1、,Science is a way of thinking much more than it is a body of knowledge. 科学与其说是一套知识体系，不如说是一种思维方式。,单元核心素养：思维品质,Laboratory Safety Rules Science is a hands-on(实际操作的) laboratory class.You will be doing many lab activities which may need the use of chemicals or equipment.To make sure of a safe science cla
2、ssroom，we provide you with a list of rules.These rules must be followed at all times. GENERAL GUIDELINES(准则) 1.Never work alone.No student may work in the lab without a teacher present. 2.When first entering a lab，do not touch any equipment，chemicals，or other materials in the lab until you are asked
3、 to do so.,话题导入,3.Do not eat，drink，or chew gum in the lab.Do not use lab glassware as containers for food or drink. 4.Know the positions and operating procedures(程序) of all safety equipment，including the first-aid kit and the fire extinguisher(灭火器).Know where the fire alarms and the exits are. 5.Che
4、ck the labels(标签) on chemical bottles twice before removing any of the chemicals.Take only as many chemicals as you need. 6.Most chemicals in the lab are considered to be dangerous.Do not touch，taste，or smell any chemicals unless specifically asked to do so.,7.At the end of your experiment，clean eve
5、rything carefully and return your equipment to where you got it.Wash your hands with soap and water after performing all experiments. WHAT TO WEAR 1.Dress properly during a lab activity.Long hair must be tied back and shoes must completely cover the feet. 2.Contact lenses should not be worn in the l
6、ab unless you are allowed by your teacher. 3.Any time chemicals，heat，or glassware is used，students will wear lab goggles(护目镜).Nobody should break this rule!,ACCIDENTS AND INJURIES 1.Report any accident or injury to the teacher immediately. 2.If a chemical should get into your eye(s) or onto your ski
7、n，go to see a school nurse immediately.,1.Students can work in the lab by themselves if a teacher isnt present. ( ) 2.You can drink when thirsty，but you cant eat when hungry in the lab. ( ) 3.You must never wear contact lenses in the lab.( ),查看答案,根据上文判断正(T)误(F),F,F,F,PART 1,读前清障,PART 2,课文理解,Period O
8、ne Introduction & Reading and VocabularyPre-reading,PART1,读前清障,第一组,查看答案,1.liquid A.膨胀 2.expand B.混合物 3.contract C.液体 4.substance D.收缩 5.mixture E.物质,匹配左边的单词与右边的汉语意思,6.electricity A.结论 7.stage B.目标；目的 8.conclusion C.反应 9.aim D.电 10.reaction E.阶段；时期,第二组,查看答案,11.electrical A.(化学)反应 12.equipment B.生锈 13
9、.react C.设备；装备 14.partial D.部分的；局部的 15.rust E.与电有关的；用电的,第三组,查看答案,16.boil A.溶解；分解；分离 17.ordinary B.形成 18.float C.漂浮 19.form D.煮；煮沸 20.dissolve E.普通的；平常的,第四组,查看答案,PART2,课文理解,1.Read Passage A and choose the best title for it. A.The Different Uses of Metals B.The Reaction of Metals C.The Reaction of Met
10、als with Oxygen,Step 1 Fast-reading,查看答案,2.What should be included in a description of an experiment according to Passage B? (1) (2) (3) (4) (5)_,查看答案,Aim,Apparatus,Method,Result,Conclusion,.Choose the best answer according to Passage A. 1.Which of the following metals reacts the most with water? A.
11、Copper. B.Iron. C.Aluminium. D.Sodium.,Step 2 Careful-reading,查看答案,2.When heated in oxygen， will react partially. A.zinc B.copper C.potassium D.all metals,3.According to the passage，it can be inferred that will have less use in making kitchen tools. A.aluminium B.iron C.steel D.copper,查看答案,.Choose t
12、he best answer according to Passage B. 1.The experiment shows us . A.how iron reacts with air B.iron is quite easy to rust C.how to prevent iron from rusting D.how iron reacts with air and with water,查看答案,2.“Air-free water” means . A.air with a lot of water B.air without water C.water with a lot of
13、air D.water without air,查看答案,3.If some clean iron nails are put in a damp place for a week，the nails will . A.rust B.not rust C.form an oxide D.keep the place dry,查看答案,After reading the text，please fill in the following blanks. Different metals have different uses.When we use metals，it is important
14、1._ (know) how they react with different substances.The 2. (react) of metals with these substances can 3. (put) in order.From the table，we can find that potassium reacts most with oxygen and water 4. copper doesnt react with water.When we heat calcium in oxygen，it burns 5. (form) an oxide.,查看答案,Step
15、 3 Post-reading,to know,reaction,to form,be put,while,In the second part of the experiment，you must boil the water 6. (make) sure there is no air in it.You add some oil to the water 7. this keeps air out of it.It also shows that iron doesnt rust in water 8. air in it.9. ，the nails rust in the tube w
16、ith ordinary water in the third part of the experiment.That is 10._iron reacts with air-free water and with ordinary water.,查看答案,to make,because,without,However,how,1.Different metals have different uses，for example，steel is used in cars，and iron is used in electrical equipment. 句式分析 本句的主干为：Differen
17、t metals have different uses。for example作插入语，其后的句子对主句的内容进行举例说明，是由并列连词and连接的两个分句。 自主翻译 _ _,不同的金属有不同的用途，比如，钢材被用于汽车中，铁被用于电气设备中。,Step 4 Sentence-learning,查看答案,2.When we use metals，it is important to know how they react with different substances，for example，water and oxygen. 句式分析 本句为复合句。when引导的是时间状语从句；it
18、为形式主语，不定式to know.为真正的主语；know后面是how引导的宾语从句。 自主翻译 _ _,当我们使用金属时，了解金属和不同的物质 (例如水和氧气)如何发生反应很重要。,查看答案,3.Here is a table with the metals that react most at the top，and the metals that react least at the bottom. 句式分析,完全倒装句,句子主干：,Here is a table,with短语作定语修饰table,with the metals,and the metals,that react most at the top,that定语从句修饰metals,that react least at the bottom,自主翻译 _,这里有一张表格，反应最强烈的金属在上面，反应最弱的在下面。,查看答案,