WeChat (微信) was put into market in January 21, 2011. Because of its attractive functions(功能),low cost and convenience, it becomes a hot free software. You can see people around you using WeChat to talk with their friends now. They are especially students in high schools and universities. The other users are workers. The age range is from ten to sixty years old. Most people may become WeChat users.
WeChat supports Wi-Fi and 3G network. It can enjoy group chat up to 20 people. What's more, WeChat can search people around you. It also supports to send video. You can share the wonderful pictures with other people at any time. It can share your messages to the world and make new friends. WeChat not only can keep your pictures and texts in a way, but also can help you to catch your messages. WeChat makes two people "talk" with each other in different places and at different time. People believe that there will be many other functions created in the future.
The cost of WeChat is very low. It costs nothing to own WeChat if you have a phone such as Nokia
Motorola, Lenovo. However, it costs web traffic (流量) to send and receive messages. It is enough to spend ten yuan on your web traffic for a month. The low cost is one of the main reasons why WeChat becomes popular. WeChat was created after January 21, 2011.
Most people may become WeChat users except the old people.
WeChat won't be created with other functions in the future.
You can use WeChat to talk with twenty people at the same time by smart phone.
The cost of WeChat is very low, but the web traffic cost is very high.
Durbeyfield sat down upon the grassy land by the roadside，putting his basket before him.In a few minutes，a youth from his village appeared in the distance.On seeing him，Durbeyfield held up his hand，and the boy quickened his steps and came near.
"Boy，take up that basket!I want you to do something for me. "
The skinny boy frowned（皱眉）， "Who are you then，John Durbeyfield，to order me about and call me 'boy'？You know my name as well as I know yours!"
"Do you，do you？That's the secret — That's the secret!Now obey my orders，and Fred，I don't mind telling you that the secret is that I'm one of noble race（贵族） —it has been just found out by me this present afternoon." And as he made the announcement，he luxuriously（奢侈地） lay himself upon the land among the flowers.The boy stood before Durbeyfield，and looked at him from head to foot.
"Sir，John D' Urberville — that's who I am， " continued Durbeyfield. " Do you know such a place as Greenhill？ "
"Yes.I have been there to Greenhill fair（集市）. "
"Well，under the church of that city there lie my ancestors（祖先） —hundreds of them — in coats of jewellery.There is not a man here who's got greater and nobler ancestors than I. "
"Oh？ "
"Now take up that basket，and go on to the Pure Drop Inn，telling them to send a horse and carriage（马车） with a servant（仆人） here quickly，to carry me home.And when you've done that，go on to my house with the basket，and tell my wife to put away that washing，because she needn't finish it，and wait till I come home，as I've news to tell her. "
As the boy stood in doubt，Durbeyfield put his hand into his pocket.And produced a shilling （a unit of money used in Britain until 1971）.
"Here is for your work，son. "
This made a difference.
"Yes，Sir John.Thank you. "
The boy took up the basket and set out at once.
（1）What did Durbeyfield ask Fred to do？
A.Listen to a story.
B.Find out a secret.
C.Send messages for him.
D.Drive a horse and carriage for him.
（2）Which of the following about Durbeyfield is TRUE？
A.He did believe he was a noble.
B.He wanted to play a trick on Fred.
C.He was the richest man in the city.
D.He used to live in Greenhill.
（3）What made the boy willing to work for Durbeyfield？
A.Durbeyfield's secret.
B.Durbeyfield's order.
C.His visit to Greenhill fair.
D.The unit of money.
（4）What is most probably the relationship between Durbeyfield and Fred？
A.Father and son.
B.Neighbors.
C.Close friends.
D.Master and servant.
In the Spring and Autumn period （475 ﹣ 221 BC） there lived a man called Ji Zha.He was the fourth son of the king of the Kingdom of Wu.Because of Ji Zha's sticking to righteousness（正义）and wide learning，he was his father's favorite and the king wanted to make him his heir（堆承人）.However，Ji Zha refused because he thought the king's eldest son should be the one to receive the throne.Later，Ji Zha served as an ambassador（外交大臣） of Wu to other kingdoms in China.
Once，on a mission to the Kingdom of Lu，Ji Zha passed through the Kingdom of Xu.The king of Xu received him as a friend，and admired the valuable sword（剑） Ji Zha was wearing.Although his host didn't mention it，Ji Zha could see he wanted to own it very much.However，as he still needed to go to Lu，Ji Zha didn't give the king of Xu his sword as a present.
After finishing his mission to Lu，on his way back，Ji Zha once again passed through Xu.This time he decided to give the sword to the king of Xu.But when he arrived，his friend had already passed away.Ji Zha didn't expect it and felt very sad.He took off his sword and gave it to the dead man by hanging it on a tree near his tomb（坟墓）.
Ji Zha's attendants （随从）didn't understand his action，saying， "Sir，the king of Xu is already dead.Why do you still give up your sword to him？ "
Ji Zha shook his head， "When I came to the Kingdom of Xu last time，I noticed that my friend admired my sword and I decided that when I came back I would give it to him.However，I never expected this turn of events.But how could I change my mind just because the man had died？" With these words，he left the place，low﹣spirited and heart﹣broken.
（1）What do we know about Ji Zha from the passage？
A.He was born in 221 BC.
B.He didn't have the ability to be a king.
C.He was a careful and generous man.
D.He lost his fight for the throne to his brother.
（2）Why did Ji Zha give up his sword to the king of Xu although he had died？
A.He was loyal to his country.
B.He was loyal to righteousness.
C.He wan guilty of his friend's death.
D.He was guilty of not seeing his friend before his death.
（3）What is the best title of this story!
A.Ji Zha and His Friend.
B.Ji Zha and His Country.
C.Ji Zha Gives Up His Throne.
D.Ji Zha Gives Up His Sword.
In modern times.our clothes seem good enough to meet our needs both in color and style.However，are you impatient with washing your clothes so often？Are you tired of the same color？If your answer is "Yes".Let's meet the fashion in the future.
Sun﹣No﹣Spot
To clean this shirt，just stand in the sun!A special material on the surface receives UV light from the sun.This heats it up enough to make stains（污渍） missing.You stay cool but stains disappear!Some stains disappear in minutes—others might take a day.
New Fabric Suit
Are you sick of holes in your clothes？This new material repairs itself!If this cloth gets a hole.just rub （搓揉） the broken place quickly.Heat from the rubbing will cause the materials to connect with each other again，repairing the hole.Hole？What hole？
New Wiggle Vigor
This cloth gets a charge（充电） from running around.As you move，the thin wires in the material turn your movement into power.This can charge a computer，an ipad，a hair﹣dryer，and many other small things that need power.
Chameleon Cloth
Tired of the same old look？How about clothes that change colors？This material is made with dyes（染料） that change colors when they get warm.A small battery heats up thin metal threads（金属线） in the cloth.to change colors or forms.
（1）If your Sun﹣No﹣Spot shirt is dirty with stains，what can you do to clean it？
A.Warm it in the sun.
B.Rub it quickly.
C.Connect it to a computer.
D.Change its color.
（2）If your mobile phone has no power.which one can help you？
A.Sun﹣No﹣Spot.
B.New Fabric Suit.
C.New Wiggle Vigor.
D.Chameleon Cloth.
（3）Which of the next pictures goes well with Chameleon Cloth？
A. 
B.
C.
D. 
Rice is one of the most commonly eaten basic foods around the world.Buying it and cooking it is a daily matter.Yet for many，its presence has been a matter of life and death.It is a main food because it is easy to grow，besides low cost and convenience.A poor community in the developing world may find it difficult to bring in foreign fruits or raise cattle for meat，but it can almost certainly use the land it has in order to grow plenty of rice.
This was the great achievement of Yuan Longping，who passed away on May 22 this year.A great Chinese scientist，Yuan successfully developed what is known as "hybrid rice" which can produce up a 30% higher output.Yuan Longping was born in the year 1930，a time when China was very different.It was a nation，without modern industry，depending on the rice which they grew.The first few decades （十年） of his life were met with major social events，and a rapidly growing population that made food supply not last all the time.This experience left its mark on Yuan Longping，which made him focus on （关注） farming science and work on his research of hybrid rice.
His achievement would see the rice supply in China increasing from 56.9 million tons in 1950 to 194.7 million tons by 2017.By 1991，20% of the world's rice output came from hybrid rice，even if only being planted in 10% of fields.
Always remember，human development begins first with the most basic and sample things，such as developing rice.We should be thankful for scientific thinkers like Yuan.
（1）Why is rice a main food around the world？
（2）What did Yuan develop successfully？
（3）When was Yuan Longping born？
（4）What made Yuan focus on farming science？
（5）How many tons was the rice supply in China by 2017？
5 ways to train your brain for better sleep
The days are longer，full of sunshine and bright with the promise of enjoying a more relaxing spring and summer with your loved ones.But if you want to enjoy your daytime，it's time to improve your sleep during the night﹣time. "Sleep problems endanger health and quality （质量） of life for up to 45% of the world's population，" according to the World Sleep Society.
Sleep is one of the three keys to a healthier，longer life （the others are diet and exercise）. （1） .Here are the top five ways to improve your sleep and get some zz's：
Create a sleep nest
（2） .Science tells us that we sleep better in cooler temperatures of about 60 to 67 degrees Fahrenheit（15℃to 20℃）.
Develop a routine
Set up a bedtime ritual by taking a warm bath or shower，reading a book or listening to soft music.You're teaching your mind to relax.And stick to it.Go to bed and get up at the same time each day，even on weekends or your days off. （3） .
Cut the lights
Production of the sleep hormone melatonin （荷尔蒙褪黑激素） begins at dark.Research has found that the body will slow or stop it with light on，to get away from any light，even the blue light from your charging smart phone.
Refuse the wine
Don't turn to wine to make you calm or help you sleep.（4） .Your body needs to experience all three steps of sleep—light sleep，dream，and deep sleep—to fully repair itself.
（5） .
Heavy and spicy foods may give you heartburn or other digestive problems，thus influencing your ability to get and stay asleep.
If you try these tips and can't seem to relax，or your sleep continues to worsen，be sure to reach out to your doctor or a mental health professional.
A.The body like routine B.Avoid heavy or hot foods C.Refuse coffee later in the day D.One of the first tasks is to set up your sleep environment E.Wine may help you fall asleep，but it holds you in the lighter sleep F.Many of the ways to increase the quality of your sleep are easy to follow |
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