Made of canruohanxing 灿若寒星制作9B Unit 4 Welcome to the unit 一、词汇1. Reading is a good _______ ( 形式 )of learning English.2. Mars is one of the _________( 行星 ) of the sun and it goes round the sun. 3. These boots are _________ (专门地 )designed for the children under 6 years old. 4. Meals on Mars will probably not be much ______(美味的) than they are today. 5. More actions ought to be taken to prevent people _________( 污染 ) the environment any more. 6. I think the space _____ (sleep) bag is very important for an astronaut. 7. We need to wear special boots to make us heavier because there is _______(little) gravity on Mars. 8. There is more _______ (pollute) air in the city than in the country. 9. The long journey on bus may be ___(comfort), but you can enjoy the nice views along the road. 10. Always ________ (compare)with others is not good for you. 二、选择( )1. The train runs _______ a speed of 180 kilometres per hour. A. in B. on C. for D. at ( )2. You should take the medicine ________ the three meals. A. among B. between C. in D. before ( )3. There are a lot of buildings on _______ side of the street. A. every B. each C. both D. all ( )4._________ delicious the food is! A. What B. What a C. How D. How a ( )5. If you don ’t want to go to see the movie this evening, neither ______ I. A. do B. am C. will D. should ( )6. -- I'm always a little nervous when I talk to Mr. Smith. -- ____ . He is strict, but he is kind to his students. A. That's right B. What a pity C. Take it easy D. Take your time ( ) 2. Virgin Galactic told reporters that the cost of travelling into space would be low enough for common people to afford the year...