题型：阅读选择 题类：模拟题 难易度：普通
河北省唐山市路北区2020年九年级英语第二次模拟检测试卷
We often find that weekends and holidays feel so short while classes and work feel so long. Actually, though, we know that this is not true. But we still wonder where that strange feeling comes from.
In fact, this is one of the ways that we're tricked by time, according to the website. All that S interesting. The website lists several wrong impressions (印象) we often have about time. Let's have a look.
First of all, emotions affect (影响) our time-keeping abilities. Negative emotions (消极情绪). especially anxiety and boredom, make time seem longer because they make us concentrate (集中) more on the passage of time. However, when we are enjoying ourselves, we pay more attention to what we are doing and are likely to lose track of (失去对……的意识) time.
Here is another example. In 2007, a group of scientists carried out a test. In the test, people fell 50 meters into a safety net and were then asked about their experience. Although the experience took shorter than 3 seconds, the people thought it was much longer than it actually was.
This is because of the way our bodies reply to danger, according to the scientists. Our bodies produce a chemical called adrenaline (肾上腺素) when we are faced with danger. It allows us to concentrate better so that we can stay alive. As a result, we are able to remember far more details (细节) over a short period of time, which makes it seem like time is going more slowly.
Another situation when we make mistakes about time is when we take afternoon naps (午觉). Have you ever had trouble telling what time it is after a long nap? That's because the best amount of time for a nap is 20 minutes. After 20 minutes, you enter a new stage of sleep called slow-wave sleep. If you wake up mid-way in this stage, it will take a while before you can correctly perceive (感知) time again.
Yes, time can be mysterious (神秘的) and there is no way to control it. So, perhaps the best thing to do is to make good use of every minute.
Man has invented four kinds of satellites(人造卫星).
The first kind of satellites studies the geography of the earth. They are used to make maps. They also help countries to see where they may find oil or gold. |
The second kind of satellites is used to guide ships and planes. A ship or a plane can send a message to the satellite, and the satellite can find out where the ship or the plane is. |
The third kind studies the weather. These satellites watch clouds and strong winds moving across the earth. They warn countries to make preparations when very bad weather is coming. |
The last kind is used for communications(通信). Telephone calls between countries can be sent. by these satellites. Some can carry hundreds of calls at the same time. The call is sent to the satellite, then the satellite' sends it to a station in the country and this country is being phoned. These satellites also carry pictures; they can receive and send about eight programmes at a time. |
From small ants to big whales, almost all animals need to sleep. Some sleep a little. Some sleep a lot. And some have special ways to get their sleep.
| Some seabirds spend most of their lives over the ocean. And they can sleep while they are flying. They can fly for many hours without moving their wings. |
| A flamingo can sleep while standing on one leg. The standing leg always stays straight. The other leg stays close to its body. Its head rests on its back. |
| Horses often sleep standing up. If a horse lies down, it needs a long time to get up. A horse can run from danger more quickly if it is already standing. And horses only need about three hours of sleep a day! |
| Giraffes win the prize(奖) for sleeping the least. They sleep about 30 minutes a day, and 5 minutes at a time. They lie down when they sleep. They rest their heads on their bodies or on the ground. What a strange way of sleeping! |
| A dolphin sleeps with just half its head at a time. The other half must stay awake(醒着的) to take in air and to watch for danger. Dolphin mothers and babies can go without sleep for as long as two months to stay safe. |
Paper Cutting Club | |
Time | On 1 afternoons |
Teacher | Maria, from2 |
Activities | ● Last week: made a paper cutting of a 3 ● This week: 4 |
Why does David give the talk? 5 | |
试题篮
Seabirds
Flamingos
Horses
Giraffes
Dolphins
