阅读下列短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项。

One day, our English teacher Mr. White came into the classroom with a book in his hand. He started his lesson with a （1） , “Who can describe what stress is like?” No one answered. Then he raised the book and asked, “How （2） is the book?”

On hearing the question, we began to think and （3） . One student said, “I think it is 100g.” Another student said, “It’s 200g.” Our answers were different. （4） , Mr. White explained, “It doesn’t only depend on the real weight. It also has （5） to do with the time we hold it. If I hold it for a minute, it is OK. If I hold it for an hour, I will have a （6） in my right arm. If I hold it for a day, I will have to see a doctor. It is the exact same weight, （7） the longer I hold it, the heavier it becomes. This book （8） stress. If you hold it without putting it down, sooner or later, you will not be able to keep on. No matter how much （9） you have, stop and have a rest for a while if possible. Boys and girls, you should learn to relax yourselves. I am sure you will live a happy school life.”

We all （10） Mr. White for giving such a meaningful lesson which made a difference to us.

（1）

A．

song

B．

story

C．

question

D．

picture

（2）

A．

heavy

B．

big

C．

old

D．

thick

（3）

A．

guess

B．

practise

C．

read

D．

search

（4）

A．

Luckily

B．

Especially

C．

Secretly

D．

Finally

（5）

A．

little

B．

much

C．

nothing

D．

everything

（6）

A．

break

B．

wound

C．

disease

D．

pain

（7）

A．

and

B．

so

C．

but

D．

for

（8）

A．

makes up

B．

stands for

C．

takes in

D．

leads to

（9）

A．

stress

B．

time

C．

pleasure

D．

knowledge

（10）

A．

troubled

B．

excused

C．

feared

D．

thanked