Why do people cry? Scientists say the body produces(产生)tears because it needs them. One kind of tears(眼泪)is for the eye， the other is for the heart. They both work as cleaners. If something else like dust(灰尘)gets into your eye， tears also come into the eye to clean it out. If you are hurt by something，your strong feelings produce some poisonous chemicals(毒素)in your body， and at the same time， tears come out with them. If tears don't help clean out these poisonous chemicals， they will do harm to(伤害)the heart.

    In the United States men have heart problems more often than women do. Doctors say heart problems have something to do with the pressures(压力)of living and working now. Perhaps men have more of these illnesses because they do not cry enough. They need to cry more.

    In fact，you can find many ways of reducing(减少)the pressures to keep fit. Crying is a natural(自然)and physical(生理)one.

    You know that eating a sensible diet and getting plenty of exercise help make your body healthy and strong.But do you know that there are ways to make your brain healthier and smarter? Here are some steps toward a smarter brain.

Limit your TV viewing

    ① Never spend too much time on TV viewing, for it needs very little brain activities.Your brain will become weak just as your muscles do.If you do watch TV, choose something educational and meaningful.

Travel

    Travelling to another country forces you to see and do things in a fresh way, bringing stimulation to the brain.

    Learn a new language

    Learning a new language involves different learning methods.Learning a language sharpens your brain and helps prevent memory problems that you may meet in later years.

Read often

    As you read, take the time to look up people or places that aren't familiar.Reading makes your vocabulary much larger if you always search for words and definitions that you don't know.Each week, choose an animal, a bird or fish, and read everything you can about it.Stretch your brain as you become an expert on the subject.

Calculate （计算）when you shop

    As you put things in your grocery cart, total everything in your head.See how close you get to the actual total.

    Use your non-dominant（不占优势的）hand

    If you are right-handed, use your left hand for everyday activities, or use your right hand if you are left-handed.Doing familiar things in a different way will make your brain create new neural （神经）networks.

Wechat（微信）

    ② Read messages from various people.They have different interests.And some say that learning to express yourself in just 100 words is a great brain challenge.

    Have a try and do these every day.Little by little you can get into the habit of challenging your brain, and make your brain smarter!

    We can see many people riding shared bikes in China now. Bike-sharing helps people to borrow a bike from one place and return it at another place easily.

    This kind of bike has GPS or Bluetooth on it. If you have a smart phone, you can use it. First, you have to download(下载)an APP on your smart phone. Then what you need to do is to find a nearest bike through the APP, scan(扫描)the QR code on the bike and you will get the bike. Then you can enjoy your trip. What's more, you can easily find one and never worry about where to park it. Every hour you ride, you need to pay only one yuan. It doesn't cost so much, does it?

    Science changes our lifestyles. We have to say bike-sharing makes our life easier. And we also hope that people can not only enjoy it but also put it to good use.

Read the passage and answer the following questions. (每题答案不超过5个单词)

⑴{#blank#}1{#/blank#} Chen Jin likes doing sports. He wants to live near a park.

⑵{#blank#}2{#/blank#} Meng Ting only likes Chinese food. He hopes his host family can speak a little Chinese.

⑶{#blank#}3{#/blank#} Liu Li likes living in a big bedroom cheaper than f350 a month. She doesn't like pets.

⑷{#blank#}4{#/blank#} Han Ping loves pets. She would like a bedroom cheaper than £220 a month.

⑸{#blank#}5{#/blank#} Liu Jun hopes to live near his school- Reading School. He'd like a bedroom with a bathroom.

    You don't have to be bored on a rainy day. Here are some new ideas：

    Tell stories. You might tell stories you heard before, or you might make up some really wonderful stories.

   ①   

    You can learn to cook a pizza or maybe some cookies. Give your friends a chance to help in the kitchen and make something tasty.

   ②   

    You might write stories on your own and then read them aloud to others, or you might write a story together.

   ③   

    Think of some scenes and then play a game. Act as teachers, doctors, nurses or policemen. You can dress up in whatever you may have.

   ④   

    Pick out some music and dance around in the room. You can also sing while others are dancing.

    Soon the next rainy day, try some of these ideas for a day full of fun!

    Started in 1636, Harvard University is the oldest of all the colleges and universities in the United States. {#blank#}1{#/blank#}

    In the early years, these schools were much alike. Only young men went to college. {#blank#}2{#/blank#} Little was known about science then, and one kind of school could teach everything that was known about the world. When the students graduated, most of them became ministers or teachers.

    In 1782, Harvard started a medical school for young men who wanted to become doctors. Later, lawyers could receive their training in Harvard's law school. {#blank#}3{#/blank#} Soon it began teaching American history.

    As knowledge increased, Harvard and other colleges began to teach many new subjects. {#blank#}4{#/blank#}

    Today, there are many different kinds of colleges and universities. {#blank#}5{#/blank#} There's so much to learn that one kind of school can't offer it all.

A. In 1825. besides Latin and Greek, Harvard began teaching modern languages, such as French and German.

B. Most of them are made up of smaller schools

C. Yale, Princeton and Columbia were opened soon after Harvard

D Students were allowed to choose the subjects that interested them

E. All the students studied the same subjects, and everyone learned Latin, Greek and Hebrew