Question: Read the article and select the best answer. Article: Rivers are one of our most important natural resources . Many of the world's great cities are located on rivers, and almost every country has at least one river running through it that plays an important role in the lives of its people. Since the beginning of the history, people have used rivers for transportation . The longest one in the United States is the Mississippi. The lifeline of Egypt is the Nile. To the people of India, the Gangs is great, but it is also important for transportation; Ships can travel along it for a thousand miles. Other great rivers are the Congo in Africa and the Mekong in southeast Asia. The greatest of all for navigation , however, is the Amazon in Brazil. It is so wide and so deep that large ships can go about two thousand miles upon it. Besides transportation, rivers give food, water to drink, water for crops , and chances for fun and entertainment for the people who live along their banks. In order to increase the supply of crops, engineers sometimes build a dam across a river and let a lake from behind the dam. Then people can use the water not only to irrigate their fields but also to make electricity for their homes and industries. However, large cities and industries that are located upon rivers often make problems. As the cities grow in size and industries increase in number, the water in the rivers becomes polluted with chemicals and other materials. People are learning the importance, however, of doing more to keep their rivers clean if they want to enjoy the benefits of this natural resource. Question: The water in the river is polluted because of _ . Options: A: people's drinking water too much B: people's swimming in the river too much C: chemicals and other materials D: people's building a dam across a river
Answer: C

Question: Read the article and select the best answer. Article: Han Dan comes from China, she is a clever and beautiful girl. She studies in a middle school. She has four pen pals. They are from different countries and like different animals. Linda is from America. Her favorite animal is the penguin. The penguin likes ice very much. Lily comes from Australia .The koala is her favorite animal. The koala likes to eat leaves. And it sleeps all day, but it gets up at night. Bob is from India. His favorite animal is the elephant. Grass is the elephant's favorite food. Tom is a Canadian boy. He likes the tiger best. The tiger likes to eat meat. What is Han Dan's favorite animal? It is the panda. Bamboo is panda's favorite. Question: Han Dan likes _ . Options: A: penguins B: koalas C: elephants D: pandas
Answer: D

Question: Read the article and select the best answer. Article: Droughts are common in Kenya . Before ,they came every 10 years ,but now they seem to be hitting us more often and for a longer time . We gave the droughts names :"longoza"was the drought when many animals died ; there was the drought of the "planes" because food was dropped from the air by planes; and one particularly bad drought was called " man who dies with his money in his fist ",because ,even if there was money , there was simply no food to buy . I was born in 1951 in Machakos. From what my mother tells me , when I was 7, there was a serious drought . I clearly remember the terrible weather and the hunger. I can't tell you how many times I went to bed without eating . " I slept like that ," is how we described it . I can't count the number of days when " I slept like that," or describe the feeling of going to sleep hungry ,knowing I'd wake up and there would still be no food for breakfast. My father would leave early in the morning carrying a little basket to ask for food on credit . Each night he would return home around 10:00p.m. My mother would try to encourage me by telling me to keep the water in our pot boiling so that when my father arrived we could quickly cook any food he brought in the already prepared water . I would keep the fire burning and the water boiling , along with the hopes that we would eat that night. But my father would arrive frustrated and empty -handed. And I would sleep like that. Question: The best title for the text is _ . Options: A: A Hungry Childhood Caused by Droughts B: Food and Hunger C: Protecting the Environment D: Droughts and Their Names
Answer:
A