Look at the center circles of Diagram（图）A and Diagram B. Which of the centre circles looks larger?
Take a first look and you probably think that the centre circle in Diagram A is smaller than that in Diagram B. In fact, they are exactly the same size.
Then look at the picture on the left. What do you see? A vase? Or two faces？Does the picture change quickly from one to the other again and again? Maybe or maybe not, but you can never see them at the same time.
“What’s happening? Is something wrong with my eyes?” You may wonder at what you see. Don’t worry. Here is how it goes：
When we look at things, our eyes send messages to our brains and then our brains interpret（解读）the information. However, sometimes our brains interpret the received information in a wrong way. It seems that our eyes are playing a joke on us. This often happens and we call it “Visual illusion（视觉错误）.
Movie makers often make use of illusions. They make the objects around actors much smaller or bigger than usual. This makes us believe that the actors are much larger or smaller than they usually are. The movies Jurassic Park and Honey I shrunk the kids just make use of illusions.
Why does the centre circle in Diagram A look smaller than that in Diagram B?
| A．something is wrong with our eyes |
| B．the two circles are not the same size |
| C．our brains interpret the information in a wrong way |
| D．the two pictures change quickly from one to the other |
What’s the right order according to the passage?
a. We look at things with our eyes.
b. Our brains interpret the messages.
c. Our brains tell us what we have seen.
d. Our eyes send messages to our brains.
| A．a-c-d-b | B．c-a-b-d | C．a-d-b-c | D．b-c-a-d |
What do movie makers make use of visual illusions for ?
| A．To help the actors look better. |
| B．To make the actors much braver. |
| C．To help the actors become stronger. |
| D．To make the actors seem different in size. |
In the picture on the right, it seems that Line AB is shorter than Line CD, but in fact Line AB is as long as Line CD. Which paragraph can explain what has happened to our eyes?
A. The second one. B. The third one.
C. The fifth one. D. The sixth one.
Which magazine is the text probably taken from?
| A．Art world | B．Amazing Science |
| C．Health and Medicine | D．Daily news |
How do people find their ways？ At first， people did it by looking at the sun， the moon and stars， Later， we started to use the compass（指南针）．Today， there are navigation satellite systems．
A navigation satellite system uses groups of satellites， They send information to a receiver， such as your smart phone． Then they can find where you are．
The earliest navigation system is the Global （全球的） Positioning System（GPS） of the United States， The US has put 24 satellites into space to make sure GPS can locate a person correctly and globally． Russia's GLONASS and European Union's Galileo can also work globally．
The BeiDou Navigation Satellite System （BDS）is China's homegrown navigation system． It was set up in 2000． With it， China became the third country to build a navigation system after the US and Russia．
BeiDou can find you wherever you are． It helps you go faster by finding shortcuts and using correct directions． When you are in trouble and call the police， they will know exactly where you are if you have a smart phone that uses BeiDou．
Today， there are more than 20 BeiDou satellites above our heads． And the system is able to offer open services to the Asia﹣ Pacific area．
China plans to send more BeiDou 3 satellites into space． BeiDou﹣3's position accuracy（精确度） is less than five meters， By 2020， the BeiDou system will have 35 satellites and begin serving Globally．
（1）How did people find their ways at first according to this passage？
A． By looking at the sun， the moon and stars．
B． By using the navigation satellite systems．
C． By looking at the compass．
（2）How many navigation satellite systems are mentioned in the passage？
A． Two．
B． Three．
C． Four．
（3）What does the underlined word"locate "in the third paragraph mean？
A．位于
B．设置
C．定位
（4）What do you know about the BeiDou system？
A．It was set up before GPS．
B．It will begin serving globally by 2020．
C． There are less than 20 BeiDou satellites today．
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In the Warring States Period， the State of Qin had a fight with the State of Zhao， Zhao needed some talented people to ask for help from Chu．Then Mao Sui﹣the man who believed he was the right person for this task came and recommended （推荐）himself．And he made the king of Chu send the army to help successfully． Zhao was safe． From then on， Mao Sui became a well﹣known hero of the state． |
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One day， Shang Yang put a thin wooden stick near the south gate of the capital of Qin．He promised to pay 10 gold pieces to anyone who could move it to the north gate． It was such a simple job that all the people thought Shang was joking． Then he added 40moregold pieces． A man moved it and he really got 50 gold pieces．After that， the people of Qin believed Shang was a man of his word． So they all followed Shang's new laws later． |
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Wang Xizhi was one of the most famous calligraphers（书法家）during the Eastern Jin Dynasty of China． When he was very young， he practiced his art every day and never stopped． One day， Wang Xizhi wrote in wood for an engraver（雕刻师）to cut． Then the engraver found the ink had penetrated （渗透）one centimeter into the wood．Now"Ru Mu San Fen" is often used to describe sharp ideas or useful views． |
（1）Where did Mao Sui come from according to this passage？
A． The State of Qin．
B． The State of Zhao．
C． The State of Chu．
（2）Why did the people of Qin follow Shang Yangs new laws？
A． They believed in Shang Yang．
B． They were afraid of Shang Yang．
C．Shang Yang gave them gold pieces．
（3）What is"Ru Mu San Fen"often used to describe now？
A． A man of his word．
B． Sharp ideas or useful views．
C．A well﹣known hero of the state．
Scrub， the pet cat of Jennifer's， was found! It got lost five years ago． Jennifer looked for it everywhere but failed each time． She thought Scrub would never come back． But one day she got a call from an animal shelter（庇护所） and was told they had found Scrub!
How did they know Scrub belonged to Jennifer？ How did they know Jennifer's phone number？ All the information was available because of the microchip， a very small computer chip（薄片）． It was placed under Scrub's skin many years earlier．
The microchip is usually placed under the skin of an animal's shoulder to keep its ID number． Once the chip is in place， the pet does not feel it anymore． When lost pets are brought to animal shelters， people there use a special tool to look for the microchip and read the ID number on it， then they'll call the microchip company to match the number to the information of the pet's owner． This is how the shelter was able to tell Jennifer that they had found Scrub．
Microchips have helped thousands of owners get their lost pets back． In New York， a dog named Roxy was missing for months． Then a woman found her on a busy street in New Jersey． No one knows how the dog got to a different state． However， thanks to her microchip， Roxy was soon returned to her grateful owner．
In 2008， a couple got their cat George back after he had disappeared 13 years earlier! When George got lost， the couple tried everything to find him． They visited animal shelters every day for six months， made posters and even offered a ＄500 reward（酬金）． As years went by， they thought George would never be back till they got the call from an animal shelter． Without the microchip， the cat would never be able to come home again．
Microchips can not only work for a pet's whole life but help lost pets no matter how far they've been away from home． This is why microchips may be just the thing to help bring missing pets back home．
（1）How did Jennifer find her pet cat？
A． By visiting animal shelters．
B． By offering a ＄500 reward．
C． With the help of the microchip．
D． With the help of a woman in New Jersey．
（2）Which statement about microchips is NOT true according to the passage？
A． They are very small computer chips．
B． They are under an animal's skin of its shoulder．
C． They can help the owners to find the long﹣lost pets．
D． They can only work for a lost pet that's far away from home．
（3）The right order of how animal shelters help lost pets return home is ．
①Get the ID number of the lost pet．
②Call the owner to bring the lost pet home．
③Look for the microchip of the lost pet．
④Call the microchip company to match the number to the information of its owner．
A． ③①②④
B． ③④①②
C．①③④②
D． ③①④②
（4）According to the passage， we can know that ．
A． the couple thought the microchip wasn't helpful at all
B． Scrub didn't feel uncomfortable with the microchip in its body
C． it took a long time to match Roxy's ID number to her owner's information
D． Jennifer herself found her cat according to the ID number on its microchip
（5）What is the main idea of the passage？
A． The reasons why pets got lost．
B． Different ways to find the lost pets．
C． The ways how people care for the lost pets．
D． The introduction of how microchips help the lost pets return home．
The cold wind blew strongly outside． Amaya was warm in her house， thinking about an article she'd read at school． The article was about kids who helped out their communities， and she thought it would be really cool to help her own town， Harvard．
The only problem was that she wasn't sure how to help． In the article， the kids had grown food for people who needed food， but it was winter． She couldn't start a garden． Amaya was deep in thought when her mom said it was time to go shopping．
As they drove along the road， Amaya saw a family walking on the sidewalk（ 人 行 道 ），wearing only light jackets． How cold they must be! That gave her an idea! She could collect winter coats， hats and gloves for people who needed them．
She shared her idea with her mom， who thought it was great． But how would they spread the idea to get plenty of winter clothing？ Amaya decided to talk to her teacher， because then she could share her idea with her classmates at least．
Ms． Monroe agreed when Amaya talked about her idea． They decided to call the project Hats in Harvard． Then they wrote a letter explaining the project． Ms． Monroe even said she could help Amaya talk to the headmaster about it， so they could get the whole school to join in it． They met with the headmaster during lunch time． He was excited about the idea， and said he would make sure copies（复印件） of the letter went home with all the students．
They collected enough winter clothing in only one week． Then they left the clothes around two parks， so families who needed clothes could get them there． Three days later， Amaya and her mom went shopping again． She saw the same family that had given her the idea for Hats in Harvard． This time， though， the family looked nice and warm in some new coats， hats and gloves． Amaya felt warm in her heart， and was very glad she could help others．
（1）Amaya wanted to after she had read an article at school．
A． grow food
B． collect winter clothing
C． help her own town
D． go shopping with her mom
（2）Whom did Amaya share her idea with first？
A． Her teacher．
B． Her mother．
C． Her classmates．
D． Her headmaster．
（3）The underlined word "it" in Paragraph 5 refers to（指的是） ．
A． the letter
B． the project
C． the winter clothing
D． Ms． Monroe's idea
（4）Which of the following is TRUE according to the passage？
A． It took three days to collect enough clothes．
B． Ms． Monroe only helped Amaya write a letter．
C． Families who needed clothes got clothes from Amaya．
D． The headmaster helped spread the project Hats in Harvard．
（5）After reading the passage， we can know that ．
A． Amaya herself could complete the project well
B． Hats in Harvard was supported by many people in Harvard
C． the family that gave Amaya the idea for Hats in Harvard knew Amaya
D． Amaya helped the families who needed winter clothing because she knew them
What's a spacewalk？ Any time an astronaut gets out of a spacecraft（航天器） while in space， it is called a spacewalk． Astronauts go on spacewalks for many reasons． For example， experiments can be placed on the outside of a spacecraft． This lets scientists learn how being in space affects（ 影响） different things． By going on spacewalks， astronauts can also fix things instead of bringing them back to the earth to fix．
When astronauts go on spacewalks， they wear spacesuits to keep themselves safe． Inside spacesuits， astronauts have the oxygen（氧气） they need to breathe and the water they need to drink． To keep the astronauts and the spacecraft safe， the astronauts must leave and go back to the spacecraft through a special door． When on a spacewalk， astronauts use safety tethers to stay close to their spacecraft． Tethers are like ropes， connect the spacewalkers with the spacecraft． They keep astronauts from floating（ 漂 浮 ） away into space． Another way astronauts stay safe during spacewalks is by wearing a SAFER． SAFER is worn like a backpack． It helps an astronaut move around in space．
How do astronauts train for spacewalks？ One way is by going for a swim． Floating in space is a lot like floating in water． Astronauts practice spacewalks underwater in a huge special swimming pool． For every one hour they will spend on a spacewalk， astronauts need to train seven hours in the pool． Another way astronauts practice for a spacewalk is by using virtual reality（虚拟现实）． It looks and feels just like a spacewalk．
Today， only three countries have finished spacewalks independently． They are Russia， the United States and China． The first person to go on a spacewalk in the world was Alexei Leonov from Russia． Zhai Zhigang is the first Chinese astronaut to go on a spacewalk． The world record of spacewalks is held by Russian astronaut Anatoly Solovyev． He has been on 16 spacewalks and spent more than 82 hours outside in space．
（1）About the spacewalk， we can know ．
A． some things can be fixed by astronauts during spacewalks
B． all experiments must be placed on the outside of a spacecraft
C． an astronaut can get out of a spacecraft any time while in space
D． a spacewalk lets scientists learn how being in space affects different things
（2）How many ways to keep the astronauts safe during spacewalks？
A． Two．
B． Three．
C． Four．
D． Five．
（3）What's the meaning of the word " tethers" in Paragraph 2？
A． 吊篮
B． 系绳
C． 笼子
D． 钩子
（4）Astronauts train for spacewalks by ．
A． floating in space
B． using virtual reality
C． going on spacewalks outside a spacecraft
D． training in water in a common swimming pool
（5）According to the passage， which is NOT true？
A． China can finish a spacewalk independently．
B． Astronauts can breathe and drink in spacesuits．
C． Astronauts can move around in space with the help of SAFER．
D． Anatoly Solovyev is the first person to go on a spacewalk in the world．
