题型：阅读理解 题类：常考题 难易度：普通
河北省石家庄一中2018届高三上册英语第一次质检试卷
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(蒸发). 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 a plastic 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.
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