1、Chapter 4 Numbers Revision,Rivision of the words,abacus,brain,calculator,lightning,1. _: almost2. _: correct and true 3. _: strong4. _: of or like people, not animals 5. _: on the other side in a game, fight, etc.6. _: a group of things that work together7. _: grow bigger or stronger;become better8.
2、 _: give orders to a computer,nearly,accurate,powerful,human,against,Say and spell the words according to the meanings,system,develop,program,9. _: use numbers to find answers,A _ is a _ machine. It helps people to _ faster and more accurately because it can do a difficult _ in a flash.,calculator,c
3、alculating,calculate,calculation,calculate,calculate(v.)计算,calculation(n.)计算,calculator(n.)计算器,calculating(adj.)计算的,10. _: make for the first time,Benjamin Franklin was a famous _ .He _ the lightning rod（避雷针).It is a great _.,inventor,invented,invention,invent (v.)发明,inventor (n.)发明家,invention (n.)发
4、明,invent,11. _: that are going to be mentioned next,Can you answer the _ questions?_ me please. Ill show you the way.,following,Follow,following,following (adj.)下列的,follow (v.)跟随,12. _: not dead,Can all _ things _ for several days without food?13. _ : very surprising We felt _ when we read the _ sto
5、ry.,living,live,amazed,amazing,living (adj.)活着的,live (v.)生活,living,amazing,amazing (adj.)令人惊奇的,amazed (adj.)感到惊奇的,Revision of the phrasesSay the phrases according to the meanings,1. _:long,long ago2. _: not less than3. _: in a very short time4. _:not in the same way5._:in all ones life6. _: work out
6、 the problem,in ancient times,at least,in a flash,in different ways,in ones whole lifetime,solve the problem,1. We can use water _, such as washing clothes or cooking food. 2. Li Bai was a great poet who lived _. 3. It took us one hour to _,in different ways,in ancient times,solve the problem,at lea
7、st in a flash in ancient times in different ways solve the problem in ones whole lifetime,4. Your teacher looks old. He must be _ 50 years old.5. My father lived in China _.6. The computer finished the calculation _.,at least,in his whole lifetime,in a flash,Keep the same meaning of each sentence,1.
8、 I spent two days doing this job. It _ me two days _ do this job.2. He is strong. He can carry the heavy suitcase. He is _ strong _ he can carry the heavy suitcase. He is strong _ _ carry the heavy suitcase.,took,to,so,that,enough,to,Revision of the sentence structures,3. The coat is expensive. He c
9、ant buy it. The coat is _ expensive _ he cant buy it. The coat is _ expensive for him _ buy. The coat is not _ _ for him to buy.,so,that,cheap,enough,too,to,Read the text,Revision of the PassageAnswer the questions about the text,What did people write in many different ways? 2. In what way did peopl
10、e count?3. Who invented the zero?4. Why was the zero a very important invention?,People wrote numbers in many different ways.,People counted in tens.,The Indians invented the zero.,Because it made it easier to write big numbersand to calculate.,5. Which was one of the first calculating machines? 6.
11、Why do people still use abacuses today? 7. What can a modern electronic calculator do? 8. Why do we say computers are very powerful?,One of the first calculating machines was an abacus.,Because they are fast and accurate.,It can add, subtract, multiply and divide. It can also calculate percentages a
12、nd square roots.,Because it can do a calculation that you could not do in your whole lifetime in a flash.,9. How long did Shakuntalas brain take to find the answer?,Shakuntalas brain took fifty seconds to find the answer.,Fill in the blanks according to the passage,Everyone knows the international _
13、 of numbers. In ancient times, numbers were written in _ ways, but counting was nearly always in _. Everyone uses the number _ 1 to 9 plus zero. The system was invented by the Indians. _ makes it easier to write big numbers and to _.,language,tens,system,Zero,calculate,different,There are three calc
14、ulating machines, the abacus, the modern _ calculator and the computer. Which is more powerful, the computer or the human _? There was a competition between an amazing lady who is from _ and a powerful computer. However, the lady won. Her brain _ less time to find the answer, like _. Computers cant
15、do anything by themselves. Someone had to first _ the computer.,electronic,brain,India,took,lightning,program,What is each part mainly about?,P1: different ways of writing ancient numbers,P2: the system of numbers,P3: three calculating machines,P4: a powerful living computer,Group discussion,In what
16、 way can computers help us in daily life?,help.to use. to.with. make it easier to.,Homework,1. Read and try to recite the text2. Write a passage of at least 60 words on the topic “My views on the computer”,Goodbye,； http:/ 西安公司注册 dth15ewc 放你，想找你时，你还肯来吗？”它连连点头。宝音奇着，手上不觉一松，它一阵烟的走了。宝音定定神，听洛月唤：“姑娘，姑娘，你魇
17、着了么？”宝音张开眼来，原来刚刚也还是作梦，再要追梦前之梦，便记不清了。然而把她从那梦中惊出的、令人不悦的怪响却还在继续，她辨了辨，是来自窗外的，便问洛月：“外头在做什么？”洛月安慰宝音：“没什么事。人家理院子哪。姑娘再歇息歇息？”大清早，哪个人家，到 窗前理什么鬼的园子！宝音省得必有隐情，便道：“你不说么？那我问乐韵去。”洛月顿时急了：“姑娘，别别！其实也没什么事儿。那两株木芙蓉忽尔生虫子了，管事的说怕侵到其他树木，对姑娘身体也不好，所以，准备迁出去养一养，养好了，再移回这里来。”开玩笑！宝音嗓门提高了一点：“乐韵！”乐韵如今可不敢掉以轻心，天微亮就起来倚在外间听候差遣了，闻得叫，进了屋，行
18、了一礼：“姑娘您也被外头声音吵着了？”宝音点头。“姑娘，洛月肯定是怕您心烦。”乐韵先替洛月袒护一句，倒叫洛月受宠若惊。再后面的话，乐韵可就不客气了：“不过这事，长远也瞒不住姑娘。一早，七 派了一伙人来，说四 昨儿见了这花很喜欢，故要把这两株树移过去。”巧取豪夺，夺到两棵树的身上！有这么欺人的么？宝音倒笑起来，道：“下去吧，给我准备些热水，我要擦身。另外，早饭有没有滚热的粥么？”洛月立刻道：“有。”乐韵退下去准备热水毛巾了。宝音问洛月：“下粥菜是哪几样？”“今儿他们拿过来的是五香黄豆腐、脆腌菜心、凉拌雪菇、清拌笋尖，姑娘吃得下么？想换么？”宝音听着这几样，都是淡而养身的小菜，厨房里没有乱来，含笑
19、道：“不用换了。你去拿来给我吧。”又按一按洛月的手：“你心疼我，我知道。放心！我再也断不会给自己找不痛快了。些须身外物，我还看得开。”被人挖树，固然可恨，但跳开了想想，树也不是宝音的，是苏家的。苏家这个院里的树、移到那个女儿窗下，又打什么不紧？大仇还没法儿报，若再为这个生气，也没几天活头了。宝音不愿动气伤身。洛月端粥去，一边儿欣慰 会养身了，一边儿却越发心疼 。任外头吵他们的。宝音关起门窗来享受自己的 日子。热腾腾的把睡出来的冷汗擦了，换身衣裳，就着几样清爽小菜喝了两大碗红米热粥，外头忽然又有了不同的声音。应该是树木咯吱咯吱的倾斜，枝叶沙啦作响，交织出的声音。像那个夜晚，宝音在床上挣扎，木头床架和被褥摩擦摇晃，血液在耳膜里奔流，咯吱咯吱，哗啦哗啦这是迷茫、震惊、痛苦，求一条生路的声音。“喳啦”，什么东西碎了？很模糊，几乎听不清。在这模糊中又响起尖锐的一声，鸟叫么？但从那些人开始闹腾起，鸟儿替,
