黑暗；漆黑EX: It was dark in the room and we couldnt see much at first，but after a few minutes our eyes got used to the darkness. (dark). Thick c
10、louds darkened (dark) the sky before the rain fell.2. end n.终结；末端；v.终结；终止endless adj. 无穷的；无止境的 ending n.电视、电影等的结局,结尾EX: How did the story end? Just like most romantic stories，it had a happy ending. The prince killed the monster and saved the princess in the end and they lived happily ever after. (en
11、d) Love is an act of endless (end) forgiveness，a tender look which becomes a habit.3. transform vi.& vt. 转化；转换；变换 transformation n.转化；转换；改革 transformative adj. 可转化的 transform . into 把转换EX:(1)E-mail has transformed (transform) the way people communicate in the past few years. They ve transformed the
12、old train station into a science museum. After three weeks we noticed a total transformation (transform) in his behaviour.Step Six: Translate the phrases into Englishtake it easy 不紧张，放松run out of 用完be made up of = consist of 由、组成in particular 尤其，特别transform . into. 把、转化为try out 测试let out 发出，放走Step S
13、even: Fill in the blank 1. 在我们上路前，我们最好找到汽油站，以防汽油用完。Wed better find a gas station before we get on the highway，in case we may run out of oil.2. 这个音乐会真好，我特别喜欢最后一首歌。It was a good concert，and I enjoyed the last songs in particular.3. 联合王国是由四个国家组成的，分别是英格兰，苏格兰，威尔士和北爱尔兰。The United Kingdom is made up of fou
14、r countries，which are England，Scotland，Wales and Northern Ireland.4. Rose 在公路上看到一条蛇，她立马发出了尖叫声。At the sight of a snake on the road，Rose immediately let out a scream.5. 如果我们没有从容面对，我们就不会赢得比赛。If we hadn t taken it easy，we would not have won the game.6. 在你买电脑前，一定要试验过。Be sure to try out the computer befor
15、e you buy it.7. 热能把水转化为水蒸气。Heat can transform water into vapor.Step Eight: Do some exercises on the screen用所给单词的适当形式填空1. A lot of Tang poetry has been translated (translation) into English.2. Lihuas endless (end) patience in helping me with my maths really made me moved.3. We should not eat the food which is too salted (salt) because it is bad to our health.4. Im really delighted (delight) to see you.5. That is a mere repetition (repeat) of what you said before.Step Six: SummaryStep Seven: Homework1. Copy the words in Unit 22. Read the passage on Page 33. 教学反思