1、1Module 5 A Lesson in a Lab【美文阅读】 How to create a rocket balloonTo create a rocket balloon, youll need the following items: a balloon (any size), a piece of string (10 to 25 feet), a straight drinking straw (吸管), tape.First, you have to create a “track” for the rocket balloon to run on. You begin by
2、 tying one end of the string to a tree, post, chair, or any other strong support. Then slide (使滑动) the free end of the string through the drinking straw. Tie the other end of the string to another support (generally at the same height). Make sure the string is taut(绷紧的) when tied down.Move the straw
3、 to one end of the string. Fill the balloon with air. Hold the neck tightly to keep it full. Using two pieces of tape to attach the balloon to the straw. The mouth of the balloon should point toward the nearest support. Then release the balloon and watch it go!When the mouth of the balloon is held c
4、losed, the air in the balloon has nowhere to go, so it pushes back to keep the balloons shape. However, since the mouth is open when you release it, the air has somewhere to go. The air pushes out the mouth of the balloon. Since the air is now moving, the rocket balloon also moves. This follows Newt
5、ons Third Law of Motion (for every action theres an equal and opposite reaction)There is friction (摩擦) between the string and the straw, but the straw is made of material thats smooth and the weight of the balloon and straw is light, so the overall frictional force is very small.It is the same when
6、rockets work. They burn fuel to push matter out the back forcefully. The rocket moves in response to this. Since a rocket weighs much more than a balloon, of course, it takes more fuel to get it moving.【诱思导学】 1Do you like doing scientific experiments? What are the stages of a 2scientific experiment?
7、.【答案】 Yes, I do. The stages are as follows: aimmethodresultconclusion.2What will happen when the air in the balloon is receased?.【答案】 When the balloons mouth is open，the air will push the balloon to move.Period Previewing(教师用书独具)教学目标本课时主要是通过学生对学案所给出的内容的学习，了解本课文中所出现的词汇，初步了解课文以及相关的背景知识，对下一堂课对课文的全面理解起到
8、一个铺垫作用。教学地位该部分列举了与科技、实验有关的词汇，并设计了三个练习活动。通过这三个活动，学生可以初步熟悉这些词的意义，为以后的各项学习活动做好准备。(教师用书独具)新课导入建议(1)Ask the students to read through the questions quickly.3How does water exist?If you heat a metal, what change will happen?What is steel made from?What is the earths surface mainly covered by?How far is the
9、 sun from the earth?How old is the earth?Which is larger, the earth or the moon?(2)Ask the students to listen to the tape and find out the answers to these questions.(3)Put the students into pairs or groups of four and compare their answers.(4)Call back the answers from the class.Suggested answers：W
10、ater exists as a solid, a liquid and a gas.When you heat a metal, it expands.Steel is a mixture of iron and other substances.Twothirds of the earths surface is water.The distance of the sun from the earth is 150,500,500 km.The earth is 4.6 billion years old.The earth is fortynine times larger than t
11、he moon.教学流程设计导入新课。学生阅读“美文阅读”与“诱思导学”(见学案第 57页)。学生就“美文阅读”进行讨论，统一答案。让学生快速阅读课文(见课本第 4445 页)，并完成“篇章结构”(见学案第 57页)。师生共同讨论并统一答案。学生再次阅读课文(见课本第4445 页)并完成“语篇理解”(见学案第 58页)。学生共同讨论，并让学生发表各自见解，最后统一答案。学生再次仔细阅读课文(见课本第 4445 页)，进行深度理解，并完成“课文缩写”(见学案第 58页)。老师指导学生讨论，共同找出答案。让学生完成“知识初探”部分(见学案第 58页)。学生讨论，并让学生代表发表他们讨论得出的答案。
12、老师予以更正。让学生根据所给出的表格进行自我评估(见学案第 58页)。老 师 布 置 作 业 ， 让 学 生 看 课 本 第 44 45页 并 完 成 课 本 第 44页 Part 1， 2， 3， 4和 第 46页 Part 5， 6， 预 习 学 案 Period 见 学 案 第 59 62页 。(对应学生用书第 57页)4.篇章结构阅读文章，完成下面表格(每空不超过 3个词)in 6._ airResult: The nails have not rusted. Conclusion：7._ does not rust.in the8._ waterResult: The nails d
13、o not rust in the 9._. Conclusion: Iron does not rust.Iron reaction 5._In10._ waterResult: The nails rust in the tube. Conclusion: Iron rusts.【答案】 1.substances 2.in order 3.at the top 4.at the bottom 5.experiment 6.dry 7.Iron 8.airfree 9.tube 10.ordinary.语篇理解阅读 P4445 的 Reading and Vocabulary部分，从每题所给
14、的 3个选项中选出最佳答案Passage A1This passage mainly talks about .Athe kind of metalBwhat kind of metal reacts mostCthe different reactions of metals2Which of the following metals reacts the most with water?ACopper. BIron. CAluminium.3When heated in oxygen， will react partially.Azinc Bcopper Cpotassium4Accord
15、ing to the passage，it can be inferred that will have less use in making kitchen tools.Aaluminium Biron Csteel【答案】 14 C C B APassage B5The experiment shows us .Ahow iron rusts with airBiron is quite easy to rustChow iron reacts with air and with water6 “Airfree water”means .5Aair with a lot of waterB
16、air without waterCwater without air7If some clean iron nails are put in a damp place for a week，the nails will .Arust Bnot rust Cform an oxide【答案】 57 C C A.课文缩写用所给单词或短语的正确形式完成课文缩写at the top；react with；add.to； at the bottom；substance；reaction；rust；keep.out of；put.in order；boilFrom Passage A we know t
17、he 1. of metals with some 2. such as water and oxygen can be 3. . It can be seen the metals react most 4. and the metals react least 5. . When you heat calcium in oxygen, youll find it burns to form an oxide. And it can easily be seen copper doesnt 6. water.In the first part of the experiment in Pas
18、sage B, the air is dry, not wet. It shows that iron doesnt 7. when the air is dry. In the second part of the experiment, you must 8. the water to make sure there is no air in it. You 9. some oil to the water because this 10. air out of it. It shows that iron doesnt rust in water that has no air in i
19、t.【答案】 1.reaction 2.substances 3.put in order 4.at the top 5.at the bottom 6.react with 7.rust 8.boil9add 10.keeps.词义搭配1expand Aa particular time or state that something reaches as it grows or develops2contract Bsomething you hope to achieve by doing something3substance Cthe tools, machines, clothes
20、 etc.that you need to do a 6particular job or activity4mixture D(cause sth.to) become greater in size, number or importance5stage Esomething you decide after considering all the information you have6conclusion Faverage, common, or usual, not different or special7aim Ga particular type of solid, liqu
21、id, or gas8equipment Hif a chemical substance reacts, it changes when it is mixed with another chemical substance9react Ia liquid or other substance made by mixing several substances together, especially in cooking10ordinary Jmake or become smaller or shorter【答案】 1.D 2.J 3.G 4.I 5.A 6.E 7.B 8.C9H 10
22、.F.短语填空add.to.； put.in order； keep.out of； react with； think of； at the bottom1You should the dog our babys room.2I will my childhood every time I see the picture.3It has become her habit to everything in her room .4Please some sugar my coffee.5Iron water and air to produce rust.【答案】 1.keep；out of 2
23、.think of 3.put；in order4add；to 5.reacts with. 句型背诵1Twothirds of the earths surface is water.地球表面的三分之二是水。2It is hard to think of a world without metals.很难想象一个没有金属的世界。3When we use metals，it is important to know how they react with different substances.使用金属时，要了解金属和不同的物质如何发生反应，这一点很重要。7Period Introducti
24、on &Reading and Vocabulary(教师用书独具)教学目标(1)熟记学案中所列出的单词和短语。(2)通过学案中所给出的重点单词和重点短语的学习，让学生能够正确理解和使用这些单词和短语，能够运用这些词语造句。(3)通过对这些词汇的理解能够更深层次的理解课文，并通过课文加深对这些词汇的理解，更加熟练的运用这些词汇。(4)通过对本课文的理解，让学生学会用英语记录实验过程，以提高学生的书面表达能力。教学地位该部分继续引入与本模块主题有关的词汇，并通过两个练习使学生熟悉这些词汇，同时这些练习也为接下去的阅读活动作了铺垫。介绍了金属的氧化反应，并列出了显示部分金属活动性能的表格。围绕着课
25、文，设计了六个与课文内容和词汇有关的练习。通过这些练习，学生可以熟悉课文内容和学会使用有关的词汇。(教师用书独具)新课导入建议教师做一个简单的实验，边做边说，引入教材上所涉及的单词。如：8We are going to do an experiment today. I need these things to do the experiment, test tubes, Bunsen burner, salt.When we do an experiment, we should first of all have an aim. We should use proper methods.
26、We should find out the result and get a conclusion.教学流程设计导入新课。老师检查上堂课所布置的作业，检查学生对学案预习的情况。让学生就“课堂互动探究”(见学案第 5962 页)进行讨论，让学生各自发表自己的见解，然后让各个讨论组派代表汇报各自讨论结果。让学生针对各自不同的意见展开讨论，然后老师给出详细正确答案。老师针对难点和重点词汇进行讲解，并补充学案中所遗漏的重点词汇，补充一些必要的练习。让学生再次阅读课文(见课本第 4445 页)，以加深对所学单词与短语的理解。让学生完成“自我评估”(学案第 62页)布置作业。让学生完成“课时作业”(见学
27、案第 103页)和预习 Period (见学案第 6264 页)。(对应学生用书第 59页)1Twothirds of the earths surface is water.(教材 P41)地球表面三分之二是水。“分数(百分数)of名词(代词)”作主语时，谓语动词的单复数形式取决于 of后的名词或代词的单复数形式。Only onethird of the work has been done by now.到现在为止仅完成了三分之一的工作。Twothirds of the students agree to hold an evening party for their teachers b
28、irthday.三分之二的学生同意为老师的生日举行一个晚会。【提示】 在英语中，表示分数时，分子用基数词，分母用序数词；分子大于 1时，表示分母的序数词要用复数，并且要在分子和分母之间加上连字符“” 。91/3 onethird 4/5 fourfifths 3/7 threesevenths完成句子我三分之一的业余时间都用来读书。reading books. 我们学校五分之四以上的学生来自农村。the countryside.【答案】 Onethird of my spare time is spentOver fourfifths of the students in our school
29、 are from2It is hard to think of a world without metals. (教材 P44)很难想象一个没有金属的世界是什么样子。本句中 it为形式主语，不定式短语 to think of a world without metals是真正的主语。It is not easy to make him change his mind.让他改变主意不容易。在 It is adj.(for sb.)to do sth.句型中，形容词只能说明不定式所表示的行为的性质或特点，不能说明不定式的执行者。常见形容词：difficult, easy, hard, impor
30、tant, impossible, necessary, possible等。在 It isadj.(of sb.)to do sth.句型中，形容词说明不定式的逻辑主语的品行、性格、性质等，该句型通常可改为 sb.beadj. to do sth.常见形容词：nice, good, stupid, silly, careful等。It isadj./n.that从句It is no good/usedoing sth.做某事是没有好处/用的It is my duty to care for the patient.照料那位病人是我的职责。I find it is necessary to t
31、ake exercise every day.我认为每天锻炼很有必要。It is no good staying up too late.10熬夜没有好处。It is quite clear that he has read the book.很显然，他读过这本书。【对接高考】 (2012浙江高考)No matter how bright a talker you are, there are times when its better silent.Aremain Bbe remainingChaving remained Dto remain【解析】 句意：不管你多么能言善辩，但有时候还是
32、保持沉默更好。该题考查“it is形容词to do”这一句型，句中 to remain silent“保持沉默”是真正的主语，it是形式主语。【答案】 D完成句子有必要把这一切都告诉他父亲吗？his father everything?对我们来说，学好英语很重要。learn English well.众所周知，地球围绕太阳运转。the earth moves around the sun.【答案】 Is it necessary to tell Its very important for us to It is wellknown that3react v反应，起作用，反对Which of the metals in the table reacts the most with oxygen and water？(教材 P44)表格中的金属哪一个与氧气和水反应最厉害？To do this you need to react quickly.要做到这一点，你需要快速反应。react to 对作出反应，起反应react on/upon对有影响react with与产生化学反应react against反对；反抗
