问题 问答题 案例分析题

某化工企业的苯胺、硝基苯等产品建设项目,生产过程包括两部分:用石脑油和水蒸气反应制取氢气,用苯和浓硝酸反应制取硝基苯;以氢气和硝基苯为原料生产苯胺。工程附近有水产养殖科技示范区,位于本项目西北约1km处。东侧有居民区、学校和政府办公楼。本工程昼夜施工,工程安排合理,土石方阶段动用数台推土机、搅拌机、混凝土震动机等噪声较大的机械设备。

施工期噪声环保措施有哪些?

答案

参考答案:

施工期的噪声影响是短期的,项目建成后,施工期噪声的影响也就此结束。但是由于施工机械均为强噪声源,施工期间噪声影响范围较大,可以采取以下措施。(1)合理安排高噪声施工作业的时间,执行《建筑施工场界噪声限值》对不同施工阶段作业要求的噪声限值。(2)工地周围设立围护屏障,同时也可在高噪声设备附近加设可移动的简易隔声屏,尽可能减少设备噪声对环境的影响。(3)加强施工区附近交通管理,避免交通堵塞而增加的车辆鸣号,运输车辆的进出应规定进、出路线,行驶道路保持平坦,减少车辆的颠簸噪声。

单项选择题
阅读理解

阅读表达。

阅读短文, 并按照题目要求用英语回答问题。

     Walking is a great way to get in shape without breaking the bank (it's free and you do it every day).

It benefits people physically, psychologically and socially. Here are how:

    Keeps You in Good Health

     In terms of health, walking is the key to managing weight, controlling blood pressure, and reducing the

risk of a stroke, breast cancer, and many other illnesses. A quick and energetic daily walk lengthens your

life, decreases the risk of disappointment and keeps up your mood and sense of wellbeing.

    Keeps You Mentally Refreshed

    From a psychological viewpoint, walking offers an opportunity to clarify thoughts, to solve problems

and to reduce stress. If you take a walk that is relaxing and peaceful, walking can also become a form of

meditation(冥想).

     Allows for Social Relationship

     Walking regularly with someone else enables a friendship to develop as the pair of you exercise.You

can also schedule regular walk "dates" with your partner and use the time to discuss questions without

being disturbed.

     Lets You See the World Around You

     Also, the best way to explore some of the world's great cities-such as New York, London, Paris and

Rome-is on foot. Walking motivates the senses and enables you to enjoy a rich life around you.

Wordsworth, who is believed to have travelled around the world seven times during his lifetime, always

delighted in the truth that "going for a walk is an invitation for surprise".

    Here are some tips to get going:

    Get a walking partner and meet each week at a set time.

    Get a dog and you'll have a constant walking companion.

    Choose a spot that is charming but accessible.

   Start with a soft walk, then increase the pace and distance.

   Include some hills and stairs.

    Use an umbrella if it rains: the worst that can happen is that you get wet!

1. What is the best title of the passage? (No more than 10 words)

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2. What does the underlined word"schedule"mean? (No more than 5 words)

________________________________________________________________________

3. How does walking keep us mentally healthy? (No more than 20 words)

________________________________________________________________________

4. Why does the author take Wordsworth for an example in the ninth paragraph? (No more than

    30 words)

________________________________________________________________________

5. What is the best way for us  to explore the world's great cities? Why? (No more than 20 words)

________________________________________________________________________