Waste can be seen everywhere at school. Some students ask for more food _______ they can eat and others often forget _______ the light when they leave the classroom.

Waste can _______ a lot of problems. Although China is rich in some resources (资源), we are short (缺少) for others, for example, fresh water. It is said that we _______ no coal or oil to use in 100 years. So if we go on _______ our resources (资源), what can we use in the future? Think _______ it.

In our daily life, we can do many things to stop waste, for example, turn off the water taps when we finish _______ it, try not to throw too _______ rubbish, and so on. Little by little, _______ will be changed. Waste can stopped one day if we do ________ best. I hope we can.

The Eskimos (爱斯基摩人) live near the North Pole. There are only two seasons near the North Pole: winter and summer. In winter, the nights are long. For more than two months, you can’t see the sun. In summer, the days are long. For more than two months, the sun is always in the sky, and there is no night. The Eskimos have warm clothes. They make clothes from the skin of animals.

The weather is cold. There are no trees. The Eskimos have to build their houses from snow when they are out and can’t get back home. Life is hard for the Eskimos.

Students aiming to enter Tsinghua University this year had better be able to swim or be prepared to learn swimming and pass a swim test since the top university will not grant bachelor’s degrees if they cannot swim.

This September, would-be freshmen at Tsinghua University will have to take swimming courses if they fail a swimming test at the beginning of their university life, and they won’t receive their degrees if they cannot swim before their graduation, according to a message at a university staff meeting days ago, the Beijing Daily reported on Monday.

Potential freshmen with chronic diseases, skin disease or hydrophobia, once examined and affirmed by medical staff, don’t need to take the required test or course.

Plans are for freshmen to take the test during their military training. In the test, students will pass the test if they can swim 50 meters, no matter whether they choose the breaststroke, butterfly, stroke, freestyle or backstroke. Those failing the test have to take a compulsory swimming course.

“Now Tsinghua University will test students in long-distance running and swimming, so students with poor sports performance will have to overcome a lot of difficulties once they enter the university,” said a student surnamed Zhang from the Second High School Attached To Beijing Normal University.

However, students don’t need to worry much, since Liu Bo, head of the Division of Sports Science and Physical Education, said relevant statistics showed that 90 percent of students can swim after taking the compulsory swimming course in their second year of university, and the remaining 10 percent will receive instruction after class provided by teachers, without paying extra tuition.

And seeing the ability to swim as a must for students to earn their degrees is not something new in Tsinghua University, as this ability was listed on its school regulations in the early 20th century.

“As early as 90 years ago, Tsinghua University required that students cannot graduate from the university or study overseas if they cannot swim, though the requirement didn’t work later on since the swimming pools at the campus could not accommodate increasingly more students” said Liu.