1、(一)When Alla Wagner couldnt sell her $1.7 million house, she came up with an idea to find a new owner. Shes holding a writing contest and the winner will get the house. _ 2011, Ms. Wagner and her family built a house in Millarville. After (2)_ (hurt) her back last year, Ms. Wagneris unable to go up
2、and down the stairs. So she is living on the upper floor of the house. She hates to sell (3) _ house. But she doesnt want to make other changes that can make it easier for (4)_ (she) to get around. Ms. Wagner has been trying to sell the house for a few months, but so far, no one (5) _ (be) intereste
3、d. She began to think of other (6)_ (way) to let someone else have the house.After doing some research to make sure her idea wasnt against the law,Ms. Wagner (7)_ (begin) her “Write a Letter, Win a House” project on January 5.To have a chance of winning the house, people must write a letter to Ms. W
4、agner (8)_ answers the question: Why would moving to this lakefront dream home change your life?”“If somebody wants (9)_ (write) a poem, they can write a poem,” says Ms. Wagner.The 500 best letters (10)_ (choose),and then judges (评判员)will choose a final winner from these letters.(二)Many companies ar
5、e working on self-driving vehicles like cars and trucks. Almost all self-driving cars still carry a safety (1)_ (drive) who can take over the car if there is trouble.Waymo and many (2)_ (company)are trying to use self-driving vehicles to move people around. (3)_ moving people is kind of dangerous. S
6、elf-driving experiments with goods are much safer. Kroger is one of (4)_ largest grocery store chains (杂货连销店)in the US. The company is teaming up with Nuro, a robotics company based in Mountain View, California, for its delivery (运送)service. Through this partnership, customers will be able to place
7、same-day delivery orders through Krogers Click list ordering system and Nuros app.Nufo has created a special car just for deliveries. The car (5)_ (call) Rl. The R1 is(6)_ (small) than most cars and doesnt weigh as much.Walmart is also experimenting with self-driving deliveries. (7)_ the autumn of20
8、18, the company worked with the car-maker Ford on a program that allowed customers (8)_ (have) their goods delivered by self-driving car.Walmart is working with Baidu, a (9)_ (China) technology company. Baidu has done a lot of work in artificial intelligence teaching computers to learn and make (10)
9、_ (decide) on their own.(三)In 1975, Xia Boyu lost both feet after trying to climb Mount Everest. But last year, he (1)_ (become) the first person from China with two artificial (人造的)legs to reach the top of Mount Everest. Mount Everest is the (2)_ (world)highest mountain. The top of the mountain is
10、about 8850 meters high. Many people try to climb it, but it is (3)_ (difficulty). The height of the mountain makes it hard (4)_ (breath) and to be active. When Mr. Xia first tried to climb Mount Everest in 1975, he and his team were forced to head back down because of (5)_ bad weather. On the way ba
11、ck, he gave his sleeping bag to a person who was sick. His feet were hurt(6)_ badly by the cold that they needed to be cut off. About 20 years after that, his legs also had to be cut off because (7)_ cancer (癌症). But Mr. Xia never stopped (8)_ (dream) of Mount Everest. Mr. Xia learned to use artific
12、ial legs.Almost 43 years after his (9)_ (one)climb, Mr. Xia finally reached the top of Mount Everest. UI love the mountain. I (10) _ (fight) for it with my entire life,” he said.(四)In one small American city, snowball fights are illegal (违法的). Whenever students visited town hall, the town leaders al
13、ways talked about the snowball law. They wanted to make sure that students understood they had the power to change it. But no one had ever tried. Dane Best was (1)_ (difference). Nine-year-old Dane Best lived in Severance (2)_ his parents and little brother. He didnt like the law, and he (3)_ (think
14、) it was outdated.Dane learned how the town government worked. He wrote a letter to ask the town (4)_ (change) the law, and he got many of his friends at school to write letters, too.Then he went to a town meeting and made(5)_ speech. He wanted to change the law so that snowball fights would (6)_ (a
15、llow). “I want to be able to throw a snowball without (7)_ (get) in trouble,” he said.The town government agreed and changed the law. Dane became the (8)_ (one)person in Severance who could have a snowball fight. Who did he want to hit with, a snowball? (9)_ (he) four-year-old brother.Dane (10)_ his family have researched other rules,
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