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问题 选择题

为研究植物a能不能移植到b地生长，某生物学研究性学习小组设计了一个测定植物a细胞液浓度的实验方案，实验结果如下表：

他们又测定了b地土壤溶液浓度，发现b地的土壤溶液的浓度适合植物a生长，则b地土壤溶液的浓度最可能是 [ ]

A．≥0.2

B．0.15＜土壤溶液＜0.3

C．＜0.2

D．≤0.2

答案

答案：C

听力题

Is a Training Class or Family Teacher Necessary?

More and more middle school students are going to all kinds of training c   1   or having family teachers at the w   2  . There are two different viewpoints (观点) about it.

Some think it is necessary. First of all, it’s more effective to study with a teacher

t   3   by students themselves. Secondly, it can strengthen (加强) what is l   4    in class. Besides, they can learn a lot more. Others think it is u   5  . For one thing, students can easily form the habit of dependence(依赖). For a   6  , students need to r   7   from time to time. What’s m   8  , the purpose of many training classes and family teachers is to make money.

In my opinion, w   9  a training class or family teacher is needed just depends on yourself. If you are really very weak at or interested in a certain subject, maybe it’s OK for you. But be sure to choose a good and suitable class or family teacher, or it would be a w   10   of time and money.
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选择题
读图：与下图有关的历史事件是

 

陈独秀

李大钊

新青年

[ ]
A、戊戌变法

B、清末新政

C、辛亥革命

D、新文化运动

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