【題目】Blowing bubbles is fun! The best thing about bubbles is that it's easy to make your own bubble solution(溶液). You can make as much as you want and blow as many bubbles as you'd like. If you add a "secret" ingredient(配料), you'll get bigger and stronger bubbles! Do just as follows:

Measure 6 cups of water into one container, then pour 1 cup of dish soap into the water and slowly stir it until the soap is mixed in. Try not to let bubbles form while you stir.

Measure 1 tablespoon of glycerin(甘油) or 1/4 cup of corn syrup（玉米淀粉） and add it to the container. Stir the solution until it is mixed together.

You can use the solution right away, but to make even better bubbles, put the lid on the container and let your super bubble solution sit overnight.The soap mixture on the outside of a bubble is actually made of three very thin layers: soap, water, and another layer of soap. A bubble pops when the water that is trapped between the layers of soap evaporates(蒸發(fā)). The glycerin or corn syrup mixes with the soap to make it thicker.The thicker skin of the bubbles keeps the water from evaporating as quickly, so they last longer. It also makes them stronger, so you can blow bigger bubbles.

Dip a bubble wand or straw into the mixture, slowly pull it out, wait a few seconds, and then blow. If you don't have a ready-made "bubble wand", you can make your own by cutting off the end of the bulb of aplastic pipet. Dip the cut end in solution and blow through the narrow end. You can also make a loop out of thin wire or pipe cleaner.Just twist a round end on your wire to blow the bubbles through. You can even make it heart-shaped, square or use other shapes if you're clever enough to bend it well.

【1】For what purpose is the text is written?

A. To argue. B. To advertise.

C. To entertain. D. To instruct.

【2】What does the secret in making bigger and stronger bubbles lies in?

A. The soap. B. The corn syrup.

C. The water. D. The straw.

【3】What can you use a bubble wand to do?

A. Blow bubbles. B. Mix the solution.

C. Measure soap. D. Shape wires.

【4】What can we infer from paragraph 4?

A. More soap, more bubbles.

B. Less water, better bubbles.

C. Thicker layers, bigger bubbles.

D. Stronger skin, bigger bubbles.

【答案】

【1】D

【2】B

【3】A

【4】D

【解析】文章主要講述了如何使泡泡變得更強(qiáng)大。

【1】寫(xiě)作意圖題。文章主要講述了如何使泡泡變得更強(qiáng)大，可知這篇文章主要是指導(dǎo)人們?nèi)绾稳ゲ僮鳌８鶕?jù)題意，故選D。

【2】細(xì)節(jié)理解題。根據(jù) “The glycerin or corn syrup mixes with the soap to make it thicker. The thicker skin of the bubbles keeps the water from evaporating as quickly, so they last longer. It also makes them stronger, so you can blow bigger bubbles.” 甘油或玉米糖漿與肥皂混合使其變稠。泡沫表面越厚，水就越不易揮發(fā)，所以它們持續(xù)時(shí)間更長(zhǎng)。它也使它們更強(qiáng)大，所以你可以吹大的泡泡。可知甘油或玉米糖漿可是泡泡變得更強(qiáng)大。根據(jù)題意，故選B。

【3】細(xì)節(jié)理解題。根據(jù)“Dip a bubble wand or straw into the mixture, slowly pull it out, wait a few seconds, and then blow.” 將泡沫棒或吸管浸泡在混合物中，慢慢拉出，等待幾秒鐘，然后吹氣。根據(jù)題意，故選A。

【4】推理判斷題。根據(jù)文章第三段甘油或玉米糖漿與肥皂混合使其變稠。泡沫表面越厚，水就越不易揮發(fā)，所以它們持續(xù)時(shí)間更長(zhǎng)。它也使它們更強(qiáng)大，所以你可以吹大的泡泡。可知第三段主要講述了泡沫表面越厚，泡泡更強(qiáng)大。根據(jù)題意，故選D。

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