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．
As the saying goes， "A hero is known in the time of misfortune．"
Zhong Nanshan is a hero like this． He is a doctor in Guangdong． He saved many people's lives in 2003． In 2003， SARS （非典） broke out （爆发） in Guangdong． Hundreds of patients even died from the disease． But Zhong was brave enough to fight the disease． Many patients got better． In early 2020， a disease called COVID﹣19 （新冠肺炎） hit Wuhan． It spread quickly． Thousands of Chinese people were infected （感染）．Zhong led his team to Wuhan to fight the illness．Zhong advised people to wear masks， wash hands frequently （频繁地），stay at home and not to go to crowded places．
Zhong likes sports very much． Although he was 84， he could still play basketball． Zhang still treats patients in the hospital and teaches young doctors． He always says "I am just a doctor．" But we think he is a hero and a fighter．
（1）What does Zhong Nanshan do？
A． A doctor．
B． A nurse．
C． A patient．
（2）From the passage， we know Zhong Nanshan is a man．
A． unhealthy
B． brave
C． shy
（3）Zhong Nanshan gave the following advice EXCEPT （除了） ．
A． wear masks
B． wash hands frequently
C． go to croweded places
（4）The underlined sentence "A hero is known in the time of misfortune．" probably means according to the passage．
A．英雄所见略同
B．英雄不问出处
C．时势造英雄
There are some funny activities this week! Everyone who is interested in them looks at the notice!
Monday Meeting Room 18：00﹣20：00 Mr． Green's report： High﹣speed Trains Come and learn about the high﹣speed trains! |
Tuesday Meeting Room 18：30﹣21：00 Mr． Smith's lesson： Mobile Payment Mr． Smith is from Beijing University． Learn more about mobile payment |
Wednesday Library 1930﹣21：00 Mr． Brown's report： Online Shopping Would you like to learn online shopping？ Please come and listen! |
（1）If you are free on Monday， you can learn about ．
A． High﹣speed Trains
B． Mobile Payment
C． Online Shopping
（2）Who can give a report about online shopping？
A． Mr． Green．
B． Mr． Smith．
C． Mr． Brown．
（3）How long does Mr． Smith's lesson take？
A． 2 hours．
B． 2 and a half hours．
C． 1 and a half hours．
Social media（媒体）is a big part of most people's lives． There are social apps and sites like WeChat and Sina Weibo， as well as video apps like Douyin and Kuaishou． How do you behave when you use these apps？
Recently researchers at the University of Sussex，UK， studied social media users ranging from 10
to 15 years old． They found that they can be divided into four personality types．
Geeks（极客）
Geeks are active social media users，but they find it much more difficult to deal with the life in the real world． Most of them are boys who like playing computer games and making music and videos． They often post creative works online， using fake（假的） names． In fact， they should avoid spending too much time on the Internet．
Internet celebrities
Internet celebrities like sharing as well ， but they are much more visible （看得见的） than geeks． They might become well﹣known for their singing or dancing． But many of them， especially teenagers ，share almost every side of their lives in order to own more fans． Being a teenage Internet celebrity can sometimes cause problems in the real world．
Lurkers（潜伏者）
The first two groups are lucky to find a place to show their talent． But most teenagers fall into the third type﹣﹣﹣﹣ "lurkers"，or people who are neither too active nor visible．This group prefers WeChat over Sina Weibo， as WeChat has private groups． They can't express themselves well but at least they make sure to protect their personal information．
Victims（受害者）
Victims don't have enough knowledge to keep themselves safe online Their personal information can be made public and cause problems for them． To avoid being a victim， you should check your personal settings on social media．"Friends only" is a good choice for your posts． Don't share your personal information．
（1）What does the underlined word "they" in Paragraph 2 refer to？
A． Researchers at the University of Sussex， UK．
B． Social media users ranging from 10 to 15 years old．
C． Researchers and social media users ranging from 10 to 15 years old．
（2）What do geeks often do on the Internet according to the passage？
A． They share almost every side of their lives．
B． They share their personal information．
C． They post creative works．
（3）The underlined phrase "Internet celebrity" in Paragraph 4 means in Chinese．
A．网络用户
B．网络名人
C．网络博主
（4）Which of the following is TRUE about lurkers？
A． They would rather use WeChat than Sina Weibo．
B． This group is both active and visible．
C． Lurkers don't have enough knowledge to keep their personal information safe online．
（5）The passage is written to
A． offer tips for social media users．
B． teach social media users to use different apps．
C． describe four personality types of social media users．
Chen Lin is a doctor who is from Hengyang，After his graduation from Peking University，he works in an office for a large organization． And this job can sometimes be just as exciting and dangerous as being an explorer．
Chen Lin works for MSF，an organization also known as Doctors Without Borders（无国界医生）．MSF sends trained doctors all over the world to help people after a war or disaster（灾难）． Chen Lin has traveled to many places to organize programs that help people in need．
At present，there are over 27，000 trained medical staff taking part in MSF projects and tasks．The organization received the Nobel Peace Prize in 1999．All kinds of doctors can volunteer for MSF．They need to be prepared to go almost anywhere in the world and，of course，they should expect difficult conditions．Doctors with experience in tropical （热带的）diseases are especially useful because most of MSF's work is in Africa．When MSF accepts a doctor for a task ，he has to go for at least six months．When doctors have completed a few tasks，they might be sent on an emergency task following a disaster， such as an earthquake．
But why would a doctor leave a comfortable life and a good salary to join MSF？ According to Chen Lin，the experience you have is a great help in your career．Besides，just like the explorers of the past，you need to keep an open mind and learn to get along well with the people you meet． Most importantly，at the end of each task， you have made a real difference to people's lives．
（1）According to the first paragraph， which is NOT true about Chen Lin？
A． Sometimes， Chen Lin's job may be dangerous．
B． Chen Lin comes from Guiyang．
C． He graduated from Peking University．
（2）MSF sends trained doctors throughout the world to help people ．
A． before an earthquake．
B． who are homeless．
C． who are injured in a war or a disaster．
（3）Who are greatly needed in Africa according to the passage？
A． Doctors who have experience in tropical diseases．
B． Doctors who are kind and patient．
C． Doctors from all over the world．
（4）What does a doctor have to do if he is accepted for a task by MSF？
A． He has to complete a few tasks．
B． He has to go for at least six months．
C． He has to go to Africa．
（5）From Dr． Chen's words， we learn that ．
A． Where there is a will there is a way
B． Good health is over wealth
C． Giving is getting
There are plenty of myths（神话） to explain how the world came to have a moon to bring light to the night time． But now there is a plan for a man﹣made moon． It will give us much more light than the natural Moon．
China is preparing to put a man﹣made moon in the sky above Chengdu by the end of 2020．It will reflect sunlight back onto the Earth． If it succeeds， three more such objects will be sent out in 2022，according to Wu Chunfeng， a space scientist． Wu said it would be similar to how we get moonlight， but he predicted（预言） that the man﹣made moon would have eight times the brightness of the real one．
This is because the object will be about 500 kilometers above the Earth． That will make it much closer to us than the moon， which is over 380 ，000 kilometers away，Wu added．
If the plan works， the man﹣made moon will save a lot of power．Scientist predicted that Chengdu could save around 1.2 billion yuan in electricity every year if a new moon lit up 50 square kilometers of the city．And in 2022 ， four man﹣made moons can take turns reflecting sunlight as they will not always be in the best position relative to the Sun． Together， they can give light to an area of up to 6 ，400 square kilometers on the Earth for 24 hours．That means its brightness will be seen in most areas in China，so reducing the need for streetlights．
（1）Which country is preparing to put a man﹣made moon in the sky above Chengdu by the end of 2020？
．
（2）What does Wu Chunfeng do？
．
（3）How far is it from the Moon to the Earth？
．
（4）Will it reduce the need for streetlights if the plan of man﹣made moons succeed？
．
（5）What do you think of this plan ？
．
粤公网安备 44130202000953号