问题 单项选择题

塑料垃圾因为难以被自然分解一直令人类感到头疼。近年来,许多易于被自然分解的塑料代用品纷纷问世,这是人类为减少塑料垃圾的一种努力。但是,这种努力几乎没有成效,因为据全球范围内大多数垃圾处理公司统计,近年来,它们每年填埋的垃圾中塑料垃圾的比例,不但没有减少,反而有所增加。
以下哪项如果为真,最能削弱上述论证

A.近年来,由于实行了垃圾分类,越来越多过去被填埋的垃圾被回收利用了。

B.塑料代用品利润很低,生产商缺乏投资的积极性。

C.近年来,原来用塑料包装的商品的品种有了很大的增长,但其中一部分改用塑料代用品包装。

D.上述垃圾处理公司绝大多数属于发达或中等发达国家。

答案

参考答案:A

解析: 如果A项为真,即近年来越来越多过去被填埋的垃圾被回收利用,这说明每年填埋垃圾的总量减少了。因此,虽然填埋的垃圾中塑料垃圾的比例有所增加,但塑料垃圾的绝对数量却可能减少了。因此,不能得出结论:人类为减少塑料垃圾的努力没有成效。这就严重地削弱了题干的论证。

阅读理解

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。

Four Habits t0,Help You Succeed

We all want to succeed,whether it’s in losing weight or learning the guitar.For those who hay e tried and failed,success seems difficult to understand.Why does one person succeed while another person fails?       1   

1.Identify your core values.   

Finding your core values is in line with creating inner motivation.  2     Pick a handful of things and actually write them down.Remind yourself of your values every day,and reflect on whether you are honoring those values through your work.

2.Pick a goal and focus on it.

Choose one goal to start something large enough that will give you a sense of accomplishment,while adjusting well to your core values.Focus is key here.    3     If you perform many tasks at。a time,you might never complete your projects because they will take far too lon9.

3.Set a deadline for success.

Set a date for success.Identify when you hope to achieve your goal.    4     By setting a time limit,you are making the process more real.

4.     5       .Failure can’t be avoided when you take risks, By its very definition,the desire to succeedmeans you are risking failure。Many people tend to give up far too early.Don’t fall into this trap! Remember your mindset earlier.Know it will happen.A failure is merely you working out the details,and learning what works and what doesn’t.Use failure.Treat it as a good thin9,and march on!

A.The more focused you are on one goal,the higher chance you have of Success.

B.Make the right decision.

C.I’ve made a list of four habits to help you set goals and achieve them.

D.Stick to your goal.E.Keep it realistic,while not giving you too mu ch time.

F.Sit and reflect on what you value most.

G.Push yourself to be courageous,and take that next step.

单项选择题 B型题