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1、Astronomy:the science of the stars 编号002【学习目标】1. Through series of activities , the students will be able to1. speak out the Chinese 1meanings of the words & phrases and pronounce them correctly .2. use the words & phrases correctly【教学重点】Enable the students to grasp the usages of such important new
2、words and expressions as voilent , unlike fundamental , dissolve ,multiply , exist , prevent, in time, lay eggs, give birth to, block out and so on .【教学难点】How to enable the students to grasp the usages of key words and understand some difficult and long sentences.【知识链接】名词性从句宾语从句、表语从句; 非限定定语从句【自主预习】W
3、ordsvoilent , unlike fundamental , dissolve ,multiply , exist , prevent Expressionsin time, lay eggs, give birth to, block out, cheer upPatterns1. It exploded loudly with fire and rock, which were in time to produce the water vapor, carbon dioxide, oxygen, nitrogen and other gases, which were to mak
4、e the earths atmosphere.2. Nobody knew that it was going to be different from other planets going round the sun.3. It allowed the earth to dissolve harmful gases, which had become part of the earths atmosphere, into the oceans and seas.4. This encouraged the development of early shellfish and all so
5、rts of fish.5. They produced young generally by laying eggs. 【自学检测】Read the text carefully and fill in the blanks:The earth was just a cloud of_after the “Big Bang”.The earth_loudly with fire and rock.They were in_to produce many things,which were to make the earths atmosphere.As the earth cooled do
6、wn,water began to appear on its surface.It allowed the earth to dissolve_gases.Then life began to develop.The first small plants _and filled the oceans and seas with oxygen.This encouraged the_of early shellfish and fish.Land animals such as insects,reptiles and dinosaurs and son on appearedaftergre
7、en plants appeared.Small clever animals_all over the earth.They are putting too_carbon dioxide intothe atmosphere,which_heat from the earth into space. Whether life will continue on the earth for millions of years to come will_on whether this problem can be solved.【预习疑问】【课堂探究】Task 1 Read the text al
8、oud and then use own words to retell it .Task 2 The following are some important words and phrases . Try to be clear about their meanings and read them correctly .Permit ; account ; stare ; patiencevoilent , unlike fundamental , dissolve ,multiply , exist , preventin time, lay eggs, give birth to, b
9、lock out, cheer upTask 3 Do exercises .单项填空1.Our neighbor has_ours.A.as a big house as B.as big a house as C.so a big house as D.so big a big house as2.During the war lots of families_and a large number of people became homeless.A.broke up B.broke away C.broke off D.broke out3.We cheered_after we he
10、ard that Tina gave birth_a beautiful girl.A.up;on B.up;to C.on;to D.on;on4.This room is_that one.A.three times as big as B.three times big than C.three times bigger D.bigger three times than5.This is the best way I could think of_into the dangerous areas.A.to stop people getting B.stop people gettin
11、g C.to keep people getting D.preventing people getting6._the Chinese team get 51 gold medals in the 29th Olympic_all Chinese people.A.What;excited B.That;exciting C.What;exciting D.That;excited.选词填空：lay eggs give birth to break outin time prevent from cheer upnow that break out watch outblock out ge
12、t the hang of1.The car came to a stop just_to prevent an accident.2.The hens dont_during this cold weather.3.I am happy to inform you that my wife_ son at 4:00 this morning.Both wife and son are healthy.4.A serious illness has_her_working for a year.5._!Things are not so bad as they seem.6._I am fre
13、e,I can enjoy music for a while.7._!Theres a car coming.8.when did the war_?9.The high building_the sunlight of my room.10.It takes a while before you _water-skiing.用括号中所给单词或短语的适当形式翻译下列句子。1. 结果，他们拯救了这片森林里90的树木。2. 移动电话使得我们不论在何处都能与他人交谈。(make it possible for sb. to do sth.)3. 新鲜空气对于身体健康必不可少。(be fundame
14、ntal to .)4. 请你告诉我怎样防止这种事情发生好吗？(prevent . from . )5. 新鲜空气对于身体健康是必不可少的。(be fundamental to . )6. 他除了给我忠告外，还给我钱。(as well as)7. 他不知如何回这封信。(puzzle)【总结反思】【自学检测】 dust exploded time harmful multiplied development spread much prevents dependII.BABAAD III. In time;lay eggs;gave birth to;prevent from; cheer up
15、;Now that;Watch out; break out;blocks out;get the hang ofAs a result, they saved 90% of the trees in the forest.Mobile phones make it possible for us to talk to anyone from anywhere.Fresh air is fundamental to good health.Would you please tell me how to prevent this kind of thing from happening?Fresh air is fundamental to good health.He gave me money as well as advice.
