Question

根據(jù)短文內(nèi)容，從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。
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蒸發(fā)）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

小題1:G
小題2:E
小題3:D
小題4:F
小題5:B

試題分析：
小題1:從前面的句子：once it's in there，you can't get it out.”可知科學(xué)家正做實(shí)驗(yàn)把鹽從海水里取出來。選G
小題2:從前面的句子：Start by helping your child to mix salt into the water in the mixing bowl and stirring until it is fully dissolved溶解）．可知是在這個(gè)碗里放一個(gè)小碗。選E。
小題3:從后面的句子：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來，封住邊緣。選D
小題4:從前面的句子：Within an hour, you should see water droplets begin to form on the underside of the plastic.可知慢慢的干凈的水就進(jìn)入杯子。選F
小題5:從后面的句子：Guess what? No salt！可知是讓孩子和你一起品嘗。選B
點(diǎn)評：在答題中，應(yīng)首先略讀一下短文，了解一下短文的大致意思，然后把幾個(gè)選項(xiàng)含義理解透，尤其注意意思相近，表達(dá)有交叉的選項(xiàng)之間的區(qū)別。然后再細(xì)讀短文，把答案填入合適位置。答題時(shí)可以把含義相近的幾個(gè)選項(xiàng)輪流填入同一處位置，反復(fù)閱讀，反復(fù)體會(huì)，找出最佳選項(xiàng)，對于實(shí)在沒有把握的小題可以留待最后完成。完成短文后，再認(rèn)真通讀一遍全文，看看上下語意是否通順，是否符合邏輯關(guān)系。