2019_2020学年高中英语Unit20NewFrontiers课时跟踪检测(八)北师大版选修7

课时跟踪检测(八) Lesson 2 & Lesson 3 Ⅰ.根据首字母或汉语意思写出单词1．When hearing the fire alarm, the audience rushed to the nearest emergency exit.2．Poor though they are, the women still donate a lot of money to the Red Cross every year.3．He promises me that he can cure (治愈) me but I still doubt him.4. Far away from each other, the two sisters correspond (通信) every week.5．His outspoken (坦率的) remarks made him an easy target for the other side.Ⅱ.单句语法填空1．I was_coming (come) to see you when I ran into my best friend, Tom.2．Looking (look) out of the window, I saw some students playing there.3．He went out and left the baby sleeping (sleep) in bed.4．Without solar radiation, animals and plants would_die (die)．Ⅲ.选词填空The monument was_dedicated_to the memory of the soldiers who had died there.2．Ordinary people such as you and I have wrestled_with these puzzles over the centuries.3．Single journey adult fares usually range_from D|S4 to D|S13 per trip depending on distances travelled.4．The child often turns_to his mother for comfort.5．I have corresponded_with a foreign friend and we write to each other once a month.6．Have you figured_out what's wrong with your car?Ⅳ.课文缩写语法填空PIONEERS OF SCIENCEIf you had to choose the single most important discovery of the 20th century, you would have a real dilemma on your hands. In just 100 years, the world changed completely. Medical advances ranged 1.from discovering the causes of diseases under microscopes to surgical procedures replacing diseased organs with 2.donated (donate) ones.It is possible to single out a few 3.pioneers (pioneer) of the 20th century. Here are five of them.One of the 20th century's premier scientists was Albert Einstein. In the summer of 1905, this outspoken young man was rocking his one­year­old baby 4.when he was suddenly inspired. “E＝mc2” was born.5．Using (use) the most high­powered telescope of the time, he began the long, slow process of exploring our galaxy. Edwin Hubble discovered small areas of mist which were 6.in fact galaxies like our own millions of light years away from us.Alexander Fleming saw 7.a blue mould in the dish around which the bacteria had been destroyed. This blue mould was in fact the natural form of penicillin.During the Second World War, when Fleming's discovery was first helping 8.to_cure (cure) people, the US Navy was looking for ways of improving the accuracy of their missiles. The navy turned 9.to Eckert, an engineer, and Mauchly, a physicist, to wrestle with the problem and produce a machine which was the world's first computer to do the job. 10.Without the breakthroughs of these pioneers in science and technology, whether lucky or planned, the world as we know it today would have been a completely different place.Ⅴ.阅读理解What's more exciting than having a fresh hot pizza delivered to your door? How about having it brought to you by a robot? Thanks to Domino's Robotic Unit or DRU, that just became a reality. On March 8, the three­foot tall robot made its first delivery to some lucky residents in Brisbane, Australia.The autonomous DRU is the result of a cooperation between Domino's Pizza Australia and Marathon Robotics. The machine can cover a distance of up to 12 miles and back before requiring a battery recharge. Equipped with Google Maps and GPS guidance, DRU can go along bike paths and sidewalks and also find the most efficient way to its destination. LIDAR, a laser­based sensor technology similar to the one used i n self­driving cars, enables DRU to detect and avoid obstacles, while traditional sensors ensure its path to its destination is safe. DRU's plastic shell protects the food from the bad weather, while its aluminum and steel container ensures that the pies remain hot.The robot can fit up to ten pizzas and even has a separate cold area to accommodate drink orders. To access their food, customers have to enter the unique code provided to them by the company. This not only ensures that they pick up the right pizza, but also prevents the pies from getting stolen.Domino's expects additional DRUs to be ready for service in their various Queensland locations within the next six months. But don't expect these super cute robots to replace humans anytime soon. According to Domino's, the DRU still needs extensive testing, which the company believes could take up to two years. There is also the issue of regulations. The public use of autonomous vehicles is still banned in most countries. But Don Meij, the CEO of Domino's Pizza, is not worried. He believes that one day DRU will become a necessary part of the Domino's family.语篇解读：文章介绍了一款名为DRU的机器人系统的工作原理以及它的功能：为人们派送比萨。