肉炒莲藕2022北京高一（上）期末英语汇编
阅读理解D篇
一、阅读理解
（2022·北京西城·高一期末）If there is one place you don’t want to stick your finger, it’s the mouth of a Pacific lingcod. The fearsome fish have around 500 needlelike teeth sticking out of jaws (颌) that are strong enough to crush crustaceans (甲壳动物).毛针
How lingcod maintain the sharpness of their terrifying teeth has long been a puzzle. But a study, published in November in the Proceedings of the Royal Society B读后感五百字, claims that Pacific lingcod keep their teeth sharp and shiny by replacing about three percent of them every day. For a lingcod, that’s up to 20 teeth replaced daily.
In order to determine the frequency at which lingcod replace their teeth, Ms. Cohen, a coauthor of the new study, and her colleagues kept 20 lingcod at the University of Washington’s Friday Harbor Laboratories and tracked how many teeth they lost and regrew
over veral days. The fish were placed in a tank of awater mixed with a red dye (染料) that colored their teeth, then returned to their regular tank for 10 days. When the 10 days were up, the fish were placed in a tank containing a green dye and then examined. The teeth that were prent since the start of the experiment were both red and green, whereas the new teeth were only green.
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After collecting and examining a total of 10,000 teeth, the scientists were able to determine how quickly lingcod lost and regrew their teeth and which teeth were replaced most often.
Lingcod, like most fish, have two ts of jaws: oral jaws and pharyngeal jaws. Their oral jaws are ud to catch food while their pharyngeal jaws, which are positioned in their throats, are ud to chew their food and move it from their mouths to the stomach. Ms. Carr, the lead author, and colleagues found that teeth are replaced more frequently in the back of the mouth, where most of the chewing and crushing take place.
The way lingcod replace their teeth is likely crucial to their hunting strategy, says Kory Ev
ans, a fish ecologist at Rice University in Houston. “The duller a lingcod’s teeth are, the harder it is going to be for it to hold on to its target. So having the ability to shed teeth and replace them is pretty important.” Dr. Evans said, “In order to make it as a lingcod, you need sharp pointy teeth and all your teeth need to be on point.”
1．What does Paragraph 3 mainly talk about?
A．What role awater played. B．What conclusion was reached.
C．How the study was conducted. D．How teeth changed their colors.
2．According to the passage, lingcod’s teeth are replaced ___________.
A．every 10 days B．to better hunt for food
C．faster in the oral jaw D．with bigger and sharper ones
3．What does the underlined word “shed” in the last paragraph probably mean?
A．Repair. B．Sharpen. C．Lo. D．Examine.
4．What is the purpo of writing this passage?
A．To warn people of the danger of a fish.
B．To introduce the findings of a new study.
C．To stress the importance of replacing teeth.
D．To suggest new ways to conduct studies on fish.
（2022·北京平谷·高一期末）
A new University College London-led study finds that staring at a deep red light for three minutes a day can greatly improve declining (下降) eyesight.
Scientists believe the discovery, published in the Journal of Gerontology, could signal the
dawn of new affordable home-bad eye therapies (治疗) helping millions of people globally with naturally declining vision.
Doctors say a three-minute daily does of the special red light for two weeks could help improve age-related vision problems. However, they say not any red light will help improve eyesight. The lead author, Professor Glen Jeffery said, "I strongly suggest that people should not just go and buy a red light online. They have to produce the right wavelength. We are looking for a commercial partner to do this and to price them at $20 to $25."
The study was carried out by a team from University College London. Rearchers conducted tests on 24 men and women aged between 28 and 72. They said some cells that could help us process light had become wor in the older people. Doctors say the red light improved the ability of the people to detect different colors, particularly blue. The vision of the older people improved by as much as 22 percent, Jeffrey said, "Populations are ageing rapidly and this is going to be a major issue in the future. We nee
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d to get ready for this." He added, "If you can't e clearly, you can't read or watch TV. You also tend to fall down and break bones. Our lights are a step in this direction."
新娘的父亲5．What is the function of Paragraph1?
A．To lead to the main topic. B．To discuss the study.
C．To introduce a university. D．To give some advice.
6．What can we infer from Paragraph 3?
A．Red light only lasts three minutes.
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B．The red light with the right wavelength can be helpful.
C．Everyone needs to buy a red light online.
D．Doctors need partners to ll red lights.
7．What does the last paragraph mainly talk about?
A．The problem of populations. B．The process and results of the study.
C．The vision of the old people. D．The usage of different colors.
8．Where does the passage most probably come from?
A．A medical magazine. B．A story book.
C．A book review. D．A history book.
（2022·北京房山·高一期末）SHOULD WE FIGHT NEW TECHNOLOGY?
This morning, I saw the shocking headline: “Pasnger Dies When Car Crashes in Driverless Mode”. In the article, various people said that the public should oppo the idea of developing driverless cars. They said that some advances in technology were unnecessary and could even be dangerous. Hence, we should cea accepting technology just becau it is new. The newspaper reported that the car company had already apologid for the accident, but the families of the decead said it was not enou
gh. Nevertheless, the company still claimed that most people would be travelling in driverless cars one day soon.
