阅读理解。
Mr Wise,
I'm a slow (迟钝的) student. Most of my classmates are much better than me. So I usually get stressed
out. Although I spend much time studying for the tests, I can't get good grades. Sometimes my father
gives me some help. He tells me not to worry about it. But it doesn't work. What do you think I should
do?
Xiao Ming
Dear Xiao Ming,
Many famous people were not so good when they were young, Einstein, a famous scientist, did poorly
in his studies when he was a 12-year-old boy, But he did a lot for the people in the world at last, When I
was at your age, didn't do well at school. But I kept working hard and I succeeded at last, You should
take it easy and try your best. Tomorrow is another day. I believe you can do better.
Mr Wise
1. Xiao Ming feels worried because _____.
A. he has a headache
B. he doesn't want to work hard
C. he doesn't like going to school
D. he is not as good as most of his classmates
2. Xiao Ming wrote this letter to_____ .
A. ask for some help
B. find a pen pal
C. tell his father his problem
D. let all his classmates know it
3. Mr Wise wrote about a famous person to _____.
A. make Xiao Ming angry
B. make Xiao Ming feel better
C. show how much he knows
D. show that he hates Einstein
4. In Mr Wise's letter, "Tomorrow is another day. " means "_____",
A. Tomorrow is the weekend
B. One can get good grades tomorrow
C. Tomorrow is the same as today
D. There are a lot of hopes in our lives
5. From the second letter, we know Mr Wise might be _____ before.
A. a doctor
B. a scientist
C. a slow student
D. Xiao Ming's best friend
适量的蒸馏水使它溶解并恢复至室温。
不慎超过了刻度线 d.砝码上沾有杂质（或者使用生锈的砝码）