學人教版必修3Unit 4Astronomythe science of the starsPeriod5Using language學案設計（5頁word版）.docx

2018學年度人教版必修3unit 4astronomy:the science of the starsperiod5using language學案設計學習目標1.introduce a visit to the moon and train students reading ability.2.accumulate common knowledge about astronomy through the authors experience,self-directed study and cooperation.3.be interested in astronomy by expressing yourself in english. 學習過程.reading activity瀏覽文章內(nèi)容,把握閱讀速度;結(jié)合插圖,猜測文章大意。task 1 fast reading1.read the passage carefully and then describe the three ways in which gravity changed for li yanping.the way gravity changedleft the earth(1)in space(2)on the moon(3)2.read the passage carefully and then describe how his weight changed.the weight changedleft the earth(1)in space(2)on the moon(3)task 2 careful reading1.it will not be as strong a pull as the earths.(1)翻譯本句。(2)在as.as.結(jié)構(gòu)中第一個as是(詞性),因此后面可以跟、;第二個as是(詞性)。2.but when i tried to step forward,i found i was carried twice as far as on the earth and fell over.(1)翻譯本句(2)通過本句總結(jié)倍數(shù)的表達方式:.writing 學習建議:請根據(jù)寫作指導完成寫作任務。if you were given the chance to travel to the moon,what problems do you think you would face?list one of the problems and think of a solution to solve it.requirements:1.first list the problem you might have on the moon.2.list the possible solution.3.how the solution help solve the problem.4.the writing must be written about 120 words.according to the above points,make an outline about the passage of expository writing:solving a problem.a.discuss with your partners how to solve your problem and then enrich your content.in the meanwhile,look up some new words in the dictionary.b.please finish the composition according to the above outline.c.after finishing your writing,swap your composition with your partners and correct mistakes.d.hand in your composition.好詞好句1.i would be happy to accept the chance to.我非常高興接受這樣的機會2.if i visited the moon,perhaps i would face many problems.(虛擬語氣)如果我登上月球,或許我會面臨許多問題。3.as far as we know據(jù)我們所知寫作要求:短文連貫,詞數(shù)120左右,限時15分鐘完成。寫作正文課后作業(yè)polish your composition and hand it in.參考答案學習過程.pre-reading activitytask 11.(1)the gravity became very strong.(2)the gravity disappeared.(3)it became very light.2.(1)he became very heavy.(2)he had no weight and could float around like a feather.(3)he was about one-sixth of his weight on the earth.task 21.(1)月球的引力不像地球的引力那么大。(2)副詞;形容詞;副詞;連詞2.(1)當我試著向前邁步時,我發(fā)覺我被送出去很遠,步子的跨度竟是地球上的兩倍,因而,我摔倒了。(2)a+is+倍數(shù)+as+adj./adv.+as+b.writing參考范文i would be happy to accept the chance to travel to the moon.but if i visited the moon,perhaps i would face many problems.one of the problems i might have:how should i stop my food floating away.i would have to take all my food with me if i went to the moon.as far as we know,in the spaceship there is no gravity so the food would float around if it was solid.so i would make sure that it is specially made as liquid space food.i can