客厅里有一块窗帘长3米、宽1.2米. (1)这块窗帘有多大? (2)如果要在窗帘

题型:解答题

问题:

客厅里有一块窗帘长3米、宽1.2米.

(1)这块窗帘有多大?

(2)如果要在窗帘的周围缝上花边,你认为应买回多长的花边(四边都缝)?

考点:长方形的周长
题型:解答题

阅读理解。

     The meeting lasted three hours. Mr. Jackson looked at the clock on the wall. It was a quarter to eight.

"The last bus started fifteen minutes ago," thought the man, "It means I'll have to stay in a hotel tonight."

     Mr. Jackson always drove home after work. He lived outside the city. There was something wrong

with his car these days, so he had to take a bus to his office. That afternoon, he had to discuss something

important with others, so he couldn't catch the bus. At last the meeting was over. It began to snow after he

came out of the warm office. He wanted some warm food and soup first. Most restaurants were full of

people and he went into a small one. The waiter came up quickly and showed the menu to him.

     "Some hot soup, please." said Mr. Jackson.

     About twenty minutes later, the young man brought the soup to him. When Mr. Jackson was drinking,

he found something in it. "Come here, boy," he called out, "Look! There's a gray hair in my soup!" " It's

very strange, sir," said the waiter. " It's usually a fly, I remember."

1. Mr. Jackson usually went home _____. [ ]

A. by bus

B. by car

C. by bike

D. on foot

2. _____, so Mr. Jackson had to stay in the hotel. [ ]

A. The last bus left

B. The meeting was very important

C. Something was wrong with his car

D. It was very cold that evening

3. The last bus started at ______. [ ]

A. 7:30

B. 7:45

C. 8:00

D.8:30

4. Mr. Jackson wanted some hot soup first because _____. [ ]

A. the restaurant was very cold

B. he was hungry

C. there was few people in the restaurant

D. he felt cold after he left the warm office

5. The waiter's words mean that _____. [ ]

A. the soup in the restaurant was nice

B. the hair was Mr. Jackson's.

C. there were usually flies in the soup

D. he had to say sorry to Mr. Jackson

题型:解答题

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(1)图1中关系到的化学反应的基本类型______.

(2)图2涉及到的化学反应方程式为:______,由此可以推测气球随着反应的进行会______(“变小”或“变大”).

(3)图3实验中,能观察到的现象为:______.

题型:解答题

地震引发海啸、台风、火山喷发等都会产生______ (选填“超声波”或“次声波”);地震造成日本福岛核反应堆冷却系统损坏,采取不断向反应堆空中、地面注水的方法进行冷却,可避免造成更大的核事故,该冷却方法利用水______ 较大的特性;核能是______ 能源(选填“可再生”或“不可再生”).

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美国历史学家斯塔夫里阿诺斯指出:“1500年至1763年的这些岁月是全球开始统一的时期,是从1500年以前时代的地区孤立主义到19世纪欧洲的世界霸权的过渡时期。”不能佐证这一观点的是[ ]

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题型:解答题

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