Q: Satellites are an important part of our ordinary lives.For example, the information for weather forecasts is sent by satellite.Some satellites have cameras which take photographs of the Earth to show how clouds are moving.Satellites are also used to connect our international phone calls. Computer connections of the World Wide Web and Internet also use satellites. Many of our TV programs come to US through satellites.Airplane pilots also sometimes use a satellite to help them find their exact location. We use satellites to send television pictures from one part of the world to another.They are usually 35,880 kilometers above the equator.Sometimes we can see a satellite in the sky and it seems to stay in the same place. _ is because it is moving around the world at 11,000 kilometers an hour--exactly the same speed that the earth rotates.A satellite must orbit the Earth with its antennae facing the earth.Sometimes, it moves away from its orbit ,So there are little rockets on it which are used to put the satellite back in the right position.This usually happens about every five or six days. Space is not empty! Every week, more and more satellites are sent into space to orbit the Earth.A satellite usually works for about 10-12 years.Satellites which are broken are sometimes repaired by astronauts or sometimes brought back to Earth to be repaired.Often,very old or broken satellites are left in space to orbit the Earth for a very long time.This is very serious because some satellites use nuclear power and they can crash into each other. What's the speed the earth rotates at? A) 35,880 kilometers per hour. B) 335,880 kilometers per hour. C) 11,000 kilometers per hour. D) 110,000 kilometers per hour
A: C

Q: In London, there has always been a main problem. In order to solve this problem, the government has decided to have a bike revolution . It has decided to provide 6,000 bikes for the people to rent. The government encourages local people to ride bikes in order to solve the traffic problem. More than 12,000 people have agreed to the idea. Some of them ask for more than one key. Although there are not enough bikes, an official from the government said that they would find some ways to deal with such a shortage. Local people can get these bikes at special docking stations .There are about 315 docking stations across the city. About 12,450 keys have already been handed out to the local people, but only 6,000 keys can be used now. Let's see the cost you need to pay. One key costs PS3, and the cost of using the bike is PS1 for an hour. The cost per hour increases as the hours increase, so it will cost PS50 if you rent the bike for 24 hours. The official from the government said they also needed to face a lot of problems, for example, some bikes may be lost. But they said they would try their best to solve all the problems to make sure the success of the program. In London, the government has decided to provide bikes for local people to rent in order to solve _ . A) the traffic problem B) the population problem C) the family problem D) the health problem
A: A

Q: Welcome to Wen Feng's Clothes Shop! Big Sale ! Goods Colors Price (each) Pants Black, white, brown Y=65 Coat Black Y= 95 Cap Blue, white Y= 15 T-shirt Red, green Y= 60 Shoes Black , white Y= 80 Bag Blue Y= 35 Peter has two hundred yuan , so what can he buy? A) Two bags and two pairs of pants . B) Three caps and two coats . C) One T-shirt and two pairs of shoes . D) A pair of shoes and two pairs of pants .
A: A

Q: Some advice on Travel 1. Forget fashion ! Always wear your most comfortable clothes when going on long journeys. 2. Travelling on trains and buses can be boring, so take a good book to read. 3. If you're going somewhere cold, remember to put on your warm clothes! 4. If you are going somewhere sunny, remember to bring your sun-block and sunglasses. 5. Always take a camera with you to _ those special moments. 6. Be careful with your things whenever you go to a busy place, like a train station. There are many thieves there! 7. Most countries have lower prices for students, so if you are a student, take your student card with you. 8. Always leave a room in your bag and buy presents on the way home. 9. Bus tours often stop at expensive shops along the way, save your money by buying presents at local shops. 10. If you travel abroad , remember to take your passport. Whatever you do, don't lose it! ,. If you go to Hainan Island for a trip in summer, you should take _ with you. A) some fruit and drink B) warm clothes and sports shoes C) sunglasses and sun-block D) fashionable clothes and a big bag.
A: C