【正文】 nto the car and started the engine (引擎 ). When Rocco39。s permission(允許 ). * No food or drinks are to be allowed in the science lab. Before the Experiment * Read all instructions carefully before every experiment(實驗 ). * Prepare all apparatus(儀器 )and put them in right places so that you will not knock them over while doing the experiment. During the Experiment * If you are unsure of how to use any apparatus or how to operate, ask your teacher for help. * Never smell or taste chemicals unless your teacher gives permission. After the Experiment * Wash all apparatus after use and return them to the places where they were. * Throw waste materials into proper waste baskets. First Aid * Report all accidents to your teacher immediately. * If you spill any chemicals onto your body or clothing, wash with plenty of water and report to your teacher. 36. You must know the LAB RULES ______ the first lab lessons. A. before B. after C. during D. since 7 37. It is necessary for you to ______ before every experiment. A. talk with your classmates B. take enough food and drinks C. smell chemicals immediately D. read all instructions carefully 38. According to the rules, if you are not sure of how to use any apparatus, ______. A. read the rules carefully B. try them again and again C. ask your teacher for help D. return all apparatus to the places where they were 39. The underlined word “spill” means ______. A. 照射 B. 傷害 40. When you are in the science lab, you mustn’t ______. A. be careful in order to prevent injury B. listen carefully when your teacher explains the rules C. taste chemicals without the teacher’s permission D. throw waste materials into proper waste baskets D Have you ever seen a car without a driver? It sounds crazy, but these puterdriven driverless cars will soon be used on the roads near you. Companies like Google and Tesla have been designing and testing these cars, and the technology is there. So how? The cars have sensors（感應(yīng)器） all around which can find other cars and objects in the road. Road signs are read by cameras, and satellite navigation systems（衛(wèi)星導(dǎo)航系統(tǒng)） are used so the car knows how to get where you want to go. All you have to do is type in the address! Finally, a central puter system takes in all the information that it receives from the sensors and cameras and works out when to speed up, stop and turn. Sound like your idea of heaven（天堂） ? Sitting back, looking out of the windows and even watching a film or reading a book while ‘ driving’ would be possible with this new technology. You wouldn’ t have to worry about remembering directions to where you’ re going. What’ s more, puters would also drive more safely than people — they would obey the rules and have quicker action times when in dangerous situations. However, there are some disadvantages of driverless cars. Computers would have 8 difficulties making ethical（道德的） decisions: if a child ran into the road, would the puter choose to hit the child or turn suddenly and potentially kill the car’ s passengers? Moreover, I personally find driving fun I’d miss never driving a car myself. There would also be other decisions to be made should children, or drunk people, be allowed in a driverless car by themselves? Or would there need to be a person with a driving license in the car at all times? I’m not certain I’d want a driverless car – but it’s only a matter of time before they’ll bee more cheaper and popular on our roads. 41. When using a driverless car, you need only ________. A. read the road signs carefully B. check the cameras C. put the address into the puter D. remember the directions 42. The third paragraph mainly tells us about the ________ of driverless cars. A. instructions B. standards C. advantages D. tests 43. The underlined word “potentially” in Paragraph 4 means “ _________“. A. possibly B. successfully C. especially D. naturally 44. What’s the writer’s opinion about future driverless cars? A. They’ll cause more accidents. B. They’ll be less expensive. C. They’ll use less energy. D. They’ll run much faster. 45. According to the passage, which sentence is wrong? A. There are some disadvantages about the new cars. B. The new kind of cars are not used on the road yet. C. The writer thinks the new cars are safer. D. The writer himself