Unit 6 When was it invented? 第四课时Section B (1a-1e) 分层作业（含答案）

Unit 6 When was it invented
第四课时Section B (1a-1e)
基础训练
I. 根据句意及汉语提示完成句子
1. The food goes s________. Throw it away, please.
2. The soup is too ________ (咸的) for us to drink.
3. My father was employed as a ________ (厨师) in a hotel.
4. The potato chips taste very c________. Would you like some
5. The restaurant offers good service to all its ______(顾客).
II. 用方框中所给单词或短语的适当形式填空
by mistake, invent, in the end, call, more than
1. I have a good friend ________(call) Mike.
2. The telephone ________ (invent) in 1876.
3. I’m afraid I opened your letter ________.
4. There are ________ 1,000 students in our school.
5. They reached the village ________.
Ⅲ. 单项选择
( )1. —A talk on American culture ________ in the school hall yesterday afternoon.
—It’s a pity. I missed it.
A. gave B. was given C. has given D. is given
( )2. —Why do you throw the bread
—It has a ________ taste. It has been put here for a long time.
A. salty B. sour C. sweet D. crispy
( )3. —Excuse me, sir. Are you sure the umbrella in your hand belongs to you
—Oh, sorry. I took it ________. Mine is over there under the chair.
A. at once B. on time C. by mistake D. in all
( )4. The soup isn’t ________. Please add some ________ to it.
A. salt enough; salty B. salty enough; salt
C. salt; salty enough D. enough salty; salt
( )5. We didn’t take any umbrellas. So we had to wait _______ the rain stopped.
A. after B. when C. until D. because
能力提升
Ⅰ. 补全对话
A: Look at that strange thing, Wei Hua! What’s that
B: It’s a key. 1. ________
A: Auto-bike What’s it then 2. ________
B: It’s a battery-operated machine and it was invented by my father.
A: 3. ________
B: It’s used for riding and flying.
A: Flying 4. ________
B: You can just ride it like an auto-bike and it will fly as it goes fast enough.
A: 5. ________ I think your father is so great.
B: I think so. He has invented many things and I’m proud of him.
A. How can it fly
B. Who invented it
C. What’s it used for
D. When was it invented
E. That sounds interesting.
F. Can you work out the problem
G. It’s used for opening and locking our auto-bike.
Ⅱ. 阅读下面短文，按要求完成各项任务
Sometimes the greatest things are invented by mistake. The greatest mistake of all time could be those delicious snacks in your comer drugstore.
One day, a woman was making chocolate cookies. When she ran out of chocolate powder (粉), she took out a chocolate bar and broke it into little pieces. She added the pieces to her cookie dough (面团) and baked (烘烤) it. She thought that the chocolate would (1) melt in the oven and make chocolate cookies. Far from melting, the pieces of chocolate stayed hard. When she took them out of the oven, she had chocolate chip cookies!
Another accidental invention was made by Frank Epperson, an eleven-year-old boy. In 1905, Frank sat outside on a winter evening, mixing up a big jug (罐) of powdered soda pop. Frank accidentally left the jug out during the night. When he went outside the next morning, he found the mixture in the jug frozen (冻僵) with the mixing stick stuck in the middle. Frank pulled out the frozen pop and tasted it. It was delicious! Frank started selling Epperson Icicles for 5 cents each. He later changed the name to (2) Popsicles. So, the next time you drop your hamburger into your ice cream or your cooked potatoes into your chicken soup, don’t worry! Some of the most delicious foods in the world were invented that way!
任务一：请根据短文，猜测画线单词(1) melt的意思。将答案的字母代号填写在横绒上
A. change into water
B. change into ice
_____________________
任务二：请根据短文内容，完成chocolate chip cookies的制作过程
1. Take out a chocolate bar and ___________.
2. Then add _________________________.
3. Finally bake it.
任务三：请列举文中与(2) Popsicles同义的另外两个表述。
_________________________________
任务四：请从文章中找出能够概括本文主旨大意的一个句子。
__________________________________
巩固拓展
你能讲一个某个物品被发明的历史故事吗？（英语）
参考答案
基础训练
I. 1. sour 2. salty 3. cook 4. crispy 5. customers
Ⅱ. 1. called 2. was invented 3. by mistake 4. more than 5. in the end
Ⅲ. 1-5 BBCBC
能力提升
Ⅰ. 1-5 GBCAE
Ⅱ. 任务一：A
任务二：1. break into little pieces 2. the pieces to the cookie dough
任务三：frozen pop; Epperson Icicles
任务四：Sometimes the greatest things are invented by mistake.
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