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1、NSEC Book3 Unit4Astronomy: the science of the stars Lesson 3Listening and Reading(One period)1. 隨著科技的發(fā)展，人們?cè)絹碓蕉嗟匾揽坑?jì)隨著科技的發(fā)展，人們?cè)絹碓蕉嗟匾揽坑?jì) 算機(jī)處理各種各樣的事情。（算機(jī)處理各種各樣的事情。（development, depend on, all sorts of）5. 我們應(yīng)該想辦法阻止有害的氣體蔓延。我們應(yīng)該想辦法阻止有害的氣體蔓延。（preventfrom, harmful, spread）Translation on Page64 in Workbook:2.既

2、然存在著許多無法解決的問題，戰(zhàn)爭(zhēng)很可能會(huì)爆發(fā)。(now that; exist; break out)Now that many problems which cannot besolved exist, wars will probably break out.Do the following exercises to consolidate:1.Li and Wang did not like each other at first, but _(最終最終) they became friends.2.Villagers planted a large number of trees to

3、 _ (防止土壤被沖走防止土壤被沖走).3._, small plants multiplied and filled the first oceans and seas. 4.Whether well go out for a picnic _ (視天氣而定視天氣而定).As time went byIsaac Newton牛頓牛頓Albert Einstein愛因斯坦愛因斯坦Stephen Hawking霍金霍金They are outstanding physicists. They all have good knowledge of physics, mathematics, geo

4、physics, astronomy, etc.What do they have in common?What do the 3 scientists study all concern?Gravity.As far as you know, is gravity the same at different places in space?No. Gravity is different in space. For example, the gravity of the moon is only 1/6 of that of the earth.the Milky Waythe Solar

5、Systemthe Black Hole 1. I heard about how three men made mistakes when they tried to describe gravity. 2. I heard about how three men wanted to find out about the beginning of the universe. 3. I heard about how the idea of gravity had developed over a long period of time. 4. I heard about three scie

6、ntists and their work.Pre-listening: guess which of the following will be the main idea of the passage.Now, listen to it to see if you are right.Listen to the part about Isaac Newton and fill in the following table.Dates IdeaOther informationIsaac NewtonEverything _ to the _ because of a pull called

7、 _.Newtons gravity was only about the _.1642-1727falls backearthgravityearthListen to the part about Albert Einstein and fill in the following table.Dates IdeaOther informationAlbert Einstein1) Gravity is _ in space. 2) When a rocket or spaceship is in space, there would be _ gravity.3) Time is _ _

8、everywhere. Einsteins gravity was about the _.1879-1955differentnonot thesameuniverseListen to the part about Stephen Hawking and fill in the following table.Dates IdeaOther informationStephen Hawking“Black holes” not only _ stars or things into it, but also _ them out into space.Hawking _ Einsteins

9、 idea about gravity to make ideas about _.1942-nowpullpushuses“black holes”Pre-reading:Lets read an example which will show us Einsteins idea about gravity. But before that, lets look at some photos.When will the astronauts feel they are pushed hard back into their seats?When will they float (漂浮漂浮)

10、around in the spaceship?If you had a chance to walk on the noon, do you think you would walk faster or more slowly?The way gravity changedLeft the earthIn spaceOn the moon3. It became very light.1.The gravity became very strong.2.The gravity disappeared. Read the passage and finish the exercises aft

11、er it.The weight changedLeft the earthIn spaceOn the moonHe became very heavy.He had no weight and could float around like a feather. He was about one-sixth of his weight on the earth.Key words and expressions in the passage:have a chance to do sth 有機(jī)會(huì)做某事有機(jī)會(huì)做某事force 力，力量，自然力，物理力，力量，自然力，物理the force o

12、f gravity 重力重力 Gradually the weight lessened. 漸漸地重量減輕了。漸漸地重量減輕了。cheer up 歡呼，喝彩，感到高興歡呼，喝彩，感到高興float weightlessly around in the spaceship cabin在太空艙失重地飄來飄去在太空艙失重地飄來飄去explore 探險(xiǎn)探險(xiǎn) mass 質(zhì)量質(zhì)量 now that 既然既然get the hang of sth 掌握掌握 break out 突發(fā)，突發(fā)， 爆發(fā)爆發(fā)exhaust 使筋疲力盡使筋疲力盡 exhausting 令人令人筋疲力盡筋疲力盡的的exhausted筋疲力盡的筋疲力盡的 exclaim 驚叫，大聲叫驚叫，大聲叫Homework:1.讀背閱讀篇章中的新單詞，準(zhǔn)備小測(cè)。讀背閱讀篇章中的新單詞，準(zhǔn)備小測(cè)。2.完成課本翻譯完成課本翻譯P64-ex3- 3) 4) 6).3. 找出找出P25-26閱讀篇章中所有的賓語從句和閱讀篇章中所有的賓語從句和表語從句。表語從句。