安徽省滁州二中高二英语《Unit 20 New Frontiers Lesson 3 Scientific Breakthroughs》教案

安徽省滁州二中高二英语《Unit 20 New Frontiers Lesson 3
Scientific Breakthroughs》教案
Teaching aims
1.words and phrases：
nguage points in the text
3.reading strategies
4.exercises about text
5.vocabulary:phrasal verbs and compound words
Teaching time： Two periods(两课时连堂)
Teaching process
Step 1 Revision
Review the new words of lesson 2 and have a diction
Step 2 learn the new words of lesson 3
1.ask some students to read the new words first and correct their pronunciation
2.play the tape and have them read after the tape
3.give them a few minutes to read the new words freely, tell them if they can’t read the words, encourage them to ask the teacher .
step 3 reading
1.discuss the pictures and talk about the scientists’ major discoveries.
2.do exercise 2 by themselves.
3.let the students look at Reading Strategies and check their answers to exercise 1 and 2.
4.play the tape twice, and do exercise 4.
step 4 language points
1.in a dilemma处于困境
2.have sth on your hands手头有某事待处理
3. make a breakthrough/discovery 作出突破、发现
4.not to mention更不用说
5. range from…to…在…范围内变化
6.replace…with…用…代替…
7. donate sth. to sb./sth. (for sb.) 捐赠给(为某人捐...) n. make a donation to 向...捐助
8. correspond with sb.与某人通信 correspond with sth. 与...一致 correspond to 相当于
9. meanwhile=in the meanwhile/meantime=at the same time与此同时,在此期间 adv.
10. single out挑出、选出 pick out认真挑选 sort out使整齐、整理;挑出
11. not even 甚至连…都不 12. ex-lawyer n.前律师 outspoken adj.直言的
high-powered adj.功率大的 far-reaching adj.影响深远的 double-check v.复核/复查mass-produce v.大批量生产
13. be previously thought to be... 之前被认为是
14. cn.用单数 outcome of …的结果 results(比赛、考试、年度)结果,成绩,业绩
15.cure sb. of sth. 治愈某人的疾病；矫正某人不良的行为a cure for 治疗.....的方法 P25
treat sb. for sth.“为某人医治，治疗”。

强调治疗的动作或医治的过程，不涉及治疗的结果
heal强调伤口的愈合或破裂的感情的弥合
17.go out 熄灭
16.wrestle with something努力解决难以处理的事情
18.be dedicated to sth.献身于，专注于
19.be grateful to sb. for sth.感谢某人的…
20.experiment with用/对…进行试验
21.否定There's no/ little / not much doubt about/as to sth/that. Sb have no doubt about/as to/that
n.肯定There is some doubt about / as to/whether... Sb have some doubt about / as to/whether...
v. doubt在否定句和疑问句中，后接 that-从句；在肯定句中，接whether或if 引导的从句。

step 5 vocabulary
Remember the new words and phrases.
Do relative exercises.
Communication Workshop
一．Teaching aims:
1.To get some knowledge about the space exploration
2.To read for the specific information and summarize the main idea of each paragraph
3.To learn some idiomatic expressions
4.To practise using linking words to express reason and purpose
5.To write an article for a local magazine
二．Teaching main points: To write an article for a local magazine 三．Teaching aid: Multi-medium
四．Teaching procedures:
Step1. Warm up
Get students look at the picture and make them know the world and its recourse is limited then ask them what we should do?
Step2. Pre-reading
Task1. Ask students to work in pairs to talk about the following questions:
Do you know when the fist space exploration began?
Which country launched the first satellite?
Who was the first man into the space?
Do you know anything words about the space?
Task2. Study some words about the space
Step3. Reading
Task1. First reading
Students work individually, reading the article and matching the headings with the paragraphs.
Task2. Second reading
Students read the text again and then find sentences in the text that mean the same as these colloquial sentences
Do the first item with the class first
Students then complete the exercises working in pairs
When check students’ answers, have individuals read out both sentences.
Step 4 language points
1.kick off (会议、事情等)开始
2.be in=be fashionable流行、时髦 be out=out of fashion 过时
3.send up上升 send down下降 send out发出 send back送回 send away 送走
send for help请人帮忙 send off邮寄出、发出4.a load of/loads of complaints/time 很多、许多 5.four corners of the globe世界各个角落 6.interest faded 减退and the number dropped off减少
7.in conclusion=in summary= in a word总之
8.the press “新闻界,报界the press on/upon迫使;进逼press sb. to do sth劝说/催促某人做某事
9.declare sth. (to be sth.) 宣布...为... declare sth.宣布;申报declare for/against sth.声明赞成/反对
vt. 指正式和明确地向公众“宣布,声明”,侧重当众发表,多用于宣战和宣判。

vt. announce sth. to sb.指“公开发表、宣布”,尤其将有益之事公之于众,如消息或新闻等.
10.drop in on sb./at sp. 拜访某人/参观某地 11..be associated with与…有关/交往
12.line up使排成行 13.in good/bad condition=in a good/bad state状况好/差
14. with/ without 的复合结构，在句中可以作随伴、原因、时间状语等。

①. with /without +宾语 + to do (主被动,尚未发生) With nothing to do, they went out for a walk.
②. with /without +宾语 + done (被动,已经完成) They stayed inside with the door locked.
③. with /without +宾语 + doing (主动,同时发生) The child slept with the light burning.
④. with /without +宾语+adj./adv./介词短语 He turned off the TV without anyone in the room. Step5. Exercise
Task1. Get students work individually and match the words with the idiomatic expressions from the text (1-5) in italics.
Task2. Using the following words to complete the sentences.
Step6. Writing
First, important elements in writing. Then several choices. Useful vocabulary Step7. Homework
Revise what we learn in this unit.。