一小石块悬挂在弹簧测力计下，静止时示数为2N，浸没在水中静止时示数为1. 5N，

清汤的主料为鲜料。（）

阅读理解。

     In many western schools, sports day is a big event. Children take part in competitive (竞争性的)

sports, trying to break school records and take the first place.

     Sports days, or sports meets, are usually held in the warmer seasons, either at the beginning or the

end of the school year. They are also called field days.

     Primary school sports days are fun. They usually have activities such as the egg and the spoon race

and the sack race. Other events include the skipping race (跳绳) and the three-legged race. In middle

and high schools, sports days include many of the common track and field events (田径项目).  They

are more serious and competitive than primary school ones.

     Students' parents and other relatives also come to the  school on sports days. They watch children

play. Many schools in the West have "mothers and fathers" races for parents to take part in!

     Although sports days are exciting, they also have some problems. According to some reports in the

USA, sports days have become too competitive to be good for students. Some parents put too much

pressure(压力) on the children. Some schools don't have "mothers and fathers" races any more as there

is much fighting and cheating.

短读阅文，回答下列问题。

1. What do children try to do when they take part in sports meets?

___________________________________________________

2. When are sports days usually held in the school year?

___________________________________________________

3. What are primary school and middle school sports days like?

___________________________________________________

4. Who would come to the school to watch children play on sports days?

______________________________________________________

5. What does the writer think about sports days?

______________________________________________________

1998×19991999-1999×19981998．

A．不要骑马了

B．你做得很好

C．你千万别做

D．做这些晚了

虫孔构造