unit4astronomythescienceofthestars课时作业人教版必修3

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1、unit4astronomythescienceofthestars课时作业人教版必修3I•单词拼写1•（迷惑）aboutthelongsentencestructure,heturnedtotheEnglishteacherforhelp.［答案］Puzzled2.Withsomanyproblemsarising,the（制度）shouldbechanged.［答案］system3.Water（存在）inthreeforms一liquid,gasandsolid.［答案］exists4.（不像）hisdeskma

2、teheworkedoutthemathprobleminadifferentway.［答案］Unlike5.ThedoctortoldTomthatitwas（有害的）tohishealthtodrinkorsmoke.［答案］harmful6.Theheavyrain（阻止）himattendingthemeetingyesterday.［答案］prevented/stopped7.（逐渐土也）theweightlessenedandIwasabletotalktohim.［答案］Gradually8.Onour

3、journeytothemoon,the（力量）ofgravitywouldchangethreetimes.［答案］force9.We（探索）immediatelywelandedonthemoon.［答案］explored2.Shewas（惊讶的）thathewasstillalive.［答案］amazed3.单句语法填空1•Cindydidn'tleavetheofficelastnightshefinishedherjob・［解析］句意:辛迪昨晚直到完成了工作后才离开办公室。“直到……才"，until引导的时

4、间状语从句中用短暂性动词。［答案］until2.—CanIsmokehere?—Sorry.Wedon'tallow（smoke）here.［解析］句意：“我能在这儿吸烟么？”“对不起，我们这里不允许吸烟。"allow后可以接动名词或含有不定式的复合宾语。［答案］smoking3•Onlinegamesarenot（harm）tochildrenandcanevenbeeducationalaslongastheyare“clean'、andtheplaytimeisreasonablyairanged.［解析］句意

5、：在线游戏并不是有害于儿童，甚至可以是有教育意义的，只要他们是“干净”的并且玩耍的时间是合理安排的。beharmfultosb./sth.相当于bebadforsb./sth.,意为“对有害”。［答案］harmful4.Shegavebirththreedaughtersandtwosons.懈析］句意:她生育了三个女儿和两个儿子°givebirthto"产生；分娩”,为固定搭配。［答案］to5・（2013・j匕京卷改编）makesthebooksoextraordinaryisthecreativeimaginat

6、ionofthewriter.［解析］句意:让这本书如此非凡的是作者创造性的想象力。whatmakesthebooksoextraordinary是主语从句，what在从句中作主语。［答案］What6.（2013-四川卷改编）yousaidatthemeetingdescribesabrightfutureforthecompany.［解析］句意：你在会上所说的话描述了公司的光明前途。分析句子结构可知，空处引导主语从句，且在从句中作宾语，故用Whato［答案］What7・（2012-安徽卷改编）Thelimitsof

7、aperson'sintelligence,generallyspeaking,arefixedatbirth,buthereachestheselimitswilldependonhisenvironment.［解析］句意：一个人的智力极限，通常来说，出生时就已经定型了。但他是否能够达到这些极限则取决于他所处的环境。［答案］whether8.Thecinemasheusedtovisithadbeenpulledandanewschoolwassetup.［解析］句意：她过去常去的那家电影院已经拆除了，建起了一座新

8、学校。pulldown拆毁。［答案］down9.Nowthatthetermhascometoend，Iamgoingtohavearestandtakeatrip.［答案］an10.Studentsshouldfindmoretimetogetclosenature,whichcanencouragethecreativity.［解析］考查g