《高一英语教学优质教案：Unit 2 第7课时（牛津译林版必修2）》由会员分享，可在线阅读，更多相关《高一英语教学优质教案：Unit 2 第7课时（牛津译林版必修2）（8页珍藏版）》请在金锄头文库上搜索。
1、英语必修2译林牛津版Unit 2优质教案（第7课时）Period 7 Grammar and usage Teaching Aims:1. New words and expressions: note, interview, schedule, surprisingly, get into. They would reach the airport an hour later. I was going to leave. He was seeing her later. The journey that was to change Tobys life started Colin was a
2、bout to get off the camel .2. Enable the students to use Future in the Past correctly.3. Help the students learn how to use Future in the Past correctly.Teaching Important and Difficult PointsLearn the usage Future in the Past. Teaching MethodsPractice; task-based activitiesTeaching AidsA tape recor
3、der and the multimedia.教师看高考阅读理解、专题训练(*)、说明文的阅读(2)阅读下列短文，然后按要求完成读写任务Microwaves may be great at warming up food，but what about warming people?Using microwaves to directly heat owners of a room would save much of the energy wasted by heating walls and furniture.And despite popular ideas about microwav
4、es，this technique would be safe，according to Charles RBurlier of the Microwave Research Center in Marlborough，New Hampshire.Lowpower microwaves only penetrate (贯穿)the skin (lowpower microwave penetration in a ham is about 0.2 inches，for example)and with no negative effects.To test this idea，Buffler
5、subjected himself to microwaves in a special room using a standard 500watt,2,459 MHz magnetron (磁控管)He found that a person will start to feel warmth at about 20 milliwatts per square centimeter (mw./ sq .)；a satisfactory feeling of warmth occurs between 35 and 50mw./ sq .By comparison，a person stand
6、ing in noonday summer sun feels the amount of 85 mw./ sq .And a frozen meat pie in your microwave oven receives about 1,000 mw./ sq .In houses of the future，each room could be provided with its own magnetron，says Buffler.When you stepped into the living room，for example，a motion detector (运动感应器)woul
7、d turn on the magnetron，filling the room with lowpower microwaves.In the same way that a microwave oven heats up a hamburger，but not the plate its on，you would feel warmth from the microwaves without changing the temperature of your coffee table.You could，however，make your favorite easy chair even m
8、ore comfortable by treating it with a radiationabsorbing chemical.While it might be some time before homeowners are comfortable enough with the idea to set up wholebody microwave heaters in houses，Buffler says microwaves may attract livestock(家畜)farmers.Lambs that are born outdoors in winter，for exa
9、mple，are frequently lost to cold.Microwaves could warm the lambs safely and quickly.以约30词概括文章大意_.根据短文内容选择最佳答案1Which of the following can tell the main idea of the passage?AA new heating system. BA new microwave oven.CA popular technique. DThe magnetron.2According to Paragraph 2，which of the followin
10、g does not describe the characteristics of a microwave heater?AIt directly heats people in a room.BIt heats walls and furniture in a room.CIt is safe.DIt saves energy.3The test conducted by Buffler shows that when a person feels comfortable warmth，he receives about _.A20 mw./ sq . B40 mw./ sq .C60 m
11、w./ sq . D85 mw./ sq .4According to Paragraph 4，which of the following fills the room with lowpower microwaves?AThe magnetron.BThe motion detector.CThe microwave oven.DThe radiationabsorbing chemical.5Which of the following statements about microwave heaters would Buffler most probably agree with?AM
12、icrowave heaters will soon be widely used by homeowners.BMicrowave heaters sometimes make people feel uncomfortable.CPerhaps microwave heaters will be first used by livestock farmers，who wish to protect their lambs in winter.DMicrowave heaters cannot be accepted by the public because they are somewh
13、at unsafe.参考答案The passages introduces a new heat system which can heat people directly by using a magnetron controlled by a motion detector.Thus we can save energy wasted by heating walls and furniture.(32 words)1解析：全文介绍了一种新的加热系统， 包括它的工作原理、使用方法等。答案：A2解析：从第二段的第一句save much of the energy wasted by heat
14、ing walls and furniture可知答案。答案：B3解析：从a satisfactory feeling of warmth occurs between 35 and 50mw./ sq .得知答案。答案：B 4.解析：从each room could be provided with its own magnetron可知答案。答案：A 5.解析：从最后一段可知答案。答案：C Teaching ProceduresStep 1 Revision Check the answers of the homework and do some explanations.Step 2
15、Future in the Past Task 1 PresentationAsk the students to read the given sentences below and identify which tenses are used in them. Then ask them to tell when Future in the Past and the Past Continuous Tense are used and what they are used for. Show the following on the screen, only including the sentences.1. Toby said that he wou
