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1、Module5 A Lesson in a Lab Section.根据所给汉语释义或单词首字母写出空缺处各单词的正确形式1When the iron is heated，it e_，while most substances will _ when it gets cold in winter.2Man cant e_ without food and water.3Air is a m_ of gases.4They came to a c_ that a new hospital should be built in this city.5The hunter a_ his gun at
2、 the bear carefully.6These are new _ (科学上的)discoveries.7I found it hard to keep my b_ on the icy path.8The increase in electricity costs has a_ to our difficulties.9The cooker isnt working because of an e_ fault.10There is a lot of modern _(设备)in our school lab.从下列框中选择合适的单词，并用其正确形式填空1He has a lot of
3、 things to_ before he leaves.2_that no one finds out about it.3_ that dog _ my study.4Dont_ her waiting outside in the rain.5He started his life _ and worked his way to the top.6The inflation has _ our difficulties.根据所给汉语完成句子1在我包装给汤姆的礼物时，尽量别让他到房间里来。Try to_ Tom _ _ the room while I wrap his present.2
4、很快房子里就挤满了小孩子。The house was soon_ _ children.3他在楼梯底部摔倒了。He fell down _ _ _ _ the stairs.4你妈妈对这条消息有什么反应？Whats your mothers _ _ the news?5你的房间太乱了，去把它整理好。Your room is very untidy；go and _ it _ _.6这种烟是三种不同的烟叶混合而成的。This tobacco is_ _ _three different sorts.7你又犯了和上次同样的错误。Youve made _ _ mistakes _ last time
5、.8我们正考虑去西部工作。We _ _ _ going to the West to work.9老师发现那个学生作弊后极为气愤。The teacher was very angry when he _ _ that the student had been cheating.10万物充满生机。Everything is _ _new life.单项填空1Add some oil _ the water.This will _ air out of the water.Ato；make Bto；keepCwith；keep Din；get2I thought hard but I just c
6、ouldnt _ his name at the moment.Athink over Bthink aboutCthink of Dthink out3All different kinds of living costs _more than $1000.Awere added up to Badded upCadded up to Dadded to4The wild flowers looked like a soft orange blanket _ the desert.Acovering BcoveredCcover Dto cover5He _his fathers influ
7、ence by running away.Areacted to Breacted withCreacted by Dreacted against6My remarks _ at you at all.That is to say，I didnt aim my words _ you at all.Adidnt aim；to Bdoesnt aim；onCwere not aimed；at Dwere not aiming；for7The terrible flood _ several days heavy rain.Aresulted Bresulted in Cresulted fro
8、m Dcaused8Parents should _ their small children _rivers.Akeep；away Bkeep；away fromCkeep；off Dkeep；out9The bird _ its wings and flew away.Aspread BexpandedCextended Dscattered10The _，I think，he drew from his simple experiment is not scientific.Acharge BconclusionCpromise Drelation.阅读理解Chemical Change
9、 and Physical ChangeThere are two kinds of changeschemical change and physical change.In a chemical change，there is always a new substance formed.Breaking up water into hydrogen and oxygen is a chemical change.In each of the chemical change at least one new substance is formed.A change is not a chem
10、ical change if it doesnt form a new substance.Physical changes are very common，too.There are many examples.You can make a physical change by tearing a piece of paper in two，or by cutting a piece of iron with lathe.Here paper is still paper，and the iron is still iron.Another way of making physical ch
11、ange is dissolving something in water.When you dissolve salt in water，the salt disappears.You may think that a new substance has been formed.But really there is no new substance.The salt is still salt.You can still taste it.So the dissolving of anything is a physical change.When water freezes，the ch
12、ange is also a physical one.The water changes from liquid to solid.But it is still the same substance.That is why the freezing of anything is a physical change.1It is not _ if a new substance is not formed in the change.Aa physical change Ba chemical changeCchange of state Da change2The dissolving o
13、f salt in water is _.Aa physical change Ba chemical changeChydrogen and oxygen Dbreaking up3The change of the three states of water is_.Aa chemical changeBdifferent substancesCa physical changeDthe same state参考答案.1答案：expands；contract2答案：exist3答案：mixture4答案：conclusion5答案：aimed6答案：scientific7答案：balance8答案：added9答案：electrical10答案：equipment.1答案：find out2答案：Make sure3答案：Keep；out of4答案：leave5答案：at the bot
