1 . Basketball     1    by James Naismith, a     2    doctor. It is    3    that the first basketball game     4    (play) on December 21, 1891. And then in 1936, basketball became an Olympic event at the Berlin     5    .How to play basketball? Players     6    (divide) into two teams. Players on the same team must work together to get the ball in the other team’s     7    . At the same time, they need to     8    the competing team from     9    (get) the ball into their own basket. Today, basketball is played by     10     100 million people in over 200 countries. Young people look     11    the basketball    12    . They     13     becoming famous players, too. And the stars encourage them to work hard to     14     their dreams.

2 . 综合填空，根据短文内容及首字母提示补全单词，使短文完整、通顺。
How can we students keep ourselves safe? Here are some tips.
On your way home or to school: wait for the g    1     traffic light, and look left and right before you cross the road. If you see a car coming, don't cross until it really s    2    . Dress in bright colors, so the drivers can see you c    3    .
At school: when students around you begin to push, try to hold onto something, or stay in a safer corner. If you f    4    down in a crowded place, cover your head w    5     both hands.
When there's a fire: stay calm and leave quickly. Use a piece of wet cloth to cover your mouth and nose so that you don't breathe in s    6    . If your clothes catch fire, drop to the g    7     and roll from side to side to put out the fire.
For eating: wash f    8     like apples or pears carefully before you eat them. Check the expiration dates (保质期) and if your food looks or smells b    9    , don't eat it.
For riding on the escalator (自动扶梯): hold onto the handrails (扶手) and stand on the right side of the escalator because right arms are stronger. It is d    10     to run up and down on them. You may fall down because escalator steps are not designed for running.