Read the article and select the best answer. Article: A recent survey of 2000 parents in Britain showed that they are often afraid of science questions asked by their curious children only because they have no idea what the answer is. Here is a list of some simple questions that you can ask your parents to see if they know the answers. Q: Why is the sky blue? A: You probably know white sunlight is made up of seven colors. While it moves in a straight line when going through space, it starts to divide as it hits "raised area" in the atmosphere. The ones with longest wavelengths pass through easily. The blue , however , can be taken in by the gas molecules because it has a shorter wavelength , which in turn scatters it in different directions. That's why when you look up at the sky, it appears to be blue. Q:Why does the moon sometimes appear during the daytime? A: The simple answer to that is because just like any other object it is being lit by the sun. As long as it is around 45 degrees or even 90 degrees off the sun, it will receive light and be able to be seen. The only time it is not able to be seen during its 28-day orbit around the earth is when it is right between the earth and the sun. That's because its back , which is not lit by the sun, is facing us. Q: Where do birds/ honeybees go in winter? A: While the bird part is quite easy, since a lot of them get together and travel, the honeybee part is likely to puzzle your parents. It turns out that these busy insects stop being that active when the temperature drops below 50degF. Instead ,they get together in the lower central area of the hive and form a ball around their queen. This helps keep both warm enough to survive the cold winter months. Question: The sky looks blue mainly because the color blue in the sunlight _ . Options: A: has the longest wavelength among all the colors B: cannot be taken in by the gas molecules C: doesn't hit "raised area" in the atmosphere D: cannot pass through space successfully
D

Read the article and select the best answer. Article: There is a park near our school. We can see many trees and flowers there. We can see a hill behind the park, too. At the foot of the hill we can see a river. There are some boats on it. It is Sunday today. There are many Young Pioneers in the park. Some are walking and singing. Some are dancing or playing games. Ann and her sister Kate are flying a kite. Tom and his brother Sam are throwing a frisbee . Their parents are sitting under a tree. All the family are having a good time. Question: What are Ann and Kate doing? Options: A: Singing B: Flying a kite C: Working D: Throwing a frisbee
B

Q: Read the article and select the best answer. Article: Jack was born in a poor family. His father had a small boat and went fishing in the morning and sold the fish in the market in the afternoon. Then he bought some food for his family. When winter came, they were often hungry. One morning the hungry man fell into the river and nobody found him. Jack's mother left her three-year-old son without saying goodbye. His aunt had to look after him. Twenty years passed. Jack became a tall, strong man. He worked on a farm. He worked hard and wanted to get more money to marry . He often went to see his aunt with some nice presents. The woman was very happy. But one day she died in a traffic accident . The young man was very sad. After he buried her, he decided to buy a beautiful tombstone for her. He went to the town and came into a shop, but all the tombstones were too expensive. He asked, "Do you sell an old tombstone, sir?" "Yes, we do, sir," answered the shopkeeper. "Is it as expensive as the new one?" "No, it is much cheaper," said the man. "But another name was engraved on it." "It doesn't matter," said the man. "My aunt could not read." Question: As _ , the family were hungry. Options: A: Jack's father had to look after him in winter B: Jack's father could catch little fish in winter C: no food was sold in winter D: Jack's father was often ill in winter
A: B

Question: Read the article and select the best answer. Article: Running is becoming popular these days. Many of us run for health. Doctors say many health problems come from these bad habits: eating and drinking too much, smoking and not taking enough exercise. Doctors tell us. "Eat and drink less, don't smoke, and exercise more." Running is a good way of exercise because it helps to build a strong heart. It also helps most people lose weight. One 68-year-old woman runs three times a week. "I love to eat." She says. She runs to lose _ Running is good for health in other ways, too. Many runners say running keeps colds and other small health problems away. "Running is my doctor." says one man. Running can also help people to relax. So today men and women of all ages enjoy running. Question: Doctors tell us _ . Options: A: not to smoke B: not exercise C: to drink much D: to eat much
Answer: A

*Question*
Read the article and select the best answer. Article: Hello , boys and girls ! I'm Anna Green . Look ! This is my bedroom . The wall is white . And this is my bed . B-E-D , bed . It's green . What's this on the bed ? It is a quilt . It's a yellow quilt . And that's a jacket . It's green , too . What are those on the sofa ? They are my books . Oh , what's this on the wall ? It's a map of China . What color is it ? It is green . Oh , no . It's yellow . No , it's blue , yellow and brown . I like my bedroom very much . Question: _ is on the wall . Options: A: The quilt B: The map C: The bed D: The jacket
**Answer**
B

*Question*
Read the article and select the best answer. Article: The world is not hungry, but it is thirsty. It seems strange that nearly 3/4 of the earth is covered with water while we say we are short of water. Why? Because about 97% of water on the earth is sea water which we can't drink or use for watering plants directly. Man can only drink and use the 3%--- the water that comes from rivers and lakes. And we can't even use all of that, because some of it has been polluted. Now more water is needed. The problem is: Can we avoid a serious water shortage later on? First we should all learn how to save water. Secondly, we should find out the ways to _ it. Scientists have always been making studies in the field. Today, in most large cities water is used only once and then runs to the sea or rivers. But it can be used again. Even if every large city reused its water, still there would not be enough. What could people turn to next? The sea seems to have the best answer. There is a lot of water in the sea. All that needs to be done is to get the salt out of the sea water. This is expensive, but it's already used in many parts of the world. Scientists are trying to find a cheaper way of doing it. So you see, if we can find a way out, we'll be in no danger of drying up. ,,. Question: From the passage we learn _ . Options: A: if every city reused its water, we'll be in no danger of drying up B: man can only drink and use about 25% of water on the earth C: today in most large cities water is used only once D: water can be used only once
**Answer**
C