问题 填空题

某同学在做一道题:求代数式10x9+9x8+8x7+7x6+6x5+5x4+4x3+3x2+2x+1当x=﹣1时的值.由于将式中某一项前的“+”号错看为“﹣”号;所以他得出的答案是7.那么该同学把(       )项的符号看错了.

答案

6x5

阅读理解

Most American families like to have a vacation in summer. Summer is a good season for vacation. It is often hot in July and August.

Children do not go to school in those two months. Some people like to stay at home, read books, or watch TV. Many families take their lunch to eat at a place with many trees or a nice lake.

Some people have enough time and money to travel to other countries like France, Japan and Australia. They usually fly to these countries. Many families travel by car or train to see interesting places in their own countries. Their favorite cities are New York, Chicago, Miami, San Francisco and Los Angeles.

Not everyone likes to go to busy cities. Some families travel to mountains or beautiful valleys.

根据短文内容,从A、B、C、D四个选项中选择正确答案,并将其字母代号填入答题卷相应空格内。(共5小题,每小题1分,满分5分)

小题1:       is a good season for vacation.

A.Spring

B.Summer

C.Autumn

D.Winter小题2:Many people don’t         during their vacation.

A.read books

B.travel

C.watch TV

D.go to work小题3:Many families like to have their lunch       during their vacation.

A.in the office

B.near a cinema

C.near a big factory

D.near a nice lake小题4:If you have        , you can travel to other countries.

A.money and friends

B.friends and time

C.money and time

D.food小题5:Which of the following is NOT true ?

A.Summer vacation is about two months long.

B.Some people usually go to other countries to travel.

C.Everyone likes to travel to busy cities.

D.It’s often hot in July and August in America.

单项选择题