某镇有座硫酸厂，设备简陋，技术陈旧，该厂每天排放大量含SO2的废气和含H2SO4的酸性废水。当地的其他工厂和居民均用煤炭作燃料。只要下雨就下酸雨，对该镇环境造成极大破坏。
（1）分析该镇下酸雨的原因：
（2）举一例说明酸雨对环境造成的危害：
（3）该镇某中学环保小组提出了治理酸雨的下列措施，你认为其中不妥的是
A．将硫酸厂搬离该镇 B．建议环保部门限令整改
C．将硫酸厂排出的废气中的SO2处理后排放 D．工厂和居民改用较清洁的燃料
（1）排放二氧化硫废气、用煤作燃料
（2）酸化土壤、腐蚀、破坏森林植物、腐蚀建筑物（答出一点即可）
（3）A
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 Being a good student doesn’t mean you have to drop all social activities and dive in your books. It is still possible to have a healthy social life while getting good grades. __1___ Here’s how you can achieve it: 1. Decide for yourself at the start of the term that you won’t let your schoolwork sweep you away. ___2__ 2. Write down your weekly schedule on a piece of paper. Chances are，you’ll have small gaps between classes during the week and more free time at the weekend. Make sure that every time you find yourself in one of those between-class gaps you use the time efficiently.___3__ 3. Set aside at least one large amount of time each week as free time. Keep in mind the law of diminishing returns (收益递减). Past a certain point, more hours of studying will be of little benefit. __4__ Protect both your free time and your school time carefully. If one starts to infringe (入侵)on the other, that is just the beginning of a long, slippery downhill slope. 4. __5__ This way, you can co-ordinate(协调) your free time with theirs. 5. Whenever possible, find social activities that take you off campus and away from your schoolwork.
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