There is no excuse for not doing yourassignments . If you can't come to school, you should call your teacher or your classmate and ask about homework. It is yourresponsibility to find out what homework you have missed. It is not the teacher's job to remind you of the missed assignments. You must not be absent on a test day. If you are seriously ill, call and let the teacher know you will not be there for the test. If your teacher allows amake-up test ,you should take the test within one or two days after you return to class. Serious illness is the only reason for missing a test. Be on time! It is impolite to be late. Also, it bothers other students. If you must come in late, be sure to do it quietly. Have your books and papers out of your bag before you come into the room. Then go to your seat and sit down quietly. In the USA, it is not necessary to knock before you enter the classroom. Most teachers will give you a low grade if you are often late. In America, you should call your teacher by his or her last name instead of " teacher". Also you should use Mr, Miss, Ms or Mrs before the last name ( such as Mrs Smith or Mr Jones). This is polite. The teacher will tell you the title that he or she likes. It is impolite in the USA to eat, drink or chew gum during class. Don't do these until the break. Also, removing your shoes in the classroom is not polite. In America, if your teacher's name is Susan Black, what should you call her politely? A) Ms Black B) Ms Susan C) Susan Black D) Teacher Black
A
An astronomer is making a case for launching pop singer Justin Bieber into suborbital space aboard a private rocket ship. The idea is not to rid the world of the Canadian teenager -- he would come back down to Earth eventually, after all -- but rather to help jump-start the emerging suborbital spaceflight industry. It would generate a lot of public interest, which would help commercial spaceflight pick up some much-needed momentum, said Seth Shostak, senior astronomer at the Search for Extraterrestrial Intelligence (SETI) Institute in Mountain View, California. "If there's more interest, there are more customers. If there are more customers, there's more technical development. It's a positive feedback loop, and obviously that's good." Such missions would return to Earth without completing a full lap around the planet. Instead, the flights would hit the edge of space about 62 miles (100 kilometers) above Earth, experience a few minutes of weightlessness, then re-enter the atmosphere and land back at a spaceport. None of these firms are ready to fly customers yet, but some are getting close. For instance, Virgin Galactic hopes to begin powered test flights of its SpaceShipTwo vehicle later this year, with commercial operations perhaps beginning in 2013 or 2014. It is SpaceShipTwo that reportedly grabbed the attention of Beyonce and Jay-Z. Virgin Galactic has collected deposits from nearly 500 customers willing to pay $200,000 for a ride aboard SpaceShipTwo, and both Virgin and XCOR have inked deals to fly scientists and their experiments on research flights. So a suborbital market already exists -- but Shostak is thinking about ways to make it grow. A celebrity launch isn't Shostak's only idea. Suborbital firms should also promote their activities aggressively via social media, Shostak said, and they should make sure their spaceships are bristling with cameras both inside and out, to give the public dramatic views of every mission. Some observers view commercial suborbital spaceflight as a potentially... What can we infer from the text? A) SpaceShipTwo will be the first to fly. B) Famous people will be the main passengers in the future. C) The space trip is still in preparation. D) Every space trip will be made into a film.
C
Q: Marjorie Gestring Marjorie Gestring was a springboard diver from the United States who won the gold medal in 3-meter springboard diving at the 1936 Summer Olympics in Berlin, Germany at the age of 13 years. With the cancellation of the Olympics in 1940 and 1944 because of World War II, Gestring did not get a chance to defend her title, and her comeback attempt for the 1948 Summer Olympics failed. Bob Mathias 17-year-old American Bob Mathias won the decathlon only four months after taking up the sport. He is the youngest athlete in Olympic history to win a men's track and field event. By the time Mathias retired from decathlon competition in 1952, he had nine victories in nine competitions. He had won two gold medals separately in 1948 and 1952. In 1954 a film about his early life called The Bob Mathias Story was made, in which he and his wife played themselves. Fu Mingxia Fu Mingxia was born on August 16, 1978 in Wuhan, Hubei Province. At an early age, her father taught her to swim at a nearby river. She started exercising gymnastics at age 5, soon turning to diving. Fu Mingxia left home at age 9 to train in Beijing. In the 1992 Summer Olympics held in Barcelona, Fu Mingxia became China's youngest Olympic champion ever when she won the 10-meter platform gold at the age of 13. Ian Thorpe Ian Thorpe was born on 13 October, 1982. He is a former Australian freestyle swimmer. At the age of 14, he became the youngest male ever to represent Australia. Ian Thorpe, 17 years old, won the gold medal in the 400m freestyle by breaking his own world record in Sydney 2000. He has won five Olympic gold medals. According to the passage, the youngest athlete who won the most Olympic gold medals came from _ . A) Australia B) America C) China D) Germany
A: A
Whatever our differences as human beings are we all think we're more like the rest of the animal world than we realize. It is said that we share 40 per cent of our genetic structure with the simple worm. But that fact has helped Sir John Sulston win the 2002 Nobel Prize for Medicine. Sir John is the founder of the Sanger Institute in Cambridge, which was set up in 1992 to get further understanding of the human genome . To help them do this, they turned to the worm. The nematode worm is one of the earliest creatures on planet earth. It is less than one millimeter long, completely transparent and spends its entire life digging holes through sand. But it still has lots to say about human life, and what can be done to make it better. What the worm told Sir John and his colleagues was that each of the cells in the human body is programmed like a computer. They grow, develop and die according to a set of instructions that are coded in our genetic make-up. Many of the diseases that humans suffer from happen when these instructions go wrong or are not obeyed. When the cell refuses to die but carries on growing instead, this leads to cancer. Heart attacks and diseases like AIDS cause more cell deaths than normal, increasing the damage they do to the body. Sir John was the first scientist to prove the existence of programmed cell death. What is the subject discussed in the text? A) The theory of programmed cell deaths. B) A great scientist--Sir John Sulston. C) The programmed human life. D) Dangerous diseases.
A