There's a whole lot of things that people fill their stomachs with. Some of them keep people alive. Some of them taste good to people. Some of them help people win pie-eating contests. Alcohol does none of these things. Why do people keep drinking it? And what does it do once it gets to their stomachs? There are all kinds of alcohol molecules , but the one that people most often pour down their throat is ethanol . Ethanol is very tiny and it dissolves in water, so it gets into all sorts of places that it's not supposed to. Alcohol heads for the digestive system. Because it dissolves in water, it can get into the water in the bloodstream. Because ethanol, to a certain extent, can pass through cell membranes . It can go almost anywhere. It spreads through the muscles, and is sweated -- unmetabolized and whole -- through the skin. It gets into the heart. It even takes a walk through the brain, and this is the secret of its powers. Alcohol depresses the nerves, and the nerves affect almost every area of the body. Enough alcohol makes people sleep, so people who become unconscious choke on their own vomit . Most worryingly, enough alcohol can shut down those parts of the brain just like any other parts. People become unconscious and their brains simply forget to breathe. Alcohol is broken down in the liver. Alcohol doesn't destroy the liver, but products that the liver breaks the alcohol into do cause damage. A glass of wine per day can not do any harm. Instead, it can prevent heart attacks or can make someone functionally young. And it is kind of nice to know that sometimes, relaxation and cheer can be bottled. All that's needed is to take care how much alcohol is let into a person's brain. Why can alcohol reach the brain? A) Because it can move through water molecules in the blood. B) Because it is small enough to get through any narrow space. C) Because it is so light that the bloodstream can transport. D) Because it is absorbed only by the cells in the stomach.
A
A store that sells husbands has just opened in Ottawa where a woman may go to choose a husband from many men. The store is comprised of 6 floors and the men increase in positive attributes(,)as the shopper goes up the flights. There is, however, a catch . As you open the door to any floor you may choose a man from that floor, but if you go up a floor, you cannot go back down except to exit the building. So a woman goes to the shopping center to find a husband. On the first floor the sign on the door reads: Floor 1--These men have jobs. The woman reads the sign and says to herself, "Well, that's better than my last boyfriend, but I wonder what's further up?" So up she goes. The second floor sign reads: Floor 2--These men have jobs and love kids. The woman remarks to herself, "That's great, but I wonder what's further up?" And up she goes again. The third floor sign reads: Floor 3--These men have jobs, love kids and are extremely good-looking. "Hmm, better." The fourth floor sign reads: Floor 4--These men have jobs, love kids, are extremely good-looking and help with the housework. "Wow!" exclaims the woman, "Very tempting. But, there must be more, further up!" And again she heads up another flight. The fifth floor sign reads: Floor 5--These men have jobs, love kids, are extremely good-looking, help with the housework and have a strong romantic character. "Oh, mercy me! But just think...what must be awaiting me further on?" So up to the sixth floor she goes. The sixth floor sign reads: Floor 6 -You are visitor 3, 456, 789,012 to this floor. There are no men on this floor. Thank you for shopping Husband Mart and have a nice day. Women tend to go up the floor until they reach the top floor because _ . A) they think the husbands downstairs are not suitable B) they are sure that the best husbands are on the top floor C) they know the catch very well D) they think even better husbands may be upstairs
D
(Q).
This week in our Foreign Student Series,we discuss rules about getting a job while studying in the United States. International students are permitted to work for the college or university they attend or for a business at the school.But the business must directly provide a service to students.You could work at the bookstore,for example,but not for a construction company that is building something on campus .Also,a foreign student cannot displace an American citizen in a job.International students can work twenty hours a week while attending classes;more during school breaks.You can work until you complete your studies. Foreign students normally cannot take a job that has no connection to their school.But the government may give permission if students are suddenly faced with a situation that is out of their control.Examples include large medical bills. The loss of financial aid or an unexpected change in the financial condition of their source of support.Students must also meet other conditions.They must have attended their American school for at least one year.Government approval is given on a case-by-case basis.Students must re-apply after a year if they want to continue all off-campus job. Foreign students who will be attending graduate school can apply for some jobs before they come to the United States.A good example is a university job like a teaching or research assistantship.Some schools pay their assistants.Others provide free education in return. Many do both.Graduate assistants might teach, give tests,grade work, assist professors with research and hold office hours.Many universities now provide language training to foreign teaching assistants to help them improve their English.Some schools require foreign students to pass an English speaking test before they arc permitted to teach. International student offices at schools have to provide information on students each term to the Department of Homeland Security.Students who violate the terms of their visa--for example, By working off-campus without... In general, the international students are permitted to_. A) work in a bookstore near the college campus B) work for three years altogether at most C) work for 20 hours a weak during school days D) take the place of an American citizen for a certain job
(A).
C