1、 Module 5 A Lesson in a Lab2025/11/28To know some metals and their reactions with some substancesTo learn how to do an experiment To be able to retell the main points in the text To build up the love for science2025/11/28potassium sodiumcalciummagnesiumaluminiumzincironcopper2025/11/28 1.The Differe
2、nt Uses of Metals 2.The Reaction of Metals 3.The Reaction of Metals with OxygenChoose the best title for Passage A.2025/11/28Read Passage A again and answer the questionsv Which metals react the most with oxygen and water?v What happens when you heat calcium in oxygen?v Which metals react with steam
3、?4.Does iron have a slow or fast reaction with steam?5.Does copper react with water?Potassium,sodium and Potassium,sodium and calsium.calsium.It burns to form an oxide.It burns to form an oxide.Magnesium,aluminium,and zinc.Magnesium,aluminium,and zinc.Slow.Slow.No,it doesnt.No,it doesnt.Do you think
4、 it is scientificto make Goujian Sword by using copperAfter learning Passage AWhat can we learn from Passage A?It is very important to know_.It is very useful in our daily life.metals can react with different substanceshow How many stages are there in a scientific experiment reportPassage B2025/11/2
5、8Iron in dry airIron in air-free waterIron in ordinary waterUse of cotton wool_Use of oil_Why it rusts_cotton woolnails _ordinary waterrusty nailsoilwaterKeep the nails dry Keep air out of the waterAir in the waternails2025/11/28Conclusion Iron rusts in_.Iron doesnt rust in _and_ordinary waterdry ai
6、rair-free water.2025/11/28half-fill with.boil put inadd to leave resultObserve the following experiment carefully and then write down an experiment reportAim ApparatusMethodResult Conclusionto find out if potassium reacts with cold to find out if potassium reacts with cold water.water.a container,co
7、ld water,potassium,a container,cold water,potassium,filter paperfilter paper（滤纸（滤纸),a pair of tweezers(),a pair of tweezers(镊子）镊子）(1)Half-fill the container with cold water.1)Half-fill the container with cold water.(2)Take a piece of potassium out of the (2)Take a piece of potassium out of the oil.o
8、il.(3)Dry the potasium with the paper.(3)Dry the potasium with the paper.(4)Put the potassium into the water.(4)Put the potassium into the water.The potassium burns.The potassium burns.Potassium reacts with cold water.Potassium reacts with cold water.An Experimennt Report2025/11/28Sum up How can you
9、 do a scientific experiment successfully?First,we need to have an_ and prepare _ for the experiment before we do the experiment.Second,we must use correct_to do the experiment and watch carefully.Then we can get the_and draw a_.aimapparatusmethodsresultconclusion.短语运用be proud of,used to,aimed at,add
10、 up to,keep out of,put.in order,keep ones balance,think of,react with,be supposed to1.In nature,many kinds of materials can each other under certain conditions.2.You ask the teacher if you want to leave the classroom.3.He lifted his gun and the bird in the tree.react withare supposed toaimed at4.All
11、 the money I had no more than one hundered dollars.5.When I saw these photos,I my college days.6.Try to the trouble between them.7.Books should again after you have finished reading them.added up tothought ofkeep out ofbe put in order8.I struggled to on my new skates.9.All the Chinese the success of
12、 Shenzhou.10.Life now is much better than it be.keep my balanceare proud ofused to.翻译句子1.学生人数在迅速增加。（expand）2.做完实验后，一切东西都要有序的排列在器皿柜中。(put.in order)3.这是我过去经常去游泳的小河。(where)Student numbers are expanding rapidly.After the experiment,everything is put inorder in the cupboard.This is the river where I used
13、 to goswimming.4.To find out the truth,youd better do it once by yourself.（不定式作目的状语）5.It is hard to think of a world without metals.为了发现事实，你最好亲自做一次。很难想像一个没有金属的世界。.单项填空1.On hearing the news,the girl rushed out without hesitation,the bag on the floor and in the dark.A.left;lied;disappearedB.leaving;ly
14、ing;disappearedC.leaving;lie;disappearingD.left;lay;disappear解析分析句子知leaving the bag.是分词短语作状语；而the bag和lie间是主谓关系，故用lying的形式；而disappear和rush out是句子的谓语动词；因此B正确。B2.There are both advantages and disadvantages in the scheme proposed,but I think we should benefit by adopting it.A.on balanceB.out of balance
15、C.on the balanceD.off balance解析on balance总的来说。A3.Churches are often built the cross in the West.A.in form ofB.in the form ofC.with form ofD.in a form of解析in the form of.以样的形式；呈现样的形式。B4.When,metals.A.heating;extendB.heated;extendC.heating;expendD.heated;expand解析metal和heat为动宾关系，故用heated,完整形式是：When it
16、is heated,由常识知加热时铁膨胀，故用一般现在时。D5.They will start their project at helping the poor children to be educated in Chinas west.A.aimsB.aimingC.being aimedD.aimed解析分析句子知project和aim at之间是主谓关系，故用其-ing形式aiming。B6.After a long discussion about the advantages and disadvantages of the plan,they finally came to a
17、(n)that it was practical.A.decisionB.opinionC.conclusionD.impression解析come to a conclusion得出结论。空后的that it was practical是conclusion的同位语。C7.of the people on the Net Chinas economy is among the strongest in the world.A.Four fifth;believesB.Four fifth;believeC.Four fifths;believeD.Four fifths;believes解析
18、考查分数表达和主谓一致。当分数中分子大于1时，分母需用复数，故排除A、B两项；“分数/百分数+of+名词”作主语时，谓语动词的单复数取决于名词，本句中people为复数，故选C。C8.The flight CA9525 for 1130 a.m.is to be put off due to the stormy weather.A.ordinaryB.commonC.formalD.regular解析本题考查形容词辨析。regular正常的；通常的；ordinary普通的，长相一般的；common常见的；formal正式的。D9.Any suggestion?Youd better the
19、last sentence as it is rather misleading.Sounds reasonable.Then could you a good ending to it?A.put out;increaseB.leave out;addC.find out;findD.knock out;choose解析leave out此处表示“删除，省略”；add表示“加上”。根据句意选B项。B10.Mrs.Brown was to have left for France last week,but something else delayed him.A.designedB.able
20、C.possibleD.supposed解析be supposed to do.本应该,原来；be designed to do.打算做。根据空后的to have left知D项正确。D11.It was difficult to guess what his to the news would be.A.reactionB.opinionC.commentD.impression解析ones reaction to sth.表某人对的反应，此时介词用to。A12.Isnt rude him to talk to his mother like that?A.that;forB.that;of
21、C.it;forD.it;of解析本题考查句式：It is+adj.+of sb.+to do sth.的否定疑问形式。D13.Have you got in touch with Tom?Oh,sorry.I couldnt his phone number at the moment.A.think aboutB.think overC.think outD.think of解析此题考查think短语辨析。think about考虑；think over认真考虑；think out想出；think of想起；记起。D14.This is a piece of board at the ga
22、te of the construction,which reads：without permission.A.Keep outB.Keep awayC.Keep offD.Keep up解析此题考查keep的搭配。keep out留在外面;keep away（from）远离；keep off（使）避开；不介入；keep up保持。根据句意“未经许可，不得入内”。A15.Bob,are you free at the moment？I have to ask you some questions.A.Its a pleasureB.Ask,pleaseC.Help yourselfD.Yes,go ahead解析Go ahead.问吧；Its a pleasure.是别人表示感谢时的用语；Help yourself.自己来吧！B项为汉式英语。D返回
