2022高三英语阅读专题加强练之说明关心别人的话文（含答案详解）
（A）
章子怡作品浪淘风簸自天涯上一句是什么Ever since humanity began to farm our own food, we've faced the unpredictable rain that is both friend and enemy. It comes and goes without much warning, and a field of leafy greens one year can dry up and blow away the next. Food curity and fortunes depend on sufficient rain, and nowhere more so than in Africa, where 96% of farmland depends on rain instead of the irrigation common in more-developed places. It has conquences: South Africa's ongoing drought — the worst in three decades — will cost it at least a quarter of its corn harvest this year.
Biologist Jill Farrant of the University of Cap Town in South Africa says that nature has plenty of answers for people who want to grow crops in places with unpredictable rainfall. She is hard at work finding a way to take qualities from rare wild plants that are adapted to extreme dry weather and u them in food crops." The type of farming I am aiming for is literally so that people can survive as it's going to get drier and drier," Farrant says.
Extreme conditions produce extremely tough plants and a few fierce plants are highly adaptable to the everchanging conditions. Farrant calls one of them resurrection plants (复苏植物). During months without water under a harsh sun, they fade and contract until they look like a pile of dead green leaves but rainfall can revive them in the matter of hours. That is to say, when they detect and extend dry period, they produce sugars and certain stress-associated proteins and other materials in their tissues to enter a glass-like state that is “the most stable state that a plant can maintain”.
香干炒肉丝Last year, after Chine team published a draft genome (基因组)of rock violet, one of the best studied resurrection plants, Farrant and colleagues published a detailed study of another candidate. One or both of the models will help rearchers test their ideas-so far mostly done in the lab-on test plots.
1. Which can be responsible for the reduction in corn crop in South Africa?
A. Facing unpredictable rain.
B. Lacking advanced irrigation.
C. The food curity.
D. The ongoing drought.
2. Why does Jill Farrar conduct the relevant study?
A. To maintain the most stable state of tough plants.缺勤率
B. To grow crops in places with unpredictable rainfall.
C. To apply the special quality of wild plants to human farming.
D. To survive extreme dry weather and ever-changing conditions.
3. What does the underlined word “contract” in paragraph 3 refer to?
牡丹种植
A. shrink B. die C. withdraw D. rest
4. What can we learn from the last paragraph?
A. The rearch is still on trial.
长辈祝福语
B Chine team worked harder.
C. One of the candidates has been put into u.
D. The results contribute to resurrection plants.
（B）
Imagine wearing high-tech body armour that makes you super strong and tireless. Such technology, more specifically called an exoskeleton, sounds like the prerve of the Iron Man ries of superhero movies.
Yet the equipment is increasingly being worn in real life around the world. And one manufacturer---California’s SuitX---expects it to go mainstream. “There is no doubt in my mind that the devices will eventually be sold at hardware stores,” says SuitX’s founder Homayoon Kazerooni. In simple explanation, an exoskeleton is an external device that supports, covers and protects its ur, giving greater levels of strength and endurance. Sometimes also referred to as “wearable robots”, they can be battery-powered and comp
uter-operated, incorporating motors and hydraulics. Or they can be more simple, passive designs that u springs and dampeners.
“Integrating machines with humans opens up a new realm of opportunity,” says Adrian Spragg, an expert on the technology at management consultancy Accenture. “Many of the early applications have been focud on military and medical applications, but in the last veral years there’s been an explosion of u in a range of cas.” This expansion, which has come together with rapid advances in the technology, has en exoskeletons increasingly ud by manufacturing workers. Versions for consumers are also now being developed to help people more easily do everything from DIY, to walking, climbing stairs, and other daily activities.
One report says sales are now due to rocket as a result. Global exoskeleton revenues are expected to ri from $392m in 2020 to $6.8bn in 2030, according to a study by ABI Rearch. SuitX’s “suits” are now being tested by car manufacturers General Motors and Fiat. Prof Kazerooni, who is also the director of the University of California’s Berkeley Ro
botics and Human Engineering Laboratory, says that the primary benefit of the firm’s exoskeletons is to prevent muscle fatigue. “We’ve shown that muscle activity in the back, shoulder and knees drops by 50%,” he says. “If muscle activities drop, that means the risk of muscle injury is less. This means that factory or plant managers get more productivity, their insurance costs are lower, and there are less workdays lost to injury. There’s less cost and more productivity.”
>虚词的意义和用法
