(Question)
Read the article and select the best answer. Article: Do you know why different animals or pests have their special colours? Colours in them seem to be used mainly to protect themselves. Some birds like eating locusts. but birds cannot easily catch them. Why? It is because locusts change their colours together with the change of the colours of crops. When crops are green, locusts look green. But as the harvest time comes, locusts change to the same brown colour as crops have. Some other pests with different colours from plants are easily found and eaten by others. So they have to hide themselves for lives and appear only at night. If you study the animal life, you'll find the main use of colouring is protecting themselves. Bears, lions and other animals move quietly through forests. They cannot be seen by hunters. This is because they have the colours much like the tree. Have you ever noticed an even more strange act? A kind of fish in the sea can send out a kind of very black liquid when it faces danger. While the liquid spread over, the enemies cannot find it. And it immediately swims away. So it has lived up to now though it isn't strong at all. Question: From the passage we learn that locusts _ . Options: A: are small animals B: are easily found by birds C: are dangerous to their enemies D: change their colours to protect themselves
(Answer)
D

(Question)
Read the article and select the best answer. Article: Tears are nature's way of making us feel more comfortable. When our eyes is made uncomfortable by some small pieces of pollution, or when we are cutting onions, or when we are exhausted and "red-eyes" from over work and late hours, tears form in our eyes to clean and refresh them. Tears are also a sign of strong emotion . We cry when we are sad and we cry when we are happy. And tears seem to be uniquely human. We know that animals also experience emotion fear, pleasure, loneliness, but they do not shed tears. Biologically speaking, tears are actually drops of saline fluid, which is a little bit salty, produced by a gland in the body. Because salt is an important component, tears may actually constitute the most conclusive evidence that the human animal is the end product of a long evolutionary process that began in the sea. And it is clear that, in addition to the emotional benefits, the shedding of tears has a specific biological function as well. Through tears, we can eliminate from our body certain chemicals which build up in response to stress and create a chemical imbalance in the body. Crying actually makes us feel better by correcting that imbalance and making us feel good again. And thus the emotional and the biological functions of tears merge into one and make us even more "human" than we would otherwise be. Question: According to the article, which of the following is unique to humans? Options: A: The feeling of loneliness. B: The state of feeling good. C: The ability to shed tears. D: The feeling of fear.
(Answer)
C

(Question)
Read the article and select the best answer. Article: It was a cold night in Washington, D.C., and I was heading back to the hotel when a man approached me. He asked if I would give him some money so he could get something to eat. I'd read the signs: "Don't give money to beggars as most of them are _ ." So I shook my head and kept walking. I wasn't prepared for a reply, but with no hesitation, he followed me and said, "I really am homeless and I really am hungry! You can come with me and watch me eat!" But I kept on walking. The incident kept bothering me for the rest of the week. I had money in my pocket and it wouldn't have killed me to hand over a dollar or two even if he hadn't been a real beggar. On a freezing cold night, no less, I assumed the worst of a fellow human being. Flying back to Anchorage, I couldn't help thinking of him. I tried to reason my failure to help by supposing government agencies, churches and charities were there to feed him. Besides, you're not supposed to give money to beggars. Somewhere over Seattle, I started to write my weekly garden column for The Anchorage Daily News. Out of the blue, I came up with an idea. Bean's Cafe, a local charity service kitchen, feeds hundreds of hungry local people every day. Why not try to get all my readers to plant one row of vegetables or flowers in their gardens for Bean's? Plant a row for Bean's. It's clean and simple. We didn't keep records back then, but the idea began to take off. Folks would fax me or call when they took something in. It's food for the spirit and comfort for my conscience. In April 1995, the Garden Writers Association of America(GWAA) held their annual meeting in Anchorage and after learning our program, Plant a Row for Bean's became Plant a Row For The Hungry. The idea then was to have every member write or talk about planting a row for the hungry, which brought the program to national attention. As more and more people participated, new variations cropped up. Many companies gave free seeds to customers and displayed the logo for the program. Donations poured in. It was... Question: Why did the author think he assumed the worst of a fellow human being? Options: A: Because he didn't show fair respect to a beggar treating him badly. B: Because he could have helped a hungry man but he passed by. C: Because he believed that no people begged because of real hunger. D: Because he thought that charity work was the government's duty.
(Answer)
B