上海培佳双语学校中学部 牛津上海8A Unit 4 Numbers 学案(无答案).doc

八年级 英语Unit Four Numbers【单词和短语】1. 古时候；从前 _2. 用许多不同的方法_3. 十进制 _4. 数字系统_5. 现代电子计算器_6. 给出答案_7. 最早的计算工具之一_8. 在某人的一生_9. 把人脑叫活的电脑_10. 像闪电般计算_11. 花费一分钟_12. 一种国际性语言_13. 用指令给电脑输入程序_14. 从最大的到最小的_15. 一位有惊人大脑的印度妇女_【同义词互换】1. consist of = be made up of2. represent = mean = stand for3. solve = work out4. amazing = surprising5. instruction = order6. ancient = very old7. powerful = strongOur supper is made up of rice, fish, and pork.Our supper _ _ rice, fish and pork._ancient times, people used the stones to kill the animals. a.On b.In c.Over d.At【补充词汇、短语、句型、知识点】1 at least 意为“至少”，“无论如何；不管怎样”。如：He has waited for you_ 30 minutes. (他等了你至少30分钟)At least 的反义词是at most（至多；最多）2Language是名词，意为“语言”。 language 的搭配是speak a language。如：People in different countries_ different_. (不同国家的人说不同的语言。)3. The Indians first invented and developed the 1 to 9 system of numbers.印度人最早发明并建立了从1到9的数字系统。动词Invent 是“发明”，“创造”之意。inventor n.发明者；发明家 Invention n.发明，发明物动词Develop 为“发展”，“开发”之意，如：Computer is an important _ in the world. (invent)Some children_ more slowly than others.有的儿童比其他儿童发育得慢。Develop的派生词有：Development n。发展：Developed a.发达的Developing a.发展中的4. Some people call the brain a living computer 有人把人脑称为“活电脑”Living一词为形容词，解释为“活着的”“健在的”，又如：alive，living这两个词有时会被混淆。以下简述一下它们的区别：通常情况下，alive作表语（be alive），而living一般放在名词前作定语用。如：That great man is still_.那个伟人依然活着All_ things一切生物Some people say he is the greatest_ writer.有人说他是健在的最伟大的作家。【Revision】1. so + a. / ad. + that + . = a. / ad. + enough to + do sth.=too.toHe was too excited to fall asleep. (句意不变)He was _ excited that he _ fall asleep.He was_ _ enough to fall sleep.2. 以方式（介词in）in the same way, in many different waysThey have the same opinions _ many different ways. a.of b.in c.with d.on3. 答案（介词to ）the answer / key to the solution to the problem the entrance to the buildingCan you give me the answer _ the problem?A. of B. to C. in D. from【词性互换】invent (v.) inventor (n.) invention (n.)develop (v.) development (n.) developed (a.)发达的 developing (a.)发展中的calculate (v.) calculator (n.) calculation (n.)electronic (a.) electron (n.)powerful (a.) power (n.) powerless (a.)amazing (a.) amaze (v.) amazement (n.) amazed (a.)1 The girl was so _ that she couldnt say a word. (amaze)2 With the _ of economy, China is becoming stronger and stronger. (develop)3 Computer is an important _ in the world. (invent)4 An abacus was one of the first _ machines. (calculate)5 China is a _ country. (develop)6 . Computers are very _abacuses.(power)【阅读练习】(A)Before Mona Lisa, western painting was famous for its cold environment and serious people. None smiling person could be found in the paintings around the Middle Ages（中世纪）, because people at that time thought happiness was something disrespectful（不敬的） to Jesus Christfor he had been in sadness for people. Even if you were happy, you could only smile before your family. So no one dared to draw happy faces into their work.However, Leonardo da Vinci didnt agree with it. He thought that people have the right to show their happiness to others, and smiling is the most beautiful facial expression. Being happy was not something bad! So, after he was asked by a furrier（皮货商）from Florence to draw a painting for the mans second wife, he invited some interesting people to go with him. When Mona Lisa was being painted, those happy people sat around her. Some were singing, some were playing musical instruments, others were telling jokes to her. All the time, she was in a very good mood. Although she was very shy, she still smiled.Maybe, modern people like you and me have seen a lot of smiling beauties. However, Mona Lisa is, and will be, a milestone in Humanism portraits（人文主义肖像画）, because it is the first painting which gave people a warm feeling. We should respect da Vinci for his braveness and his belief“People are more important than God!”Give short answers to the following questions.1. In Middle Ages, people couldnt smile, did they? _ 2. Why did da Vinci think that people should be allowed to smile to others? _ 3. Who was Mona Lisa? _ 4. Why was Mona Lisa smiling during being painted? _ 5. Why was Mona Lisa unique（独特的） and important in arts history? _ （B）Have you ever seen a greenhouse(温室)? Most greenhouses look like a small glass house. Greenhouses are used to grow plants, especially in the winter. Greenhouses work by trapping heat from the sun. The glass panes(窗格) of the greenhouse let in light but keep heat from escaping. It keeps the plants warm enough to live in the winter.The Earths atmosphere(大气)is all around us. Greenhouse gases in the atmosphere are much like the glass panes in a greenhouse. Sunlight enters the Earths atmosphere, passing through the blanket of greenhouse gases. As it reaches the Earth s surface, land, water, and biosphere(生物圈) take in the sunlight s energy. Some of the energy passes back into space, but the greenhouse gases trap most of it in the atmosphere. It makes our world warmer and warmer.The greenhouse effect is important. Without the greenhouse effect, the Earth would not be warm enough for humans to live. But if the greenhouse effect becomes stronger, it could make the Earth warmer than usual. It may cause problems for humans, plants, and animals.1. What do most greenhouses look like? _.2. What are greenhouses used for? _.3. How does a greenhouse warm enough for plants? _.4. Where does most of the energy go? _.5. What will happen if the greenhouse effect becomes stronger? _.6. Will it cause problems if the greenhouse effect becomes too strong? _.（C） Choose the words or expressions and complete the passageMobile phones are becoming more and more popular not only with grown-ups but also with students. Meanwhile（同时）, they also have become a problem for middle schools in the past few years. Some children have got mobile phones as Christmas or birthday gifts, and more will _1_ want them. Many like SMS because it is easy and _2_. Some parents felt happy because they could get in touch with their children. Some teachers said mobile phone use was a distraction（分心的事）to students during school hours and it also gave them much _3_ in their classrooms. Sometimes students _4_ use phone messages to cheat during exams. A new study found that some teenagers send messages in class and even hurt their fingers because they cant stop using SMS. Many teachers suggested that students should not have phones at school, _5_ if there was a good reason, they could _6_ their phones at school office. Many people think they understand _7_ parents would want their children to have them, but they agree schools should let the students know when they can use their mobile phones.( )1. A.still B.yet C.already D.too( )2. A.lovely B.quick C.hurry D.sharp( )3. A.business B.information C.things D.trouble( )4. A.dare B.have to C.should D.might( )5. A.and B.but C.though D.however( )6. A.miss B.leave C.lie D.fetch( )7. B.whether B.because C.why D.since（D） Read the passage and fill in blanks with proper wordsDear Kitty, News!We have a new flat!The rooms are