Do you think of white when someone talks about a polar (北极)bear? In fact, the polar bear does not have white fur. It just appears to be white. Polar bears have a very good sense of smell. It helps them to find food. During summer, polar bears sleep longer, because they are able to find their food more easily at night. Usually, after a meal, polar bears have a short sleep. A polar bear can have 2-3 babies at a time. They live with their mothers until they are about two and a half years old.
However, polar bears will die out soon because of people. There are only 20,000 to 25,000 polar bears in the world. The ones that are left are trying to survive today. The number of polar bears is becoming smaller and smaller because of the loss of sea ice— polar bears mostly inhabit (居住于) the sea ice, not the land ice. This is happening because of global warming (全球气候变暖), pollution, hunting and so on.
Ordinary people don't care, but great people have the power and want to save tigers, fight for giant pandas and save polar bears. Ordinary people will wait, but great people will find a new world. For me, I will not wait. I will take the bus more often from now on. Join me and save the polar bears, and of course, the tigers, the giant pandas and...
| A．Global warming. | B．Pollution. |
| C．Hunting. | D．Travelling. |
| A．勤劳的 | B．聪慧的 | C．普通的 | D．坚强的 |
| A．To show that the number of polar bears is getting smaller. |
| B．To tell people that polar bears will soon have nowhere to live. |
| C．To let people know why polar bears are in danger. |
| D．To talk about polar bears and suggest that people protect animals. |
| A．A magazine about animals. |
| B．A book about greetings. |
| C．A poster about working plans. |
| D．An instruction book. |
The invention of barcodes（条形码）is based on a very simple idea.We only need to give each product a specific number and print it. （1） We could simply print the number itself.But this can cause problems.For example，an unclearly printed "seven" could look like a "one" to a computer.It's also true for "three" and "eight". （2） We need a better way of printing numbers so that they can be read correctly at high speeds.That's the problem barcodes solve.
Each number in a barcode is shown by seven blocks of the same size. （3） For example，the number "one" is shown in turn by two white stripes（条），two black stripes，two white stripes，and one black stripe.（4）
A barcode includes different parts and each one provides a specific meaning.The first part of a barcode tells you the country where the product was made.For example，690—692 is the barcode for China. （5） .The final part is about the product itself.This is how barcodes work.
A.Then computers can read it directly. B.All information can be shown by barcodes. C.The next part tells you who produced the product. D.And "nine" looks similar to "six" if you turn it upside down. E.Even if you turn it upside down，it isn't similar to any other number. F.These are colored either black or white to show the number zero to nine. |
Tangchang，a town in Chengdu，is well﹣known for cloth shoes.With over 20 types，Tangchang cloth shoes are strong，comfortable，breathable and friendly to the environment.In 2018，they were added to Sichuan's intangible cultural heritage list（非物质文化遗产名录）.
63﹣year﹣old Lai Shufang has spent over 40 years making Tangchang cloth shoes.Now she is a master.She said there are 32 steps to make a pair，but the most important step is making the soles.
Layers（层）of white cloth are glued together with flour paste（糨糊）. "To make good paste，we make it at a temperature of 85℃.If it's too low or too high，the paste will not work， "Lai said.Then the pasted layers are dried and cut into different shapes.After this，the layered cloth is beaten again and again until it is tight（紧实的）enough to make soles and upper parts.The next step is to shape the two parts and glue them together.But still the soles' edges look fluffy.Through repeated polishing and trimming，the fluffy edges（毛边）will become smooth.Then the cloth shoes are ready.
Lai's hard work touched her son Ai Peng.In 2015，Ai decided to leave his job and help his mother.He used Shu embroidery to make the shoes look more beautiful and opened a cloth shoe store online.He also set up shop windows to show the steps of making shoes，helping more people learn about the art of cloth shoes.
（1）What is the most important step in making Tangchang cloth shoes according to Ms.Lai？
A.Making the soles.
B.Making the upper parts.
C.Making good flour paste.
（2）What is the correct order of the following steps of making Tangchang cloth shoes？
①beating the layered cloth.
②making flour paste at an exact temperature.
③gluing the upper pars and the soles together.
A. ③②①
B. ②③①
C. ②①③
（3）How many things has Lai's son done to make the cloth shoes more popular？
A.Two.
B.Three.
C.Four.
（4）Which of the following questions is answered in the passage？
A.What are the features of Tangchang cloth shoes？
B.When did Ms.Lai become a master of cloth shoes？
C.What's the most important material in making cloth shoes？
（5）What is the best tile for this passage？
A.A Talented Shoemaker，Lai Shufang
B.Hand﹣made Cloth Shoes in Tangchang
C.Tangchang，a Well﹣known Town in Chengdu
a In the next three years，China plans to build 30 airports and 3 ，000 km of railways.Traveling will be more convenient.And more efforts will be made to improve roads in areas to make it easier for farm products to reach cities and industrial products to hit rural markets. China is also actively developing high﹣speed maglev （磁悬浮）trains.Many new technologies will be used in future projects. |
b What's the fun of being an architect （建筑师）？For French Architects Lacaton and Vassal，it' s about rebuilding!The couple won the 2021 Prizker Architecture Prize，which is regarded as the Nobel Prize for architects. The couple always try to make an old building a more enjoyable place to live or work in.Their work is friendly to both people and the environment. |
c China' s "Sky Eye" is open to the world since March 31.It can "see" objects about 13.7 billion light years away.China is giving 10% of its observation （观察）time，around 450 hours a year，to scientists from other countries. |
d Using mobile phones while driving is dangerous.That' s why the UK has introduced a new law this year. Now，making calls or sending messages while driving is not allowed.According to the new law，drivers using their phone to take a photo or play a game take the most punishment! |
（1）In which column of a newspaper can we find the four passages above？
A.Future Life.
B.New Discoveries.
C.News Around the World.
（2）Which of the following can we infer from the passages？
A.In the next three years，we'll be able to travel on high﹣speed maglev trains.
B.The French couple won Pritzker Architecture Prize for their rebuilding work.
C.The observation time of "Sky Eye" is around 450 hours in total per year.
（3）Which of the blanks can be filled with the underlined word "rural" in passage a？
A.My grandpa is used to the quiet and peaceful _______life.
B.In_______ areas，we always see many tall buildings and busy streets.
C.Margret wishes to enjoy the _______ life in the center of London again!
（4）Which of the following statements are opinions？
①China plans to build 30 airports in the next three years.
②The two French architects are creative.
③Sharing "Sky Eye" shows China's opening to the world.
④Using mobile phones while driving is punished in the UK now.
A. ②③
B. ①③
C. ②④
（5）Which of the following can be the common theme of the four passages？
A.The beautiful world.
B.Change for a better world.
C.Science and technology light up the future.
阅读下面短文，根据短文内容判断句子正误。正确的涂"A"，错误的涂"B"。
We did a survey about unpaid work among 300，000 married couples in our city.One third of them have no children，another third have one or two and the last third have three or more.The unpaid work includes childcare and housework.The diagram（图表）on the right shows the result of the survey. 
（1）According to the diagram， "more children" means "less unpaid work" for husbands.
（2）We can infer unpaid work done by wives with over 3 children will rise to over 50 hours a week.
（3）The survey shows childcare usually falls on wives.
（4）The diagram may explain why some wives want more children.
（5）The survey is based on family life.
STOP 2019﹣2021 HAVE VACCINE，STAY SAFE The World Health Organization （WHO） says， "Not enough is known about COVID﹣19 to draw final conclusions（结论） about how it passes from person to person，how it works and changes，how it can be best avoided，or the extent to which it has spread.We don't know bow long it will last.Safe vaccine is well﹣developed and it is the doctor's advice to receive it for our own good.To fight the virus，countries need to work together. FIGHT AGAINST CORONAVIRUS Homework from Xue Mingyu Class 1，Grade 9 |
（1）What does the writer mostly want to express in his poster？
He calls on（号召）the readers to COVID﹣19.
（2）Who created this poster and what was it made as？
It was created by a student named and made as his .
（3）Which word means"疫苗"in the passage？
It is .
（4）What should countries do according to the student？
He thinks countries should .
（5）Why did the student choose the WHO's words for his poster？
He wanted to let readers know the of COVID﹣19.
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