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题型:阅读理解-阅读单选 难度:0.65 引用次数:94 题号:11848437

Ramen noodles have been a go-to food for students for decades. After all, they only take eight minutes to cook in a dorm hotpot and are easy on the budget. Holly Grounds, a recent project design graduate who used to eat a lot of ramen noodles when she studied, started thinking that the packaging of a product shouldn't take decades or more to break down. That's why she decided to make eatable wrappers (包装材料) for noodles, avoiding the need for plastic.

Grounds wanted to produce a product that the user could watch actually melt in the pot. “While other bio-based alternatives to plastic claim to be able to break down, in a consumer’s eyes, it's not always that simple,”she said. “Many of the bio-based films only break down at 50 degrees Celsius, so they often end up in the wrong place without the consumer really knowing that they caused damage to the planet.”

Now, instead of plastic packs of seasonings, the dried spices and flavorings (调味品)are part of a flavorless bioplastic film that wraps the noodles and keeps them fresh. The film melts in less than a minute when it comes into boiling water, and the liquid becomes the sauce (调味汁)for the noodles.

“The sauce is heated until the mixture is thick enough. At this point, I add the spices and flavorings before pouring it into a mold (模子)to set for 24 hours,” Grounds said. These noodle parcels are then packaged in a wax-coated paper.

With plastics taking hundreds of years to break down, eatable packaging and single-use articles are seen as the way to go. Grounds sees opportunities to use her eatable packaging for other ready meals and she wants to contribute to the global fight against single-use plastics.

1. Why does Grounds want to replace plastic wrappers with eatable ones?
A.The plastic ones are not eco-friendly.
B.The plastic ones do harm to our health.
C.The eatable ones appeal to more consumers.
D.The eatable ones save more cooking time.
2. What makes the bio-based films fail to break down in practice?
A.The immature technology.
B.The high cost of process.
C.Their very special material composition.
D.Their specific conditions of breaking down.
3. What do we know about the eatable wrapper according to Paragraph 3?
A.It ensures longer preservation time.
B.It requires a special cooking method.
C.It ends up as the sauce for food.
D.It improves the nutrition of noodles.
4. The fourth paragraph mainly talks about the                      the eatable noodle wrappers.
A.the method of usingB.the process of making
C.the packaging design forD.the storage requirements for

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阅读理解-阅读单选(约380词) | 适中 (0.65)
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文章大意:本文是篇说明文。文章主要介绍了一种新型的头戴式耳机,它可以用称为经颅直流电刺激(tDCS)的方法向大脑输送低电流,从而缓解抑郁症状。

【推荐1】Using a headset at home to deliver a low electrical current to the brain can relieve symptoms of depression. The approach, called transcranial direct current stimulation (tDCS), is effective when used several times a week for half an hour at a time.

Previous trials have shown that the treatment works under medical supervision in a clinic or lab. Now, a randomized trial has demonstrated that a tDCS headset can also reduce depression symptoms when worn at home. Depression is usually treated with talking therapies (治疗) or by taking antidepressant medicines, but these don’t help everyone.

Several forms of electrical brain stimulation may have the potential to treat depression. With tDCS, sponge electrodes (海绵电极) are placed on the left and right sides of the forehead, causing a mild current to flow from the left to the right. This makes brain cells on the left side more likely to fire, with some studies suggesting that activity in this region, known as the left is low in people with depression.

Repeated sessions of stimulation may lead to longer-term changes in the brain cells, increasing their activity levels, says team member Cynthia Fu at the University of East London. Affecting activity in this region probably changes activity in multiple areas, she says.

To see if people can benefit from using such a device at home, Fu and her colleagues tested a tDCS headset made by Swedish firm Flow Neuroscience. The team randomly assigned 174 people with moderate or severe depression to receive either a full session of stimulation from the Flow headset or stimulation from the same device that lasted just a few seconds, so people felt their skin tingling (刺痛), at the start and end of each session.

While the depression symptoms of both groups improved on a 52-point scale, those who got the real treatment showed the most benefit. Those who got the real stimulation were more likely to report skin redness and anger, however, and two people experienced burns from using sponges that had dried out.

The results may get such headsets taken more seriously by doctors, says Nick Davis at Manchester Metropolitan University, UK. “This feels really positive.” he says.

1. What’s the function of the first paragraph?
A.To introduce a new headset.B.To lead in the topic of the text.
C.To analyze an important theory.D.To present the result of a study.
2. How does a tDCS headset work?
A.By increasing the activity of brain cells.
B.By stimulating the right area of the brain.
C.By sending a low electrical current to the brain.
D.By changing activity in multiple brain regions.
3. What is one potential side effect of using a tDCS headset at home?
A.Sleep disorder.B.Burns from using dried-out sponges.
C.Addition to antidepressant medicine.D.Improvement in mood and energy levels.
4. What’s the Nick’s attitude towards the tDCS approach?
A.Optimistic.B.Skeptical.C.Critical.D.Hopeless.
7日内更新 | 24次组卷
阅读理解-阅读单选(约380词) | 适中 (0.65)
真题
文章大意:这是一篇说明文。本文主要介绍了一款智能运动鞋,通过利用孩子们每天走步数来决定看电视的时间,起到控制体重的作用。
【推荐2】       Sports shoes that work out whether their owner has done enough exercise to warrant time in front of the television have been devised in the UK.
       The shoes- named Square Eyes- contain an electronic pressure sensor and a tiny computer chip to record how many steps the wearer has taken in a day. A wireless transmitter passes the information to a receiver connected to a television, and this decides how much evening viewing time the wearer deserves, based on the day’s efforts.
       The design was inspired by a desire to fight against the rapidly ballooning waistlines among British teenagers, says Gillian Swan, who developed Square Eyes as a final year design project at Brunel University in London, UK. “We looked at current issues and childhood overweight really stood out,” she says. “And I wanted to tackle that with my design.”
       Once a child has used up their daily allowance gained through exercise, the television automatically switches off. And further time in front of the TV can only be earned through more steps.
       Swan calculated how exercise should translate to television time using the recommended daily amounts of both. Health experts suggest that a child take 12,000 steps each day and watch no more than two hours of television. So, every 100 steps recorded by the Square Eyes shoes equals precisely one minute of TV time.
       Existing pedometers (计步器) normally clip onto a belt or slip into a pocket and keep count of steps by measuring sudden movement. Swan says these can be easily tricked into recording steps through shaking. But her shoe has been built to be harder for lazy teenagers to cheat. “It is possible, but it would be a lot of effort,” she says. “That was one of my main design considerations.”
1. According to Swan, the purpose of her design project is to _____.
A.keep a record of the steps of the wearer.
B.deal with overweight among teenagers.
C.enable children to resist the temptation of TV.
D.prevent children from being tricked by TV programs.
2. Which of the following is true of Square Eyes shoes?
A.They regulate a child’s evening TV viewing time.
B.They determine a child’s daily pocket money.
C.They have raised the hot issue of overweight.
D.They contain information of the receiver.
3. What is stressed by health experts in their suggestion?
A.The exact number of steps to be taken.
B.The precise number of hours spent on TV.
C.The proper amount of daily exercise and TV time.
D.The way of changing steps into TV watching time.
4. Compared with other similar products, the new design ___.
A.make it difficult for lazy teenagers to cheat.
B.counts the wearer’s steps through shaking.
C.records the sudden movement of the wearer.
D.sends teenagers’ health data to the receiver.
5. Which of the following would be the best title for the text?
A.Smart Shoes Decide on Television Time
B.Smart Shoes Guarantee More Exercise
C.Smart Shoes Measure Time of Exercise
D.Smart Shoes Stop Childhood Overweight
2019-01-30更新 | 881次组卷
阅读理解-阅读单选(约330词) | 适中 (0.65)
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【推荐3】The idea of having car, a plane, drone(无人驾驶飞机) parked outside your home may not be as unlikely as it seems.

We are going to have personal air vehicles that are both cars and planes. At least that's Missy Cumming's vision of the future. It's basically the intersection of a drone with a robotic car, so your plane is also your car, but the quick development of technology is that you are actually driving neither.

Drones have a negative image in the media, says Cummings, because they are basically seen as spy cameras. But most people don't realize that when they are on a plane they are effectively travelling on a drone. The fly-by-wire technology that exists on all Airbuses and many crafts of Boeing is the exactly same technology that exists on drones.

The reason why drones are the answer to the future is that we are terrible drivers. Humans have a half-second lag(时滞) in almost any quick response that they need to have. Even a half- second delay can mean the difference between life and death, and computers and automated(自动化的) systems don't have that.

So, our transportation network of the future, both on the ground and in the air,will actually be safer when we turn it over to computers.

There really aren't any technological difficulties to this idea. The biggest difficulties we have in terms of giving up the car are psychological and cultural, but no new technology needs to be developed to have your own personal flying car. What we have to do is to improve production and reduce manufacturing costs.

People should be excited about this: it promises much in terms of safer travel, and people in parts of the world where the road and air networks are poor will be able to get the goods and services.

1. What is the meaning of the underlined word”intersection” in paragraph 2?
A.交叉B.部分C.交流D.结构
2. What does the underlined word "that" in Paragraph 4 refer to?
A.The truth.B.The difference.
C.The quick response.D.A half-second delay.
3. What will most probably prevent the popularity of flying cars in the future?
A.Their being expensive.B.Lacking advanced technology.
C.People's not accepting the idea.D.People's failing to improve production.
4. What's the best title of the passage?
A.Future VehiclesB.Future Flying Cars
C.An Answer to the FutureD.Safer Travel
2020-12-18更新 | 46次组卷
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