题型:阅读理解 题类:常考题 难易度:普通
河北省石家庄辛集中学2016-2017学年高二上学期英语11月月考试卷
It is a tall tale(夸张的故事)that terrifies most young children. Swallow a piece of chewing gum and it will remain in your body for seven years before it is digested. An even worse tale is that swallowed(吞) gum can wrap itself around your heart.
But what does happen if you should accidentally eat a stick of gum? Chewing gum is made out of gum base, sweeteners, coloring and flavoring. The gum base is pretty indigestible(难消化的)—it is a mixture of different ingredients (成分) that our body can't absorb.
Most of the time, your stomach really cannot break down the gum the way it would break down other foods. However, your digestive system has another way to deal with things you swallow. After all, we eat lots of things that we are unable to fully digest. They keep moving along until they make it all the way through the gut (肠子) and come out at the other end one or two days later.
The saliva (唾液) in our mouths will make an attempt at digesting chewing gum as soon as we put it in our mouths. It might get through the shell(壳) but many of gum's base ingredients are indigestible. It's then down to our stomach muscles—which contract(收缩) and relax, much like the way an earthworm moves—to slowly force the things that we swallow through our systems.
Swallowing a huge piece of gum or swallowing many small pieces of gum in a short time can cause a blockage within the digestive system, most often in children, who have a thinner digestive tube than adults—but this is extremely rare.
The Healthy Habits Survey shows that only about one third of American seniors have correct habits . Here are some findings and expert advice.
1). How many times did you brush your teeth yesterday? ·Finding: A full 33% of seniors brush their teeth only once a day. ·Step: Remove the 300 types of bacteria in your mouth each morning with a battery-operated toothbrush. Brush gently for 2 minutes, at least twice a day. 2). How many times did you wash your hands or bathe yesterday? ·Finding: Seniors, on average, bathe fewer than 3 days a week. And nearly 30% wash their hands only 4 times a day—half of the number doctors recommend. ·Step: We touch our faces around 3,000 times a day—often inviting germs(病菌)to enter our mouth, nose, and eyes. Use toilet paper to avoid touching the door handle. And, most important, wash your hands often with hot running water and soap for 20 seconds. 3). How often do you think about fighting germs? · Finding: Seniors are not fighting germs as well as they should. · Step: Be aware of germs. Do you know it is not your toilet but your kitchen sponge(海绵)that can carry more germs than anything else? To kill these germs, keep your sponge in the microwave for 10 seconds. |
Memorandum(备忘录) To: Members of all departments From: Annette Derringer Subject: Year-end party Date: November 26 |
This is just a quick note to let you all know the arrangements for next month's year-end party. As you know, the party will be held at the Green Vale Country Club, which we have reserved between 6:00 pm and 10:00 pm on the evening of December 21st. 1 have received replies from almost all of you confirming attendance, but if you have not let me know yet, please do so in the next day or two. Tickets for all employees have been covered by the company. The manager of Green Vale has asked me to explain one or two things to those of you who have not been there before. Basically, there is enough parking space for only 100 vehicles, so he would like to ask those of you planning to drive to try car pool(拼车)as much as possible. Also, the number of lockers available is small, so guests should try to keep belongings to a ,minimum. Thanks in advance, Annette |
To: Annette Derringer aderringer@belway.com From: Kype Berwick Subject: Year-end party Date: November 28 |
Annette, I will be able to attend the year-end party at the Green Vale Country Club on December 21st although I do not think I will be able to arrive before 7:30. I was wondering if it would also be possible to bring a couple of guests. I know it is a bit of a last-minute request, but my brother and his wife are planning to visit us at that time, and they would love to see the Green Vale. If it is not a problem, then could you let me know how much I should pay for their tickets? Also, assuming this is OK, we are planning to drive down in a single car to reduce the need for paring and also to allow us to keep our belongings in the ear. I will have a couple of days off before the party, and I will not be in my office December 17th, so could you get back to me before then? Thanks a lot, Kyle |
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