问题 问答题 简答题

铁塔观浇基础对支模板工作有什么要求?

答案

参考答案:

(1)所用模板应有一定强度,内表面光滑,接缝严密,几何尺寸正确。

(2)支模前应校核档距、转角、根开、对角线。并平整坑底。

(3)模板要安装牢固,位置正确,每隔1m支撑一周,以保浇注时不发生移动。另外,组装、拆卸还不得使模板变形。

(4)模板在浇注前要涂刷一层隔离剂,涂刷时注意不要碰触钢筋。隔离剂一般多用废机油和柴油的混合料。

(5)钢筋骨架网与模板间应有一定的保护层间隙,底板钢筋网应垫起一定的高度。

阅读理解

阅读理解。

     It was the perfect weather for leaf watching, and my housemate Julie and I meant to spend the weekend

with our friends in the north Georgia mountains. "Don't you want to come along?" Julie asked her 15-year-old

son, Mark. "Enjoy the leaves by yourselves," he told her. "I'll be fine staying home by myself." Julie and I drove

there in my car after work on Friday. On Saturday morning we hiked along the mountainside and enjoyed the

beautiful colors. All of a sudden, I had a terrible feeling. "Go home," a voice seemed to urge me. I couldn't

explain it, but I didn't want to be here any more. I just wanted to go home. "Carol, calm down. You're being

silly," Julie said. But the urge just got stronger. "I've got to leave," I said. "If you want to stay, you can get a

ride back with everyone else tomorrow." Julie stood up. "No, I'll go with you," she said. We almost didn't talk

during the two-hour trip back. I felt very guilty. Finally, we pulled in. The lights were on in the house, but

something was strange. The windows seemed to be fogged up. Julie opened the door and smoke poured out.

"Mark!" she shouted. "Mark!" We rushed inside and found him asleep on the sofa. Shaking him awake, Julie

grabbed him. I grabbed the source of the smoke -a pillow too close to the fireplace. I then took it outside and

threw water on it. Mark had built a fire to keep warm, and some embers (灰烬) had flown out. The whole

house could have gone up if we hadn't gotten there just then!

1. What do we know from the text? [ ]

A. Leaf watching was Mark's hobby.

B. Mark stayed home with his friends.

C. Carol went to work on Friday.

D. Mark was Carol's cousin.

2. The underlined phrase "pulled in" in the last paragraph probably means "_____". [ ]

A. started the car

B. arrived home and stopped the car

C. moved away from the station

D. came home late

3. While driving home Carol _____. [ ]

A. was very terrified

B. drove at a great speed

C. knew she had made a mistake

D. hardly said anything

4. Why did Carol want to go home? [ ]

A. She didn't enjoy the leaves.

B. She received her son's telephone call.

C. She felt something urged her to go home.

D. She followed Julie's advice.

单项选择题