Life is all about learning. Experiences in life teach us new lessons and make us a better person. With each passing day, we learn to with different problems.
◆ Happiness and sadness
True happiness comes hard work. Whatever we do, do it well. Putting on a happy face and thinking interesting things are helpful to have happy feelings. Helping others is
a good way. When happiness comes, sadness goes away.
◆ Failure and Success
Failure shows us the right way, helps us grow up and teaches how to be successful. As the old saying goes, ”Failure is the mother of success”. Don’t be
of failure.
◆ Hope and Despair(绝望)
Hope is what keeps life going. Hope makes us dream. Life teaches us not to
give up hope even in the darkest hours, after every night there is a new day. Whatever happens, just keep moving on in life and be hopeful.
Life teaches us not to feel sorry for , for it has passed and can not be called back. Tomorrow is unknown, for it could either be bright or dark. So the
choice is to work hard today, so that we will enjoy a better tomorrow.
What do you do with your rubbish？Throw it out？You don't know what you're missing!Look closely at the two figures on your left.They were made from things most people throw away.The figures were made from used bottle caps.Those two bottle﹣cap figures were exhibited （展示） in a museum.
Folk art is art made by common people who have not been trained as artists.Their work is often based on traditions in their culture.Fine art，on the other hand，is usually made by people who have had training in art.Works of fine art are valued for their artistic beauty.They are supposed to be looked at but not used.Works of folk art，however，are often made for everyday use.
There were more than 800 pieces of folk art from nearly 50 countries in the exhibition.All of the pieces were made from used metal，wood，cloth，and plastic.The artists come from many different cultures.Still，they all share one thing.They take objects that are normally thrown away and change them into objects that are beautiful，useful，and fun.The artists may not think of what they do as recycling，but that's exactly what it is.Fine artists might work with expensive materials.They might use expensive tools to shape these materials into works of art.On the other hand，in poor countries rubbish might be the only material folk artists and toy makers can afford.The exhibition shows that a rich imagination is very important when there are only poor materials.Recycled art began long before people began to think about recycling.Some of the objects in the exhibition date from the 1930s.
Even if you don't create art out of rubbish，it's good to save our natural resources.Remember the three rules：reduce，reuse，recycle.If you reduce waste，true things instead of throwing them out，and recycle materials such as paper，plastic，and glass，you will protect the environment.
（1）Which idea belongs in the empty box？
Conclusion （结论） |
Details |
Art based on cultural traditions |
|
Art made for everyday use |
|
Art made with used materials |
A.Folk art is made by people who are not trained artists.
B.The artists come from many different cultures.
C.Recycled art began long before people started recycling.
（2）What can we learn from Paragraph 3？
A.There was more than 800 pieces of fine art.
B.Folk artists can't shape expensive materials into works of art.
C.Poor materials also can be made into works of art.
（3）What is the same thing of the pieces in the exhibition share？
A.They are all woks of fine art.
B.They are all made from used materials.
C.They are all made by the trained artists.
（4）What can we do to protect our environment？
A.Throw away used materials.
B.Only use expensive materials.
C.Recycle materials.
（5）Which of the following would be the best title for the passage？
A.Used Bottle Caps
B.The Art of Recycling
C.A Museum Exhibition
Dogs might have the latest tools in the fight against cancer （癌症）：their noses!Researchers at California's Pine Street Foundation （PSF） say they have trained five dogs to smell cancer on a prison's breath.This could be exciting news.
A dog's sense of smell may be 10，000 to 100，000 times stronger than ours.But can dogs really smell illness？PSF researcher Michael McCulloch says yes. "We were very surprised by how exact they were，" he said. "They were telling who had cancer，and they were also saying who didn't."
McCulloch and his team asked four healthy people and one with cancer to blow into plastic tubes （塑料管）.Special materials in the tubes kept the things of each breath.The tubes were then placed one yard apart.Finally the dogs were allowed to smell the tubes.Each dog had been trained for three weeks to sit when it smelled cancer.Ninety﹣nine percent of the time，the dog sat next to the tubes blown into by patients with lung cancer.The dogs were right 88 percent of the time about breast cancer.
Dogs in the Pine Street Foundation test were trained to sit when they smelled cancer.How well did they perform？Take a look at this chart to find out. |
||
Breath Sample |
Number of Times the Dogs Sat Down |
Number of Times the Dogs Kept Standing |
Breath from lung cancer patients |
564 |
10 |
Breath from healthy persons |
4 |
720 |
No lab test for cancer has given more correct results than this test.The results are so amazing that many experts question the dogs' smelling power.They wonder if there were other reasons why the dogs did so well.For example，they thought the way the dog trainers behaved could have influenced how the dogs acted.However，most experts agree that this study is important.The information could help scientists create a simple breath test for cancer in the future.Once again humans may be getting a helping paw or nose﹣from their best animal friends.
（1）What's the latest tool a dog might have in the fight against cancer？
A.Tooth.
B.Nose.
C.Ear.
（2）What happened first in the Pine Street Foundation test？
A.The dogs were trained.
B.The tubes were placed one yard apart.
C.The dogs smelled the tubes.
（3）What was a dog supposed to do when it smelled cancer？
A.Smell again.
B.Turn around.
C.Sit down.
（4）Look at the chart.How many times did the dogs keep standing when they smelled the breath from healthy persons？
A.Less than 10 times.
B.Almost 600 times.
C.About 700 times.
（5）Why do many experts question the dog's smelling power？
A.Because no lab test for cancer has given more correct results.
B.Because the dog trainers influenced how the dogs acted.
C.Because they don't think this study is important.
Can a green machine help the world's poorest kids learn better？Nicholas Negroponte thinks so.He and his team of scientists have invented a new type of computer.As a result，many children who live in poverty （贫穷） will have their own laptop computers!
Negroponte works at a university.He started a group called One Laptop Per Child （OLPC）.The people at OLPC don't work for money.They work to help children learn.OLPC makes computers that don't cost a lot.Then they sell the machines to governments of countries that have many people live in poverty.The governments then give the computes to kids for free.
The XO Laptop computers are made for school﹣aged children in developing nations.Many of these children live in faraway areas and go to schools with classrooms.In order to work，the laptops have to be lasting and student﹣friendly.
The machines have many fun characters like a built﹣in video camera，voice recording，and games.The WiFi lets students share information on the Web and read e﹣books.They also can make music and chat with friends.
Another great character is that it can last for a long time.It can be hand charged and also can be recharged by connecting to a solar panel.Because of these characters the XO laptops make learning fun while helping the environment.
The computers have a colorful name﹣"the green machine".Negroponte thinks they could make a difference in the lives of millions of kids.He says， "Every problem you can think of﹣poverty，peace，the environment﹣is solved with education."
OLPC plans to give out over ten million computers in the next few years.Kids in Thailand，Nigeria，Brazil，and Argentina will get most of them.China and Egypt also want to take part in the program.After that，Negroponte hopes to sell computers to other countries with high poverty.
（1）Negroponte thinks his laptop computers will help the world's poorest kids to .
A.work at home
B.go to school on time
C.learn better
（2）What can we know about the people at OLPC according to Paragraph 2？
A.They work for money.
B.They give computers to kids for free.
C.They sell computers to governments with many people living in poverty.
（3）Why do XO laptops make learning fun while helping the environment？
A.Because they are lasting and student﹣friendly.
B.Because they are made for school﹣aged children.
C.Because they have a colorful name.
（4）What does the underlined word " charged" mean in Chinese？
A.携带.
B.充电.
C.使用.
（5）Who will get most of the computers in the next few years？
A.Kids in Thailand.
B.Kids in China.
C.Kids in Egypt.
（1）41.0% of kids aged use the Internet.
A.5﹣9
B.10﹣13
C.14﹣17
（2）What percentage of kids gets news or information online？
A.89%.
B.76%.
C.38%.
（3）What do 43% of kids usually do on the Internet？
A.Play games.
B.Buy books.
C.Send or receive instant messages.
China's unbelievable high﹣speed rail network At the beginning of the 21st century China had no high﹣speed railways.Slow，crowded and often uncomfortable trains ran across this vast country，with low average speeds making journeys such as Shanghai﹣Beijing a test of travel. Today，it's a completely different picture.With 37，900 kilometers of lines，linking all of its major big cities.China has the world's largest work of high﹣speed railways.Half of that total has been completed in the last five years alone，with a further 3，700 kilometers due to open in the coming months of 2021.The network is expected to double in length again，to 70，000 kilometers，by 2035. |
（1）How were the trains in China at the beginning of the 21st century？
A.Fast.
B.Comfortable.
C.Crowded
（2）How many kilometers of lines are due to open in the coming months of 2021？
A.3，700.
B.37，900.
C.70，000.
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