unit_4_topic_2_section_c

《unit_4_topic_2_section_c》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、Unit4AmazingScienceTopic2I’mexcitedaboutthethingsthatwillbediscoveredinthefuture.SectionCsomanypeople/overcrowdedtoomuchairpollution/pollutedWhatshallwedoWhereshallweliveMarsDoyouknowanythingaboutMars?Guesswhetherit’strueorfaulse.Thenreadthepassagequicklyandchecktheanswers._____1.Marslookslikea

2、redball._____2.ThetemperatureonMarsisveryhigh._____3.Marsismuchlargerthantheearth._____4.Marsistoofarawayforustoreach.TFFFNewWordsFindoutthenewwordsandmarkthemwithredpens,andtrytoguessthemeanings.完成导学案自学检测。Read1aandanswerthequestions.(1)WhatdoesMarslooklike?Itlookslikearedandorangeball.(2)Howfari

3、sMarsfromthesun?It’sabout228millionkilometersawayfromthesun.(3)What’sthetemperatureonMars?Itisbetween-138℃and28℃.1bRead1aagainandwritedowntheinformationaboutMars.DiameterColorShapeClimateGravityDistancefromthesun53%aswideasthatoftheearthredandorangeaballduringspringandsummer:strongstormstemperatu

4、re:between-138℃and28℃abouttwo-fifthsasstrongasitisonearthabout228millionkilometers1.Itsdiameteris53%aswideasthatoftheearth.它的直径是地球直径的53%。2.ThegravityonthesurfaceofMarsisabouttwo-fifthsasstrongasitisonearth.火星表面的引力大约是地球引力的五分之二。倍数(分数/百分数)+as+adj.+as……的几倍3.Marsgoesaroundthesunatadistanceofabout228mi

5、llionkilometers.火星在距太阳约228000000千米处环绕着太阳转。atadistanceof…有……距离/相隔at/fromadistance在远处LanguagePoints4.ScientistsarestillsearchingformoreinformationaboutMars.科学家们正在对火星进行更多的探索。searchfor:搜寻某人/物。如：Allnighttheysearchedforthelostboy.search…for…搜某人的身或者某地方为了找到什么。如：ShesearchedmanyshopsforJim’sgift.Searchsb./

6、sp.搜某人的身/搜某个范围。如：Mr.Smithsearchedeveryroominthehouse.Thepolicesearchedthethief.LanguagePointsRetellaccordingtofillingthepassageMars,the_______planetofthesolarsystem,goesaroundthesunata_________ofabout228millionkilometers.Its_______is53%aswideasthatoftheearth.Itlookslikea_____and_______ball.It’sve

7、rybeautiful.Butduring______and_______,strong__________cancoverthewhole__________ofMars.Thegravityonthesurfaceofitisabout________as________asitisonearth.Exercisefourthdistanceredorangespringsummerstormssurfacetwo-fifths