Unit 6 When was it invented? Section B (3a~Self Check)课时作业（含答案）

Unit 6 Section B (3a~Self Check)
【基础性作业】
一、单项选择
( )1.A father in the UK has 　　　　a wonderful idea to send his kids to school on time. He takes his sons to their school in a white tank (坦克).
A.looked up to
B.made up
C.come up with
D.shown up
( )2.He asked me 　　　　football in the street.
A.not play B.not to play
C.don't play D.not playing
( )3.This kind of metal is used 　　　　planes.
A.as make B.for made
C.by making D.for making
( )4.He is an honest boy. I have no reason to 　　　　what he said.
A.hear B.doubt
C.repeat D.believe
( )5.About 5.,00.0. cars 　　　　in the factory last month.
A.were produced
B.have produced
C.was produced
D.will be produced
【拓展性作业】
二、阅读理解
(跨学科·科学)Milk was one of the main human foods long before history was written. It will probably remain one as long as there are animals that give milk.
The old word “milk” came from Sanskrit (梵文), one of the oldest languages known to men. A very old picture of milking animals has been found. It was drawn five thousand years ago. People got their milk from their own animals. But in modern times new inventions made the milk industry (工业) a big business. In 18.51. Gall found a way to take some of the water from milk. This made it keep longer. Four years later, Louis Pasteur introduced a way to kill the bacteria (细菌) in milk. And in the same year a special milk bottle was made. This was followed by the invention of machines that could fill bottles with milk. These discoveries meant that milk could be stored longer.
Some people believe that drinking milk will become less popular than it has been. But remember how long milk has been an important food and think of the many ways in which it is useful. It seems safe to say that milk industry will always be important.
6.When did people begin to get milk from animals
7.What kind of language is Sanskrit
8.Why did people take some of the water from milk
9.When was the special milk bottle made
【综合性作业】
三、书面表达
计算机在我们的生活、工作中的作用越来越大,你知道计算机的起源与发展吗 请你结合计算机的发明时间(19.46.年)、外形、用途等方面,写一篇80.词左右的短文,谈一下它的发展变化,并谈谈你对未来计算机的畅想。
The Computer
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参考答案
Section B (3a~Self Check)
基础性作业
1~5　CBDBA
拓展性作业
6.Long before history was written.
7.One of the oldest languages.
8.Because this made milk keep longer.
9.In 1855.
综合性作业
书面表达
The Computer
　　The computer is becoming more and more important in our daily life. Do you know when the computer was invented
　　The computer was invented in 1946. At that time, it was very huge. With the development of science and technology, the computer has grown smaller. Now there are many kinds of computers, such as personal computers and laptops. The computer is a useful tool in our life. For example, it can send some messages to foreign friends by email. What's more, it can share information with others through the World Wide Web. We can also listen to music or play games on the computer. It makes us relax.　　It's hard to imagine what our life would be like without computers. I think computers will be more convenient and they are going to change our life completely in the near future.