对构成比的描述正确的是（） A.其合计可以大于100%也可以小于100% B.其合计

Xia Ming was worried about his study, so he wrote a letter to a magazine.

Dear editors, I’m a slow student in my class. Most of my classmates are much better than me. So I get very stressed out. It’s difficult to keep on working hard and it’s really not fun. And I think although I spend much time studying for the tests. I can’t get good grades. My father gives me some help sometimes. He tells me not to worry about it. But what do you think I should do? Xia Ming

Two readers read the letter from the magazine and here are their answers:

Dear Xia Ming, Many famous people are not so good at the age like you. Edison, the famous scientist, had a bad headache for his studies when he was a 12-year-old boy. But everyone knows that he did a lot for the people in the world. And Newton had the same story like him. You should take it easy, then try your best. I believe you can do better. Thumbelina

Dear Xia Ming, When you are feeling stressed out, just smile and take a deep breath(深呼吸), you should believe tomorrow is another day. Mr Unsmart

小题1:Xia Ming worried about ______.

A．his classmates

B．his life

C．his study

D．his father

小题2:Thumbelina gave ______ examples in the letter.

A．one

B．two

C．three

D．four

小题3:Thumbelina wrote about those famous people _______.

A．to make Xia Ming feel better

B．to make Xia Ming laugh

C．to show how much she knows

D．to show that she dislike them

小题4:Which is NOT true?

A．Xia Ming doesn’t have fun studying at school.

B．Xia Ming’s father always helps him with his study.

C．Smiling can reduce the pressure.

D．Edison is famous in the world.

小题5:“Tomorrow is another day.” tells us ______.

A．It’s the weekend tomorrow

B．Xia Ming can get good grades tomorrow

C．Tomorrow is different from today

D．There are hopes in our lives