Paragraph 1 Scientists have learned a lot about the kinds of food people need. They say that there are several kinds of food that people should eat every day. They are: (1) green and yellow vegetables of all kinds. (2) citrus fruits and tomatoes; (3) potatoes and other fruits and vegetables; (4) meat of all kinds, fish and eggs; (5) milk and foods made from milk; (6) bread or cereal , rice is also in this kind of food; (7) butter, or something like butter. Paragraph 2 People in different countries and different places of the world eat different kinds of things. Foods are cooked and eaten in many different kinds of ways. People in different countries eat at different times of the day. In some places people eat once or twice a day; in other countries people eat three or four times a day. Scientists say that none of the differences is really important. It doesn't matter whether foods are eaten raw or cooked, canned or frozen. It doesn't matter if a person eats dinner at 4 o'clock in the afternoon or at eleven o'clock at night. The important thing is what you eat every day. Paragraph 3 There are two problems, then, in feeding the large number of people on earth. The first is to find some ways to feed the world's population so that no one is hungry. The second is to make sure that people everywhere have the right kinds of food to make them grow to be strong and healthy. It is important for people to eat _ . A) three times a day B) dinner at the right time C) cooked food all the day D) something from each of the seven kinds of food every day
D
(Question)
Leon, 12, was born without fingers on his left hand.That didn't -stop him from being able to do many tasks. But Leon could not grasp more than one object at a time. So Leon's father, Paul, created a prosthesis ,using a 3D printer. Now Leon has fingers that open and close."It was a do-it-yourself, father and son adventure," says raw. When Leon was a baby, his doctor advised his parents not to give him a prosthetic hand until he was in his early teens. "The doctor said Leon should first learn to get full use out of the hand he was born with," says Paul. As Leon got older, his father looked into buying a prosthetic hand, which can cost as much as $30,000. Paul found a more affordable solution. One day, Paul discovered a video on the Internet about Robohand, a prosthesis created with a 3Dprinter. He downloaded the free instructions and called Robohand's creators for advice. They told him all he needed was a 3D printerwhich costs around $2,000- and some materials. Luckily, Leon's school had recently purchased a 3D printer and it offered to help Paul build the hand for Leon."We used a soccer shin guard ,cardboard, and tape. They cost about$10," says Paul. With his new hand, Leon can do things better. "I can help my mom more, because now I can carry two grocery bags,"he says. Leon's father has already built .several hands for Leon. Leon helps design each one. He says there's one thing in particular that he wants to do with a future prosthesis."The goal," he tells the reporter from the local evening paper,"is to be able to tie my shoelaces:' The materials used for Leon's hand can be described as A) cheap and common B) strange and valuable C) personal and lovely D) basic and solid
(Answer)
A
Ques: External bleeding Apply direct pressure. Place a clean, folded cloth over the injured area and firmly apply pressure. If blood soaks through, do not remove it. Instead, cover that cloth with another one and continue to apply pressure to the wound for 7~10 minutes. If the bleeding is from the ear, place a clean bandage over the ear, lay the victim on his side, and allow the blood to drain out through the bandage. Elevate the injury. Position the wounded part of the body above the level of the heart if possible while you apply direct pressure. Know the pressure points. If direct pressure and elevation don't sufficiently slow the blood-flow, find a pressure point. Large arteries found close to the skin's surface supply blood to the head and to each arm and leg. The most common pressure points used during the first aid are located in the upper arms and in the creases above the upper legs. Apply pressure to the closest pressure point to the wound so that the artery is pressed between your fingers and the bone directly behind the artery. If using the pressure point on a leg, you may need to use the heel of your hand instead of your finger. Resort to a tourniquet (,). On very rare occasions everything listed above may fail. To prevent the victim from dying, you should apply a tourniquet. Once a tourniquet is applied, it should not be loosened or removed until the victim has reached medical help. Use a tourniquet ONLY if everything listed above has failed. If you use a tourniquet, write down somewhere on the victim the time when it was applied, so medical personal will know how long it has been in place. According to the passage, we know that _ . A) it is better to put the injured part above the head to stop bleeding B) large arteries deep in the muscle supply blood to the head and to each arm and leg C) the most common pressure points lie in the upper arms and in the crease above the upper legs D) we should use a tourniquet first to stop bleeding
Ans: C
Ques: Tigers are among the most admired and most feared animals in the world . When we think of a tiger, we think of danger. We think of the big teeth and large feet of it. We also think of beauty. The tiger is a hunter that hunts alone. In fact , tigers are probably better than any other land mammal at catching large animals without help. Even so, the life of this big-game hunter isn't easy. Finding food can be difficult, especially for a tiger that is old or weak. Most of the animals it tries to attack get away. A tiger sometimes goes weeks without eating. When that happens, it may hunt animals that can be dangerous even for a tiger. When they are in a bad situation, some tigers may even attack humans. But in fact, tigers kill very few people each year. Most tigers run away when they see people. What tigers have done to people can't compare to what people have done to tigers. Over the last 200 years, we have almost killed tigers in the wild . Today, the tiger is one of the most endangered animals on Earth. A tiger may live 20 years or more, if it is not disturbed by humans. Female tigers usually live longer than male tigers, because the males live more dangerously. It isn't easy for people to tell a male from a female unless the female happens to be with her babies.Only females take care of the young. The big difference between males and females is size. Male tigers are much bigger. Tigers are big eaters. In a single year, one tiger must eat about 70 deer or other large animals. That is one reason why tigers hunt alone. If they lived in big groups, they could never find enough animals to feed them all. The easiest way to tell a male tiger from a female one is by looking at their _ A) size B) running speed C) way of hunting D) claws
Ans:
A