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1、Unit4Astronomy:thescienceofthestars1课文与语法填空 阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。Theearthwasjust 1 cloudofdustafterthe“BigBang”.Theearthexplodedloudlywithfireandrock.Theywereintime 2 (produce)manythings,whichweretomaketheearth’satmosphere.Astheearthcooleddown,waterbegantoappearon 3 (it)surface.Itall
2、owedtheearthtodissolve 4 (harm)gases.Thenlifebegantodevelop. Smallplantsmultipliedand 5 (fill)theoceansandseaswithoxygen.Thisencouragedthe 6 (develop)ofearlyshellfishandfish.Landanimalssuchasinsects,reptilesanddinosaursappearedaftergreen 7 (plant)appeared.Smallcleveranimalsspreadallovertheeart
3、h.Theyareputtingtoomuchcarbondioxideintotheatmosphere, 8 preventsheatfromescapingfromtheearthintospace. 9 lifewillcontinueontheearthformillionsofyearstocomewilldependonwhetherthisproblemcan 10 (solve). 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 2课文与短文改错根据课文内容,对下面材料进行修改。文中共有10处语言错误,每句中最
4、多有两处。每处错误仅涉及一个单词的增加、删除或修改。LastmonthIpaidavisitthemoonwithmyfriend.Beforeweleft,Iwastoldtheforceofgravitywouldchangethreetimeonourjourney.Thenwetookup.Aswelefttheearth,Ibecameveryheavily.Graduallytheweightlessen.WhenIwasinspace,itwasdisappeared.WefloatedweightlesslyinthecabinandIcheeredup.WhenIwa
5、sonthemoon,Iwassurprisetofindevenwalkingneededabitofpracticenowthatgravitychanged.Returningoftheearthwasveryfrightened.Wewereamazedtowatchfirebrokeoutontheoutsideofthespaceship.3话题知识与写作Ⅰ.根据提示翻译下列句子。1.我们能登陆火星吗?这完全取决于科学和技术的发展。(dependon)2.火星上几乎没有氧气,这使生命不可能存在。(make;exist)3.中午的温度可能在零上50℃左右,而晚上的温度则在零下
6、100℃左右。这使得我们无法在那里生活。(prevent...from...)4.既然火星与地球完全不同,如果我们有朝一日去火星的话,我们不得不带上我们自己的氧气、食物、衣服和住的地方。(nowthat)Ⅱ.将以上句子连成一篇语言流畅、用词准确、逻辑严密的短文。答案精解精析1.课文与语法填空1.a 2.toproduce 3.its 4.harmful 5.filled6.development 7.plants 8.which 9.Whether10.besolved 2.课文与短文改错 LastmonthIpaidavisit①themoonwithmyfriend.Before
7、weleft,Iwastoldtheforceofgravitywouldchangethree②onourjourney.Thenwetook③.Aswelefttheearth,Ibecamevery④.Graduallytheweight⑤.WhenIwasinspace,it⑥wasdisappeared.WefloatedweightlesslyinthecabinandIcheeredup.WhenIwasonthemoon,Iwa
