题型:阅读选择 题类:模拟题 难易度:困难
2019初中英语中考复习专题训练卷(七)阅读理解(三)说明议论类
Albert Einstein is right once again! He thought of the idea about gravitational waves years ago with his Theory of Relativity, but scientists are finally discovering that it really exists now. But what are gravitational waves, and why are they important?
Well, gravitational waves are made by black holes and can change time in space. Black holes aren't holes but are lots of matter put together into a very small area. They are created when a star, much like our sun, explodes and leaves behind this dense* material. It doesn't shine like a star any more, and it becomes black.
The black holes that made these waves are special. About 1.3 billion years ago, there were two black holes that kept moving closer and closer together. Finally, they hit each other and formed one big black hole. The energy is given off and created the ripples* in space. These ripples are gravitational waves. For example, imagine you throw a stone into a pool. It creates ripples that change the shape of the water. Well, that's kind of what the influence of one black hole hitting the other has in space.
Gravitational waves are hard to explore. But thanks to the efforts of scientists, the ripples were discovered on Feb. 11th, which is the first time in human history. Einstein was excellent to know this 100 years ago before we have the technology. It can give us a new view of the universe we live in. The discovery of gravitational waves, unlike stars, galaxies and other bright objects, black holes don't produce light, so we can't see them by tools. Gravitational waves allow scientists to look at the universe not only with light, but also with gravity. "Everything else in astronomy like the eye," A scientist told The New York Times. "Finally, astronomy grew ears. We had never ears before."
Now, we will be able to find black holes and things that are much further away from Earth, which means much more space exploration in the future. And who knows, this discovery could even lead to time travel!
You'll find thousands of methods on how to live a better,healthier life online. Some are great!Others,not so much. But there is a method for getting better sleep. It has been getting some attention online. It's called the "10﹣3﹣2﹣1﹣0 Method"
The "10" means that we should have stopped drinking coffee 10 hours before bed,because coffee can keep us awake. | The "3" means not eating big meals or drinking alcohol (酒) within three hours of going to bed. That's to avoid problems caused by eating too much at night—although some people say that eating a little of food later in the evening can actually be good for our bodies. |
For the "2",it means about two hours before bed we should write down our jobs for the next day and rest our brains. | Then,one hour before bed,we should avoid using phones or computers(周期). That's the "1". |
So what's the "0"?This is for the number of times you'll need to cancel your alarm (闹钟) in the morning,because you have a great sleep!That's to say |
However,this method is just an idea,and it may not work for everyone. So you might have to try another of those methods if this one doesn't work for you!
Ways to increase confidence
Self-confidence is important for everyone's success. If you don't have confidence, it becomes very hard to move forward and make progress in life. With this in mind, here are some tips to increase confidence.
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One thing that's easy to do is to change your appearance. It's amazing how good a new dress, a haircut, or having your teeth whitened or your nails done can make you feel. Even a humble shower and a shave can give your self-image a lift. Looking confident will help you feel more confident.
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Leave behind the ones who put you down. If that's not possible, see them less. A survey of 48 studies by the American Psychological Association in 2019 found positive(积极的) social relationships improved self-confidence but poor-quality relationships had a bad effect. Actively meet them, as having fun with great people will make you feel better about yourself.
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Getting out of your comfort zone will give you a sense of achievement and help yourself-belief. When you try new things and accept new challenges, you will be surprised to find there will be dreams. Would you like to paint better? Look around for an art class. You'll will boost your self-confidence and get to meet like-minded people at the same time.
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Research has shown that getting out into a green space can increase self-confidence. Meanwhile, Canadian research found that joining some groups benefited self-confidence more than having lots of friends. So why not kill two birds with one stone and sign up for a walking group, a local conservation group or a gardening club?
A. Try something new B. Give yourself a new look C. Make plans with positive people D. Join lots of outdoor groups E. Cheer yourself up |
Please give one more way of increasing confidence and list at least two reasons. {#blank#}5{#/blank#}
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