1、Unit4 Using language :A Visit to the Moon Reading and Writing Teaching goals 1.Students will be able to the changes of the earth in gravity by skimming scanning and careful reading.2.Students will learn to analyze several long and difficult sentences and then learn some useful expressions.3.Students
2、 will learn to write a persuasive composition by imitating a sample and practising writing.ReadingA VISIT TO THE MOONTask1:Skimming Read the passage quickly and tell what it is mainly about.Read the 4 paragraphs quickly,and find out the topic of each paragraph.Last month we visited the moon.How the
3、force of gravity changed when we traveled from the earth to the moon.The things I did on the moon.Task2:Scanning Read the passage carefully and retell the trip to the moon with the help of some information.As we left the earth.When I was in space.When I was on the moon.When I left the moon.Task3:Car
4、eful Reading Last month I visited the moon with my friend.As we left the earth,I became very h_.Gradually the weight l_.When I was in space,it d_.We f_ weightlessly in the cabin and I c_ _.When I was on the moon,I was surprised to find out even walking needs lots of practice n_ _ gravity changed.The
5、 returning of the earth was very f_.We were amazed to watch fire b_ _ on the outside of the ship.heavylesseneddisappearedfloatedcheered upnow thatfrighteningbreak outRetell the trip to the moon.1.When we get closer tothe moon,we shall feel its gravity pulling usbut it will not be as strong a pull as
6、the earths.当我们更接近月球时,就会感到月球的引力在拉我们。但是,月球的引力不像地球的引力那么大。Task4:Difficult sentences 2.cheer up:欢呼,喝彩,感到高兴,使高兴当看到球队的到来,人群欢呼起来。_when they saw the team arrive.他带她去听音乐会来使她高兴。He took her _ to _.The crowd cheered upto the concert cheer her up3.But when I tried to step forward,I found I was carried twice as fa
7、r ason the earth and fell over.1)“A+be+倍数+as+形容词原级+as+B”.This tree is three times as tall asthat one.His father is twice as old ashe.2)“A+be+倍数+形容词比较级+than+B”The Yangtze River is almost twice longer thanthe Pearl River.长江差不多比珠江长两倍。而当我试着向前迈步的时候，我发觉我被送出去很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。The number of students
8、in our school is three times larger thanthat in theirs.我们学校的学生数量比他们学校的多三倍。3)“A+be+倍数+the+名词(size,length,amount)+of+B”The newly broadened square is four times the size ofthe previous one.新扩建的广场是未扩建时的四倍大。4.“walking does need a bit of practice now thatgravity has changed.”既然引力改变了,走路也的确需要练一练了。now that同s
9、ince相似,1.既然你忙,就让我给你做吧。Now that you are busy,let me do it for you.2.既然人都齐了,咱们开始干吧。Now that everyone is here lets start workScientists have found out that the radiation is the greatest danger to spacemen in space.when sapcemen are working in space,theyre faced with aradiation from the sun and other pl
10、anets,which is bad for their health.If I were a scientist,I would invent a kind of space suit made from unique materials which can reflection.Wearing such a suit,spacemen can walk freely in space without suffering from any radiation.besides,I would invent a special machine which can absorb all the r
11、adiation in space and turn into harmless air.I believe with the development of science andtechnology,the radiation problem in space can be grandually solved.present problemslist solutionsmake a summaryTask5:Reading a sample Activity1:Writing an outline of the sampleOutline(main idea)The first paragr
12、aph(introduction)Body(your own ideas on the item)Conclusion(summing up)headingActivity2:Learning and Writing下面是一篇太空存在的问题的范文，根据汉语提示用恰当的语言补全文中所缺内容。1.do harm to2.the space environment3.robot cleaners4.rubbish collecting machineWith the further space exporation,there appears more and more rubbish in spa
13、ce,_（这对太空环境造成了很大的危害）.Actually,there is much we can do to deal with the space rubbish.First,_(可以把清洁机器人送入太空)to clean the rubbish caused by the explosion of spaceships and satellites.Second,_（可以造专门的垃圾收集机）to collect rubbish which will be sent back to the earth andprocessed._（另一种解决办法是定期燃烧太空垃圾）,which redu
14、ces the amount of russbish in space.With the development of scence and technology,_（我们会找到越来越多的办法处理太空垃圾Activity3:Ss presenting their works.Activity4:Checking the sample for Ss to learn the structure、the useful expressions so that they can write a similar composition on their own.With the further spac
15、e exporation,there appears more and more rubbish in space,which does great harm to the space environment.Actually,there is much we can do to deal with the space rubbish.First,robot cleaners can be sent into space to clean the rubbish caused by the explosion of spaceships and satellites.Second,a spec
16、ial rubbish collecting machine can be made to collect rubbish which will be sent back to the earth andprocessed.Another solution is to burn rubbish regularly,which reduces the amount of russbish in space.With the development of scence and technology,well find more and more methods to deal with space Homework名校学案P47 Write a passage
