[填空题]I am very tired, and have to ______ (每两三个台阶停下来休息).

[填空题]I am very tired, and have to ______ (每两三个台阶停下来休息).

[单项选择]Why did Mr. Bell feel very tired after returning home（　）.
A. He visited too many places in a hurry.
B. His holiday was not long enough for him to travel in Europe.
C. He was on the train or on a bus all day long during his holiday.

[单项选择]三个运动员跨台阶，台阶总数在100～150级之间，第一位运动员每次跨3级台阶，最后一步还剩2级台阶。第二位运动员每次跨4级台阶，最后一步还剩3级台阶。第三位运动员每次跨5级台阶，最后一步还剩4级台阶。问：这些台阶总共有( )级。
A. 119
B. 121
C. 129
D. 131

[单项选择]

W: You seem very tired recently.
M: It’s my new course. My teacher is very strict with me. What’s more, there are many assignments every day. I spend most of my time on them.

Why is the man tired（　）.
A. He is too weak to do his homework.
B. He is too busy with his studies.
C. He spends too much time on ball games.

[单项选择]

[听力原文]
W: You seem very tired lately.
M: It’s my new job. It’s hard work, and the hours are long.

Why is the man tired （）
A. His job is difficult.
B. His job is not interesting.
C. He doesn’t know how to do his job.
D. He only sleeps for a few hours a night.

[填空题]All of them felt very tired, (include) ______ that big and strong man.

[填空题]Jane was very tired. She (work) ______ all day.

[单项选择]三段论：是以包含三个不同词项的两个直言命题为前提，推出一个直言命题为结论，而且每两个直言命题都有一个共同词项的推理。
根据上述定义，下列属于三段论推理的是( )。
A. 或者你说错了，或者我听错了，我没有听错表明你说错了
B. 如果寒潮到来，气温就会下降，气温没有下降说明寒潮没有到来
C. 水银是金属，金属是能导电的物体，所以有的能导电的物体是水银
D. 老张是画家，老李是音乐家，他们是朋友，所以画家和音乐家可以做好朋友

[单项选择]I felt very tired when I got home. and I __________ straight to bed.
A. go
B. went
C. had gone
D. have gone

[单项选择]三个刚片每两个刚片之间由一个铰相连接构成的体系是（）。
A. 几何可变体系
B. 无多余约束的几何不变体系
C. 瞬变体系
D. 体系的组成不确定

[简答题]平面上有n个圆，其中每两个圆相交于两点，且每三个圆都不相交于一点，用f(n)表示n个圆把平面分成的部分个数．已知f(1)=2，f(2)=4，f(3)=8，f(4)=14…．试猜想f(n)的表达式，并用数学归纳法证明你的结论．

[简答题]Passage Three I am afraidtosleep. I have been afraidto sleep forthe last few weeks. I am so tired that, finally, I do sleep, but only for a few minutes. It is not a bad dream that wakes me; it isthe realityI took with me into sleep. I try to think of something else. Immediately the woman in the market place comes into my mind. I was on my way to dinner last night when I saw her. She was selling skirts. She moved with the same ease and loveliness I often saw in the women of Laos. Her long black hair was as shiny as the black silk of the skirts she was selling. In her hair, she wore three silk ribbons, blue, green, and white. They reminded me of my childhood and how my girlfriendsand I used to spendhours braiding ribbons intoour hair. I don’t know the word for “ribbons”, so I put my hand to my own hair and, with three fingers against my head. I looked at her ribbons and said “Beautiful.” She lowered her eyes and said nothing. I wasn ’t sure if she un
A. A．thought that the last offer was reasonable
B．thought she could still make much money
C．was glad that the writer knew their way of bargaining
D．was tired of bargaining with the writer anymore