冀教版九年级全册 Unit 5 Look into Science Lesson 25：Let's Do an Experiment（含答案）

Lesson 25 Let's Do an Experiment! 填空题 Besides the (science) result, there are also some other bad influences of taking photos of food before meals. Our physics teacher always does some (experiment)to help us understand some difficult theories. In the forest, I learn about the poem “The air is (fill) with birdsong”. My brother held my hand (tight) because of fear. I had to force myself (get) up early this morning. Lucy is organized and her room always looks ( tidy) than mine. After its 23-daytravel, Chang'e 5 (bring) back some rocks from the moon in 2020. I hope this excellent report will be (help) in answering your question. This bus doesn't go to the train station. I'm afraid you'll have to （下车）at the next stop. High technology was used in UEFA Euro 2016 to （确定）the matches were fair enough in France. 词语运用 Zu Chongzhi was one of the greatest mathematicians(数学家)in ancient China. He was born during the Northern and Southern 1. (dynasty). From a young age, Zu was taught natural science,astronomy(天文学), math and so on. The little boy was 2. (interest )in all of these subjects, especially in 3. . Zu was best known for his calculation(计算)of pi(π). According to the record, he did all the work using nothing but wooden sticks. 4. took him lots of time to work out the value 5.b 3.1415926 and 3.1415927. No one at that time was able to do better than Zu. And now the achievement is still praised by people around the world.In order to remember Zu, some mathematicians suggest 6. (call)pi Zu Lv” Zu was successful not only in math, but also in astronomy. He worked out that a year should be 365.24281481 days long and created the Daming Calendar. 7. , government officials at that time did not agree with him. The great mathematician 8. n saw his calendar put into use. Almost ten years after his 9. ( die), the new calendar was finally accepted. Zu was an inventor,too. He once made a vehicle 10. carried a pointer(指针). NO matter how the vehicle turned, the pointer always pointed to the south. 补全对话 A: Hi, Simon! 1. ？ B: I am doing an experiment with my mobile phone. A: With your mobile phone B: Yes. Look! 2. ！ A: It's really interesting. Let me have a try. 3. ？ B: Yes, it is. The mobile phone is my favourite invention. Because I can do lots of things with it. Is the mobile phone your favourite A: 4. .I like cars best. They bring great convenience to our life. B: That's true. There are many inventions in the world. What do you think of them A: I think they have changed our life a lot. I want to invent something useful some day B: Gook luck to you. A: 9. . B: You're welcome! 参考答案： 一．1.scientific 2.experiments 3.filled 4.tightly 5.to get 6.tidier 7.brought 8.helpful 9.get off 10.make sure 二．1.dynasties 2.interested 3.math 4.It 5.between 6.calling 7.However 8.never 9.death 10. that 三．1.What are you doing How interesting it is! Is it your favourite invention No, it isn’t. Thank you.