学练快车道快乐假期寒假作业系列答案
新思维寒假作业系列答案科目：高中英语 来源：黄冈题库练考新课堂 高二英语(上) 题型：054
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It was a freezing day, when I picked up a wallet in the street. There was nothing 1 but a letter that was 2 Hellen. On the torn 3 I found the return address, so I called information. The operator asked me to 4 on, and she came back on the 5 soon, she told me that Hellen’s family had 6 their house years ago. Hellen had to 7 her mother in a nursing home.
I called and found out that Hellen’s mother had 8 . The woman who answered 9 that Hellen herself was 10 living here.
The director waited for me at the 11 of the nursing home. I went up to the third floor. Hellen was an old woman with a warm smile and 12 eyes. I told her about finding the wallet and showed her the letter. She took a deep 13 “Young man,”she said,“this was the 14 letter I had written to Mike 60 years ago. I loved him very much. I guess no one ever 15 up to him. I still think of him…”
I thanked Hellen and came back to the director. His secretary looked at the wallet 16 and said, “Hey, that’s Mr. Goldstein’s. He’s always losing it. He’s 17 here en the 8th floor. That’s his wallet, for 18 .”
We hurried to him and asked 19 he had lost his wallet. Mike felt his back pocket and then said, “Goodness, it’s missing.”
When I returned him the wallet and told him where Hellen was, he grew 20 .“When the letter came,” He said,“my life ended. I never married.”
We took him to Hellen’s room. They stood, looked at each other for a minute and embraced (拥抱).
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科目：高中英语 来源： 题型：
—I got my first “Hey,that guy knows English!” job after only about a month in China!
—_______
A. Repeat and say it slowly.?
B. Sorry, I didn’t catch that.?
C. Could you speak better, please?
D. Excuse me, I’m not hearing you.?
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科目：高中英语 来源： 题型：阅读理解
What does fizz (气泡) taste like? In Bubbly (多泡的)drinks such as sodas, tiny bubbles give the drink a lift--- and have a distinct taste, In a new study on mice, scientists have connected that fizzy-taste feeling to the ability to taste sourness, such as that of oranges or vinegar.
Scientists first thought the taste of bubbles came from the bubbles bursting on the tongue, but now ate starting to think differently. Charles Zuker, of Columbia University, and his team studied the nervous system of mice to understand how the tongue tastes carbon dioxide, which is the gas that makes up the bubbles.
Animals, including human beings, are able to detect different tastes by using taste buds(味蕾) which pick up tastes in the mouth, and then send them to the brain. In the experiment, different groups of mice were genetically engineered to be missing one of the senses involved in taste. “Genetically engineered” means the researchers were able to turn off the switches for certain senses by changing the genes responsible for taste. The mice in one group could not taste sweet; another, sour; the third, bitter, and the fourth, salt. When the scientists gave carbon dioxide to the mice, the nervous systems of all the mice responded to the gas, except those of the mice that could not taste sour.
This shows that the taste of the bubbles must be sour, and that by turning off the ability of the mice to taste sour, the scientists also turned off their ability to taste carbon dioxide. When they studied the cells that detect sourness, the researchers found a protein attached to the cells that is important to the process of tasting carbon dioxide. When carbon dioxide comes into contact with this protein, the protein knocks off particles called protons. These protons(质子), in turn, travel to the brain, which says ,” Hey! That’s a taste!”
It may seem like a lot of work to get from a can of soda to a taste, but the science of the senses is anything but simple, “ Taste is a challenging system to study,” one researcher says.
What is the most important function of the bubbles?
A. To look interesting . B. To make drinks taste good.
C. To make drinks funny. D. To produce a lot of fizz.
From the experiment the researchers learned that______.
A. sourness has nothing to do with the taste of bubbles.
B. there is a connection between sourness and bubbles.
C. the taste of bubbles is better if it’s less sour.
D. most mice cannot taste carbon dioxide.
It can be inferred from the passage that ________.
A. the taste of bubbles is produced by the bubbles bursting on the tongue.
B. the nervous systems of mice show how the tongue tastes carbon dioxide.
C. taste seems simple but is very complex to research.
D. nerve cells sending signals to the brain is the first step in tasting something.
Which of the following would be the best title for the passage?
A. Nervous Systems Understand How the Tongue Tastes.
B. The Process of Taste
C. The taste of Bubbles.
D. Different Animals Detect Different Tastes.
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科目：高中英语 来源：2010年江西省高一下学期期末考试英语卷 题型：阅读理解
What does fizz (气泡) taste like? In Bubbly (多泡的)drinks such as sodas, tiny bubbles give the drink a lift--- and have a distinct taste, In a new study on mice, scientists have connected that fizzy-taste feeling to the ability to taste sourness, such as that of oranges or vinegar.
Scientists first thought the taste of bubbles came from the bubbles bursting on the tongue, but now ate starting to think differently. Charles Zuker, of Columbia University, and his team studied the nervous system of mice to understand how the tongue tastes carbon dioxide, which is the gas that makes up the bubbles.
Animals, including human beings, are able to detect different tastes by using taste buds(味蕾) which pick up tastes in the mouth, and then send them to the brain. In the experiment, different groups of mice were genetically engineered to be missing one of the senses involved in taste. “Genetically engineered” means the researchers were able to turn off the switches for certain senses by changing the genes responsible for taste. The mice in one group could not taste sweet; another, sour; the third, bitter, and the fourth, salt. When the scientists gave carbon dioxide to the mice, the nervous systems of all the mice responded to the gas, except those of the mice that could not taste sour.
This shows that the taste of the bubbles must be sour, and that by turning off the ability of the mice to taste sour, the scientists also turned off their ability to taste carbon dioxide. When they studied the cells that detect sourness, the researchers found a protein attached to the cells that is important to the process of tasting carbon dioxide. When carbon dioxide comes into contact with this protein, the protein knocks off particles called protons. These protons(质子), in turn, travel to the brain, which says ,” Hey! That’s a taste!”
It may seem like a lot of work to get from a can of soda to a taste, but the science of the senses is anything but simple, “ Taste is a challenging system to study,” one researcher says.
1. What is the most important function of the bubbles?
A. To look interesting . B. To make drinks taste good.
C. To make drinks funny. D. To produce a lot of fizz.
2.From the experiment the researchers learned that______.
A. sourness has nothing to do with the taste of bubbles.
B. there is a connection between sourness and bubbles.
C. the taste of bubbles is better if it’s less sour.
D. most mice cannot taste carbon dioxide.
3. It can be inferred from the passage that ________.
A. the taste of bubbles is produced by the bubbles bursting on the tongue.
B. the nervous systems of mice show how the tongue tastes carbon dioxide.
C. taste seems simple but is very complex to research.
D. nerve cells sending signals to the brain is the first step in tasting something.
4. Which of the following would be the best title for the passage?
A. Nervous Systems Understand How the Tongue Tastes.
B. The Process of Taste
C. The taste of Bubbles.
D. Different Animals Detect Different Tastes.
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