1、学优中考网 11-12 外研版英语八上 Module 3：Unit 2 学案 英语八年级上 Module 3 Journey to Mars Unit 2 学案Unit 2 We havent found life on other planets yet.一教学目标：1. Language knowledge:New words: planet, solar, also, none, environment, air, grow, grown, part, galaxy, billion, universe, light, beyond, alone, entrance, cost, pre
2、fer, solar systemKey structures: Present perfect tense with just, already and yet. (重点)2. To use present perfect tense.二。重点难点：1. The present perfect tense.2. Talk about the space mission to Mars3. Attitudes: We should love science and our country.三自主学习：选词填空A. galaxy B. planet C. solar system D. star
3、 E. universe 1.Match the words with the pictures(发光) （不发光） （不发光）2. Put the words in in order： small- large- - - - 学优中考网 。根据括号内动词的适当形式填空。1. -_ you _ (have) your supper?-Yes, I have.2. The girl _ (go) to visit the city if it _ _(not rain) tomorrow.3. Dont forget _ (close) the door when you leave home.
4、4. The boy tried _ _ (climb) the tree, but he failed.5. Many girls are good at _ _ _ (make) things.6. The bus _ _ _ (go) . It left twenty minutes ago.7. Theyve visited most of famous _ _(city)8. Mr wang is one of _ _ _(popular)teacher in our school.9. Scientists have _ _ _(discover) many other galax
5、ies.10. How much _ you _ _(grow) in the past 3 years ?四课堂讲解:。阅读课文选择最好的标题：。阅读课文完成 Activity 4.。阅读课文完成 Activity 5.：.知识点1.millions of + n. “数百万的”(two) million + n. “(两 )百万”There are _ (million / millions )of people in Shanghai.The Big Library has got two _ (million / millions ) books.Our Earth is _ year
6、s old.A. five million of B. millions of C. five millionshundreds of / thousands of + n.two hundred / thousand + n.2. go around “绕着 运转 ” around (prep.) = round The Earth goes around the Sun.He runs around the playground every day.3. more than = over “超过, 多于”More than 200 people from Dongsi are learni
7、ng English.My grandpa is over 70 years old.( 改为同义句）My grandpa is _ _ 70 years old.4.However, we havent found life on other planets yet. 然而，我们在其他行星上还没有发现生命。however 是副词，一般在两句之间，其后用逗号，表示转折。We have not won; however, we shall try again.我们还没有取胜, 不过我们还要再试一下。学优中考网 5The earth is a planet and it goes around t
8、he Sun. Eight other planets also go around the Sun.地球是行星，它围绕着太阳转。还有 8 颗行星也围绕着太阳转。(1)过去一直认为太阳系有九大行星：水星（Mercury） ，金星(Venus)，地球(Earth)，火星 (Mars)，木星 (Jupiter)，天王星(Uranus)，海王星(Neptune)，冥王星(Pluto)。2006 年，科学家一致认定太阳系有八大行星：水星，金星，地球，火星，木星，天王星，海王星。即去掉原来的冥王星。(2) 注意：数词 other名词的复数，而 another数词名词的复数。例如：I have eaten
9、 2 apples, I would like 3 other apples.我已经吃了 2 个苹果了，我想再吃 3 个。I have eaten 2 apples, I would like another 3 apples. 我已经吃了 2 个苹果了，我想再吃 3 个。文章中还有一句：But scientist have discovered many other galaxies in the universe.但是科学家在宇宙中已经发了很多其他的星系。6The stars we see at night are the suns in other solar systems.我们在晚上
10、看见的星星是其他太阳系中的恒星。（1）we see 是定语，修饰 The stars。(2) sun 小写作为普通名词使用，表示“恒星” 。如果大写，表示我们太阳系中的太阳。例如： The Sun is shining.7. With so many stars in the universe, are we alone, or is there life out there in space?宇宙中有这么多的恒星，我们是孤独的吗？太空中还有其他生命吗？With so many stars in the universe 是介词短语，在句子中作状语，表示伴随情况。例如：The boy ran
11、in, with a ball in his hand.小男孩手里拿着球，跑了进来。四课堂练习：( )1.There has been life on earth for _ years.A.millon of B.millions of C.million D.several millon of( )2.The earth goes _ the sun.A.around B.to C.for D.with( )3.None of them has an environment _ air.A.with B. for C. and D. to ( )4.Their light has trav
12、elled for many years to _ us.A.arrive B.get C.reach D. go( )5.How much _ you _ in the past 3 years.A.did ; grow B. have ; grow C. do ; grow D.have ; grown( )6.Although he lives _ , he doesnt feel _A.alone ; alone B.alone ; lonely C.lonely ; lonely D.lonely ; alone 学优中考网 句型转换。1.They heard a message f
13、rom a spacecraft. (用 just 改为现在完成时态形式)They _ just _ a message from a spacecraft.2.Have you got a letter from Lucy? (同义句)Have you _ _ Lucy?3.To understand the problem is very difficult. （用 it 作为形式主语）_ _ very difficult _ understand the problem.4.I came here two days ago. ( 同义句)I _ _ here _ two days.5.
14、Her mother has been to Hong Kong several times. （就画线提问）_ _ _ has her mother been to Hong Kong?五课后练习：Put the sentences into English.1 很难弄清楚宇宙到底有多大It is _ _understand how_ _ _ _.2. 科学家认为地球上的生命已有数百万年Scientists think that _ _ _ life on Earth for _ _ years.3. 来自星星上的光花了很长时间才到我们这儿来.。The light from stars _
15、_ a long time _ _ us .4. 我们还没有在其他星球上发现生命We _ _ life on other planets _.5.Why has _ _ _other planets _ us a message?6.Many p_ look small in space because they are far away from the earth .7.One thousand million is b_.8.There are the earth ,the sun , and many other Stars in the u_ _.9The maths problem is very difficult.Its b_ _ my ability.
