But McDonald's is a fast-food __1__. When I think of fast-food I think of words like“junk food”,“poor nutrition（营养）”and“overweight（超重）”. Almost everyone will say fast food is __2__, but they still eat a lot of it anyway. Yesterday I learned how __3__ this was.

　　At school we saw a video, called“Supersize Me”. A man decided to study what would happen to a person who ate McDonald's food all the time. So, he ate it, three __4__ a day, for a month. By the end of the month he had put on（增加）more than twenty pounds. He had fat in his liver（肝）and blood, he lest some muscle（肌肉）, felt __5__ all the time and couldn't help wanting hamburgers. The video said that it took the man about half a year to lose the weight he had put on.

　　The video also said that America is one of the __6__ countries on earth. About one in every four grown-ups is overweight. Will it slowly get to the schools? Maybe it will. Most high schools already have vending machines（自动贩卖机）with soda and other junk food. Their cafeterias sell __7__, pizza and hot dogs. Some schools don't even have PE classes.

　　We live in the “computer age”. People like scientists, teachers, writers and even students use computers to do __(1)___ work. But more than 30 years ago, __(2)___ couldn't do much. They were very big and expensive（昂贵的）. Very __(3)___ people were interested in them and knew how to use them. Today computers are smaller and __(4)___. __(5)___ they can do a lot of work, many people like to use them. Some people even have them at home.

完型填空。

    We live in the “computer age”. Scientists, teachers, writers and even students use computers to do  1  different things. But more than 30 years ago,  2  couldn’t do much. They were very big and expensive.  3  people showed any interest in them or knew how to use them. Today computers are smaller and  4  . Since they are so useful, a lot of people like to use them, even at home. Computers  5  very important because they can work  6  than people and make fewer mistakes. Computers can  7  people with their work. Writers use computers to write books and articles, for example. Teachers use them to help them teach and students use them to study. Computers can also remember what you put  8  them. Computers are very  9  . They are our good friends. Do you want to   10  a computer?

（    ）1．A．much                B．about               C．all kinds of          D．very much

（    ）2．A．teachers            B．computers        C．students         D．scientists

（    ）3．A．Few                  B．A Few             C．Little                   D．A little

（    ）4．A．cheap                B．cheaper            C．expensive            D．more expensive

（    ）5．A．have become      B．is becoming    C．becomes             D．has become

（    ）6．A．tell                    B．help                 C．fast                     D．faster

（    ）7．A．tell                    B．help                 C．stop                    D．ask

（    ）8．A．on                     B．into                 C．up                      D．to

（    ）9．A．heavy                B．careful          C．helpful         D．beautiful

（    ）10．A．lend                 B．pay                  C．own                    D．sell