Don't be too surprised if you see a car going down the road without a driver in Beijing these days. {#blank#}1{#/blank#}Last month, Baidu began to test its self-driving cars on open roads in Beijing.

    {#blank#}2{#/blank#}Since then, companies like Tesla, Uber and Baidu have been working to produce and test their own self-driving cars.

    Self-driving cars are safer than regular cars. {#blank#}3{#/blank#}They can remove the stress of driving and allow disabled or blind people to get around more easily.

    {#blank#}4{#/blank#}In one test, researchers pointed a laser pointer(激光棒) at the car's sensors(传感器) while it was moving. The car mistakenly thought that the laser beam was in its way and slowed down or changed the direction.

    The software that is used to direct the cars may not be safe enough. {#blank#}5{#/blank#}When we use our computers or smartphones, they sometimes crash (崩溃)  without any reason. But if this happened to a self-driving car, the results could be deadly. Improvements to the software could be a solution to this problem.

Four ways to have a good school life

    Your schooldays should be some of the best and happiest days of your life. How can you get the most from them, and be sure you do not waste (浪费) this great chance to learn?

    Be active (积极的) at school

    Don't say things are difficult or boring. Take interest in school life and your school subjects. Join lots of activities. Put up your hands quickly in class. Go around the school with a big smile. If you are not working, you are wasting your time at school. Teachers cannot make everything enjoyable (令人愉快的).

    Keep fit

    If you don't eat a good breakfast, you will be thinking about food in class. If you go to bed late and don't have enough sleep, you will be sleepy in class. Play enough sports every day in order to keep your body strong.

    Face the problem

    Do not say you will do things tomorrow. If you get behind the class, it is very difficult to get back in front. You cannot finish the race if you rest all the time. Everyone fails some exams, loses some matches and has bad days. Don't make small problems very big and important. Don't forget to ask for help. You are young, and no one thinks you must do everything quite well!

    Spend the weekends

    Don't waste time lying in bed on Saturday or Sunday morning. Go and play sports, get together with friends in the park to relax, learn to play the piano, or help someone with problem. If you don't want to go out, there are also a lot of things to do. You may read a book, practice English or help Mum with housework.

    Follow our advice, and have a happy school life!

    I didn't leave my hometown until l was sixteen years old. My hometown could bring back lots of sweet memories to mc. Yesterday I returned to my hometown. I have been away for three years.{#blank#}1{#/blank#}

    Before I left, there was a small pond (池塘) opposite my house, but now people have filled this pond and have built a large shopping mall. The things in it are good and cheap, so there are many people every day. {#blank#}2{#/blank#} We used to play baseball there, especially on weekends. Now a new stand(看台) has been added so that more people can sit there to watch games.{#blank#}3{#/blank#}The street in front of my house looks just as it used to be. People have built a public library in the next street.{#blank#}4{#/blank#}Beside the two streets, people have built a beautiful park. In it green trees and fresh flowers could be seen everywhere.{#blank#}5{#/blank#}I really hope our hometown will become more and more beautiful.

    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