(Q).
Since the first Earth Day started on April 22, 1970, people around the world have been encouraged to protect the environment and natural resources.Gaylord Nelson started this holiday.On the first Earth Day, 20 million people took part in Earth Day events. Earth Day activities can include learning something about technology like cars that are more environmentally friendly and special houses that save energy and water.An organization called the Earth Day Network encourages people to use clean energy which doesn't pollute the environment.Most of our energy comes from fossil fuels that are found underground. Coal, oil and natural gas are examples of fossil fuels.Fossil fuels come from plants and animals that lived millions of years ago. Burning fossil fuels to create energy pollutes the air and water. Many scientists think that burning fossil fuels also increases the temperature of the earth. To reduce the use of fossil fuels. scientists are experimenting with hydrogen-powered cars. These cars don't pollute the air like gas-powered cars. Some scientists guess that by 2025, fossil fuels will run out.When people can no longer use gasoline, they may use fuel cells instead. Fuel cells use hydrogen to create energy. People do not need to worry about hydrogen running out, because it is renewable and replaceable. In Washington, D.C., a few people drive cars that run on fuel cells. When these cars need more energy, drivers can go to a hydrogen pump.The first hydrogen pump for the public opened in November 2004, marking an important step toward a cleaner environment. When do fossil fuels pollute the air? A) When we use them to create gasoline. B) When people get them from the underground. C) After being burned to get energy. D) After getting them from a hydrogen pump.
(A).
C

(Q).
Modern Chinese use the solar calendar as English people do . But at the same time, they use their own lunar calendar. Each lunar year is given the name of one of these animals : the rat , the ox , the tiger , the hare , the dragon , the snake , the horse , the goat , the monkey , the chicken , the dog and the pig . This list lasts for 12 years and then starts again. Each Chinese month starts on the day of the new moon. And the full moon comes on the 15th day of the month. The New Year always starts between January 21 and February 20. On the last day of the lunar year, there is a big family dinner. All members of the family except married daughters try to be present at this meal, even if they have to travel many miles to reach the home of their parents. Old quarrels are forgotten, and everybody is happy. After the dinner, the children keep awake to welcome the New Year. The New Year celebrations last for 15 days, from the new moon to the full moon. On the first day, children and unmarried people go to visit their elder The family usually have their big family dinner at the home of _ . A) the unmarried son B) the unmarried daughter C) the married daughter D) the parents
(A).
D

(Q).
Dear Jenny, I am in Beijing, China now, but my parents are in the USA. I live with my brother Peter. Beijing is big and great. There are many beautiful places and much delicious food here. I like Beijing very much. Peter and I are in the same grade, but we are in different classes. We live far from the school and it takes us a long time to go to school. We have to get up at 6:20 in the morning, and then at 6:30 we ride bikes to the bus stop. It takes us about 20 minutes. At about 7:00, we take the bus to school. We get to school at about 7:30. We have four classes in the morning and two in the afternoon. I think Chinese is too difficult, but Peter thinks it is easy. He can speak Chinese very well and he often helps me with it. How is everything going with you in the USA? Write to me soon. Love, Kate ,. What time does Kate get to the bus stop? A) At about 6:40 B) At about 6:50 C) At about 7:00 D) At about 7:30
(A).
B