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1、Module 5 A Lesson in a Lab,2019/7/20,To know some metals and their reactions with some substances To learn how to do an experiment To be able to retell the main points in the text To build up the love for science,Goals,2019/7/20,potassium,sodium,calcium,magnesium,aluminium,zinc,iron,copper,2019/7/20
2、,1.The Different Uses of Metals 2.The Reaction of Metals 3.The Reaction of Metals with Oxygen,Choose the best title for Passage A.,Scanning,2019/7/20,Read Passage A again and answer the questions,Which metals react the most with oxygen and water? What happens when you heat calcium in oxygen? Which m
3、etals react with steam? 4. Does iron have a slow or fast reaction with steam? 5. Does copper react with water?,Potassium,sodium and calsium.,It burns to form an oxide.,Magnesium,aluminium,and zinc.,Slow.,No, it doesnt.,Do you think it is scientificto make Goujian Sword by using copper,After learning
4、 Passage A,?,What can we learn from Passage A? It is very important to know_ _. It is very useful in our daily life.,Harvest,metals can react with different substances,how,?,aim,result,conclusion,method,apparatus,How many stages are there in a scientific experiment report,Fast reading,Passage B,2019
5、/7/20,cotton wool,nails, _,_,_,_,_,ordinary water,rusty nails,oil,water,Keep the nails dry,Keep air out of the water,Air in the water,nails,2019/7/20,Conclusion,Iron rusts in_. Iron doesnt rust in _ and_,ordinary water,dry air,air-free water .,2019/7/20,half-fill with,boil ,put in,add to ,leave ,res
6、ult,Observe the following experiment carefully and then write down an experiment report,to find out if potassium reacts with cold water.,a container, cold water, potassium, filter paper（滤纸), a pair of tweezers(镊子）,(1)Half-fill the container with cold water. (2)Take a piece of potassium out of the oi
7、l. (3)Dry the potasium with the paper. (4)Put the potassium into the water.,The potassium burns.,Potassium reacts with cold water.,An Experimennt Report,2019/7/20,Sum up,How can you do a scientific experiment successfully? First, we need to have an_ and prepare _ for the experiment before we do the
8、experiment. Second, we must use correct_to do the experiment and watch carefully. Then we can get the_and draw a_.,aim,apparatus,methods,result,conclusion,.短语运用 be proud of,used to,aimed at,add up to, keep out of,put.in order,keep ones balance,think of,react with,be supposed to 1.In nature,many kind
9、s 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 with,are supposed to,aimed at,4.All the money I had no more than one hundered dollars. 5.When I saw these photos,I my college days. 6.
10、Try to the trouble between them. 7.Books should again after you have finished reading them.,added up to,thought of,keep out of,be put in order,8.I struggled to on my new skates. 9.All the Chinese the success of Shenzhou . 10.Life now is much better than it be.,keep my balance,are proud of,used to,.翻
11、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 in,order in the cupboard.,This is the river where I used to go,swimming.,4.To find out the truth,youd better do it once by yourself.
12、（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;disappeared B.leaving;lying;disappeared C.leaving;lie;disappearing D.left;lay;disappear 解析
13、 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。,B,2.There are both advantages and disadvantages in the scheme proposed,but I think we should benefit by adopting it. A.on balance B.out of balance C.on the balance D.off balance 解析 on balance总的来说。,A,3.
14、Churches are often built the cross in the West. A.in form of B.in the form of C.with form of D.in a form of 解析 in the form of.以样的形式；呈 现样的形式。,B,4.When ,metals . A.heating;extend B.heated;extend C.heating;expend D.heated;expand 解析 metal和heat为动宾关系，故用heated, 完整形式是：When it is heated,由常识知加 热时铁膨胀，故用一般现在时。,
15、D,5.They will start their project at helping the poor children to be educated in Chinas west. A.aims B.aiming C.being aimed D.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。,B,6.After a long discussion about the advantages and disadvantages of the plan, they finally came to a(n) that it was practical. A.decision B.opinion C.conclusion D.impression 解析 come to a conclusion得出结论。空后 的that it was practical是conclusion的同位 语。,C,of the people on the Net Chinas economy is among the strongest in the world. A.Four fifth;believes B.Four
