Question

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。

There's an old saying, “You can put more salt in the soup，but once it's in there，you can't get it out.”__1__ And your child can help！Here's an exciting experiment for your child to try：

Start by helping your child to mix salt into the water in the mixing bowl and stirring until it is fully dissolved溶解）．

___2__ Make sure that you don't let any of the salty water into it.

___3__ Then take a small rock，and place it right on top of the center of the plastic wrap，so that all of the plastic leans slightly toward the middle of the bowl where the cup is.

Put the whole setup in full，hot sun，and wait. Within an hour, you should see water droplets begin to form on the underside of the plastic. __4___

Wait, and then take the plastic off. A good amount of water should be in the small cup.

__5__ Guess what? No salt！The water vaporized蒸发）in the heat of the sun，and then returned to its liquid state. Salt doesn't do that一it stayed behind. You really can take the salt out of salt water！

As it happens，this is an excellent lesson in the way matter can change states.

A．Fresh water is scarcer than ever.

B．Invite your child to taste with you.

C．Water can go from liquid to gas and to liquid again.

D．Cover the bowl with plastic wrap and seal the edges.

E．Then place a cup or a smaller bowl into the center of the bowl.

F．They'll flow and drip into the center of the bowl，and into the cup.

G.．Today, scientists are busy exploring ways to take the salt out of salt water in large quantities.

 

Answer 1

【答案】

 G

 E

 D

 F

 B

【解析】

试题分析：

 从前面的句子：once it's in there，you can't get it out.”可知科学家正做实验把盐从海水里取出来。选G

 从前面的句子：Start by helping your child to mix salt into the water in the mixing bowl and stirring until it is fully dissolved溶解）．可知是在这个碗里放一个小碗。选E。

 从后面的句子：Then take a small rock，and place it right on top of the center of the plastic wrap，可知是用塑料把碗包裹起来，封住边缘。选D

 从前面的句子：Within an hour, you should see water droplets begin to form on the underside of the plastic.可知慢慢的干净的水就进入杯子。选F

 从后面的句子：Guess what? No salt！可知是让孩子和你一起品尝。选B

考点：考查信息匹配

点评：在答题中，应首先略读一下短文，了解一下短文的大致意思，然后把几个选项含义理解透，尤其注意意思相近，表达有交叉的选项之间的区别。然后再细读短文，把答案填入合适位置。答题时可以把含义相近的几个选项轮流填入同一处位置，反复阅读，反复体会，找出最佳选项，对于实在没有把握的小题可以留待最后完成。完成短文后，再认真通读一遍全文，看看上下语意是否通顺，是否符合逻辑关系。