Unit 8 Discoveries. Lesson 24 An Experiment Report.同步练习（含答案）

Unit 8 Discoveries Lesson 24 An Experiment Report 同步练习 ( ) 1.This isn’t my T-shirt. _____ is blue. A. I B. Me C. Mine D. My ( ) 2. Flowers usually come out _____ spring every year. A. in B. at C. on D. of ( ) 3 — _____ is a ticket to Garden Expo? — It’s about 100 yuan. A. How much B. How many C. How long D. How often ( ) 4 There _____ a park near here. Shall we take a walk? A. be B. were C. is D. are ( ) 5. Which is _____, the telephone, the computer or the light bulb? A. useful B. more useful C. most useful D. the most useful Scientists study the world and learn about things using a process called the scientific method(方法). By asking important questions and?? 1???the answers, it is possible to make amazing discoveries! Sometimes a scientist is?? 2???to answer his own questions, but if he has taken good notes another scientist may come along later who is able to use new knowledge to answer it. When you use the scientific method to?? 3??an experiment, you start by making observations(观察) about something that? 4??you. Based on your observations, you make a hypothesis. This is using? 5???you know to make a smart guess about what you think could happen. Then you are ready to begin your experiment. All?? 6???your experiment you take down notes, which are?7? experiment date(资料). You are constantly making observations during this time. You may make discoveries that cause you to improve your experiment as you go.?? 8???, you conclude your experiment and begin to look over your notes to decide what it all means. Based on what you have learned, you make a final statement about???9??your hypothesis was correct or not. You have to have reasons and evidence to support what you are saying. Using the scientific method can be difficult, but rewarding. Because all the steps are organized in a process, the?? 10??are more valid(可信的). When you provide observations as evidence to support what you are saying, your ideas are more likely to be accepted. ( ) 1.??A. waiting for? B. searching for? C. worrying about???? D. complaining about ( ) 2.??A. unable??????? B. sure??????????? ?C. ready ?????? ?D. surprised ( ) 3.??A. read????????? B. refuse?????????? ?? C. prevent????? D. conduct ( ) 4.??A. hurts???????? ?B. represents????????C. interests????? D. attacks ( ) 5.??A. what???????? B. when????????????? C. why????????? D. which ( ) 6.??A. without ??????B. including????????? C. except??????? D. during ( ) 7.??A. controlled??? B. arranged????????? C. called???????? D. carried ( ) 8.??A. Obviously??? B. Suddenly????????? C. Finally????????? D. Mostly ( ) 9.??A. whether????? B. what????????????? C. how?????????? D. when ( ) 10.? A. problem??? B. results??? ?????????C. services??????? D. aims It is widely accepted that television is playing an important part in people's lives. But, there is a heated discussion as to whether television does good or harm. Television keeps one learning more about present events, allows one to follow the most recent developments ... ...