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初一教案 第624期


北京171中学  徐晶
Teen makes solar breakthrough (P3)
I. Pre-reading
What do we use to power cars?
Why do we need to develop renewable energy?
Does your family use renewable energy? If so, what kind?
II. While Reading
Choose the answer:
1. Georgia’s uncle complained about the solar panels because _____.
A. they were hard to use
B. they were too expensive
C. they often had problems   
D. they didn’t provide enough power
2. Hutchinson’s solar tracker is special because _____.
A. it uses sensors to control solar panels
B. it can generate a lot of power
C. it uses software to help solar panels follow the sun
D. it was easy to make
3. How much does Hutchinson’s tracker cost?
A. $3,000             
B. $4,000
C. $1,000             
D. $200
4. The story is mainly about _____.
A. a recent eclipse
B. sensors on solar panels
C. how solar panels work
D. a new kind of solar tracker
III. Words in use
1. 我很好奇你怎么比我还来得早。
   I am ________ how you arrived earlier than I did.
2. 昨天早上我们为了赶上早班车起床很早。
  Yesterday morning, we got up early  _____ we could catch the first bus. 
3. 外国朋友们希望能在这个项目上继续合作。
   Our foreign friends _____ keep working on this program.
IV. Post-reading
What do you know about the following forms of renewable energy?
* Solar power
* Wind power
* Tidal power
The ancient birth of chopsticks (P5)
I. Pre-reading
Do you prefer eating with chopsticks or with a knife and fork?
Can you use chopsticks properly?
II. While reading
Choose the answer:
1. What was Dayu’s job?
A. He helped people fight floods.
B. He helped people find clean water.
C. He helped people boil water.
D. He cooked animal meat for his friends.  
2. How did people eat before Dayu used chopsticks?
A. They ate with their hands.
B. They ate with animal bones.
C. They ate with twigs.
D. They ate with big pots.
3. The six bronze chopsticks in the Ruins of Yin _____.
A. were used for celebrations
B. were made more than 3,000 years ago
C. were once used by Dayu
D. were found in Hebei province
4. According to the story, which of the following is TRUE?
A. People in ancient China were always hungry.
B. Dayu did not like using chopsticks.  
C. People started using chopsticks during the Shang Dynasty.
D. At first, chopsticks weren’t used to eat food.
III. Words in use
Fill in the blanks:
  [hurry up       pick up        date back to]
1. This tradition _________ 2,000 years ago.
2. _________ or we'll miss the train.
3. Whose turn is it to _________ the children after school?
IV. Post-reading
    Do you know why we call chopsticks “筷子”?
    In ancient written Chinese, the character for chopsticks was zhu (箸). Although it may have been widely used in ancient spoken Chinese, it was later replaced by the character kuai (快), meaning "quick".
3-D printing builds homes of the future (P6)
I. Pre-reading
How long did it take to build houses hundreds of years ago?
What about these days?
Do you think it could someday be possible to print a house in just a few hours?
II. While readingFill in the blanks:
1. ____________ is the first country to build 3-D printed houses.
2. Scientists will build ____________ houses with 3-D printers.
3. For the first house, there will be ____________ bedrooms. But only the ____________ will be 3-D printed.
4. A 3-D printer will print the house with a special cement. The cement looks like    ____________.
5. Scientists hope that most parts of the ____________ house will be made with 3-D printing.
6. 3-D printed houses use ___________ cement than traditional houses, and they can be made in almost any ____________.
III. Words in use
1. 3-D printed houses will soon _________
2. Cover the meat with _______ (一层) cheese.
3. Using less cement to build houses  _________ (对……好) the environment.
IV. Post-reading
What is 3-D printing technology?
What would you print with a 3-D printer?
Talk with your friends about the things you would print.
II. 1. B。根据第1段第3句…as they were very expensive可知,叔叔抱怨的主要原因是太阳能板太贵。
2. C。根据第3段倒数第2句It uses software – written by Hutchinson – that can control solar panels可知,她的太阳能板是由软件控制的。
3. D。根据第3段最后一句可知,她的太阳能板只需要200美元。
4. D。本文主要讲述了一个13岁女生的新发明。
III. 1. wondering  2. so that    3. hope to
II. 1. A。根据第2段第1句的描述可知,大禹的主要任务是治水,这也是一道常识题。
2. A。根据第2段最后一句In those days, people ate only with their hands可知,本题选A。
3. B。根据第4段的内容…可知,这些筷子是三千多年前的,所以本题选B。
4. D。根据第5段At first, chopsticks were just used as cooking tools可知,筷子最初只是用作厨具,所以选D。
III. 1. dates back to  2. Hurry up  3. pick up
II. 1. The Netherlands  2. five   3. three, walls   4. whipped cream  5. fifth    6. less, shape
III. 1. come into life   2. a layer of    3. is good for

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