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1、uickeryoucanfixyourselfperformbetteronatest.Scientld,includingChina,BelgiumandSouthAfrica.Amongthepehemorepracticeyouget,thelessstressedyoullbe.So,itnethealthy,too!;.四、WorldSleepDay,on21stMarch,was.中考补全短文（六选五）复习专练一、What is the most stressful thing in school? It is probably exams. Exams can put us un
2、der a lot of pressure. But some students do well under pressure, while others feel terrible. 1. _It all comes down to dopamine (多巴胺). 2._ It has many important roles: influencing memory, attention and how we learn. Our brains work best when there is an even balance （平衡） of dopamine not too much or t
3、oo little.The brain controls dopamine in two ways. It either takes out dopamine quickly, or gradually. Exam success can be related to how fast dopamine goes back to an even balance.3._ If you become stressed, your brain will start to overload (超负荷) on dopamine. 4._ The quicker you are able to go bac
4、k to an even balance of dopamine, the quicker you can fix yourself perform better on a test.Scientists found that, during a test, people who slowly got back to an even balance of dopamine scored 8 percent lower. 5._But dont fear, there is some good news. The study also found that the more practice y
5、ou get, the less stressed youll be. So, it turns out that practice really does make perfect.A. What happens when we sit for an exam?B. It is like a cup overflowing (溢出) with water.C. So, why do some students perform better under stress?D. Thats the difference between a good mark and a bad mark.E. Do
6、pamine is a chemical in our brain that sends information to our body.F. Is there anything that can help change the speed of dopamine getting into our body?1. 2. 3. 4. 5.二、When we travel around the world, we may see many buildings of special shapes in the world. 1._For example, when you see a picture
7、 of sports stadium that reminds you of a birds nest, you probably know it is the Olympic Stadium in Beijing.Great buildings always have special shapes. 2._ For example, in Zhengzhou, people can visit Henan Art Center, built in the shape of gold eggs. The shape of it is special. “Five gold eggs” is c
8、ollected in a center.It means Zhengzhou lies in the centre of the Central Plain. 3._Visitors who are interested in guitars might want to visit the Guitar Museum in the USA. The building is shaped like a guitar. Inside, visitors can see all kinds of music instruments. 4._One of the newest funny- shap
9、ed museums is a pottery( 陶瓷) museum in Korea.;.hemorepracticeyouget,thelessstressedyoullbe.So,it打扰)you.Atnight,youshouldalsoavoidthingsthathascaffachday.Youalsoneedtomakeyourbedroomacool,dark,quieeine,suchaschocolate,coffee,teaandmanysoftdrinks,a.This museum, built in 2011, is shaped just like a tra
10、ditional Korean pot. Visitors can see examples of pots and tools used for making pots in the museum. 5._Maybe one day, one of them will become a pottery artist.A. Its one of the modernist buildings in China.B. They can also try to make their own pots there.C. Everyone can recognize them with their i
11、maginations.D. Maybe youre lucky enough to learn from famous players there.E. The shape of the building shows the objects people can see inside.F. They are created not only by their own wisdom, but also others help.1. 2. 3. 4. 5.三、One cool April 22 morning, people started the day as usual. Yet it wa
12、s not a normal day. Whats so special about April 22? The answer is because it is Earth Day. People all over the world celebrate this important day. The idea of having a special day to celebrate the Earth began in 1960s. Life was very different then. 1._ Most people had no idea how dirty our air and
13、water were.On April 22, 1970, twenty million Americans joined the first Earth Day activities. This showed that people really want to do something for the environment. Since then laws have been passed to protect the air, water, land, and animals. The vehicles （汽车） such as cars and buses you ride in m
14、ust pass tests to make sure they dont cause too much pollution. Thanks to it, cars today give out about half as many bad chemicals as they did in the past. 2._3._ Its a good thing because they have got a lot of help. The Cuyahoga River in Ohio was so polluted that rubbish and oil on the river even c
15、aught fire! Today, the river is cleaner. It no longer burns. 4._Now the celebration has spread to other countries. More than 175 countries take part each year.In 2007, people in China paid much attention to this big problem. People were throwing away one million plastic bags( 塑料袋) a day! People had Bye-Bye Throwaway Culture Week. They wanted everyone to see how polluted it was to throw away so many plastic bags. In 2008, China passed new laws against them.Every April 22, millions of peo
