Don’t be surprised if you see a car going down the road without a driver in Beijing these days.In March, 2018, baidu was given a license to test its self-driving cars in Beijing, China Daily reported.
Self-driving cars have been in development since 2010, when google announced that it was making such cars. Since then, companies like Tesla, Uber and Baidu have been working to produce and test their own self-driving cars.
self-driving cars are expected to change the way we get around. They are safer and more environmentally friendly than regular cars. They can remove the stress(压力) of driving and allow disabled or blind people to get around mroe easily.
But self-driving cars have their own disadvantages as well. In one test, researchers pointed a laser pointer(激光棒) at the car’s sensors(感应器) while it was moving. The car mistakenly thought that the laser beam(波束) was in its way and slowed down or changed directions.
The software(软件) that is used to direct the cars may not be safe enough. Reported Live science. Sometimes, without any reasons,it may break down when we use our computers or smartphones. If the software in a self-driving car happened to crash. The results could be deadly.Maybe improvements to the software could solve this problem.
1.when did Baidu get a testing license of its self-driving cars in Beijing
A. In february, 2018 B. in march,2018 C. in april,2018 D. in may, 2018
2.which company has firstly developed self-driving cars since 2010.
A. Google B. tesla C. Uber D. baidu.
3.the moving car may _____. if a laser beam is in its way.
A. Stop itself B. hit others C. slow down D. move on
4.the underlined word “crash” in paragraph 5 probably means___.
A. 奔溃 B. 碰撞 C. 暴跌 D. 坠毁
5.this passage may come from ____
A. A story book B. a travel guide
C. a sports newspaper D. a science magazine.
1.B 2.A 3.C 4.A 5.D 【解析】文章介绍了无人驾驶汽车的一些情况。 1.根据.In march, 2018, baidu was given a license to test its self-driving cars in Beijing可知在2018年3月,百度得到了无人驾驶汽车的检测证件;选B 2.根据self-driving ca...科目:初中英语 来源:四川省眉山市2018届九年级中考考前预测试卷(四)(无听力) 题型:材料作文
书面表达
目前,学生考试作弊现象严重,请围绕以下要点谈谈其中原因以及个人建议。
原因:1.考试太滥
2.自身勤奋不够
3.把大量时间用在上网和玩游戏上
4.为了骗取家长和老师高兴
看法与建议:1.作弊有害; 2.要做人诚实,学习发奋; 3.学校应减少考试。
要求:1.字数 80-100; 2.围绕要点可适当发挥; 3.文章开头已给出,不计入总字数。
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At present, a number of middle school students have picked up a bad habit-cheating in examinations. There are three main reasons. First, schools have given students too many exams, some of which ar...查看答案和解析>>
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When I am in a western restaurant I always use__hand to hold the knife and___hand to hold the fork.
A. one;the other B. the other;one C. another;one D. the other;another
A 【解析】句意:当我在西餐馆时,我通常用一只手拿刀,另一只手拿叉。another泛指(三个或三个以上中的)另一个;the other 接单数时,表示两个中的另一个;根据我们只有两只手,one--- the other--- 一个---另一个;故选A查看答案和解析>>
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—May we leave the classroom now? —No, you ____. You ______to leave until the bell rings.
A. needn’t; aren’t allowed B. may not; are allowed
C. mustn’t; aren’t allowed D. can’t; are allowed
C 【解析】句意:-我们现在可以离开教室吗? 不,你禁止这样。直到铃声响起你才被允许离开。Needn’t 指不必要,may not指不可以,mustn’t指禁止,can’t指不能,这里表示的是“绝对禁止”,用mustn’t。not…until表示“直到…才…”,“被允许去做…”为“be allowed to do…”,故本题选C。查看答案和解析>>
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VII 短文填词
In the western world, Chinese takeout with rice and forturne cookies(幸运饼干) is a popular kind of food. But this kind of Chinese food isn’t very authentic(正宗的),it is very 1.
/`d?fr?nt/from real Chinese food. Now over the years, real Chinese 2.(dish) have become more popular in foreign countries as well.
Chinese people who live 3. / ?`br?:d/introduced many of them. Some have been popular in foreign countries for many years, 4. others are new, like tanghulu. It is a traditional Chinese snack that is made 5. fruit, usually Chinese hawthorns(山楂). The fruit is struck on a stick of bamboo. Then it is 6. (cover) with sugar syrup(糖浆), which becomes hard after it cools down.
Wang JiaLiang, a tanghulu vendor(摊贩)from China, sold 8,000 sticks in Russia 7. one day. Tanghulu made him 8./?fe?m?s/ in Russia, with his picture 9.(appear) in the local newspaper. In the Russian city of Vladiostok, the deputy mayor(副市长)is a big fan of the snack, always coming to buy it10.(he) from Wang JiaLiang.
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--Mom, could I have a new computer?-- ___. We don’t have enough money.
A. Sounds great B. I am afraid not C. Don’t mention it.
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--The last bus has left! What should we do?
-- We have no other ___now, let’s take a taxi.
A. choices B. reasons C. results
A 【解析】句意:——最后一班车离开了,我们该怎么办?——现在我们没有其他的选择,让我们乘出租车吧。A. choices 选择; B. reasons 原因; C. results结果;根据The last bus has left最后一班车离开了,let’s take a taxi.让我们乘出租车吧,可知是没有其他的选择,故选A查看答案和解析>>
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汉译英。
1.你明天一定要把书还给我。
You _________________the bike _________________ tomorrow。
2.她喜欢音乐,所以她每天花1小时听音乐。
She _________________ , so she _________________an hour _________________to music every day.
3.你确信房间里有没有人吗 ?
Are you _________________there _________________in the room?
4.我们不能同时看电视和做作业。
We _________________ and do our homework。
5.她是个很善良的女孩。她从不惹麻烦。
She is a _________________ girl. She never_______.
1. must return to me 2. likes music spends listening 3. sure is no one 4. can't watch TV, at the same time 5. kind, makes trouble. 【解析】 1.一定must;还给某人(我)return to sb.(me);根据句意结构和中英文提示...查看答案和解析>>
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The simple activities below will make everyone in your family leave chair and help you get closer while burning some calories.
Jumping Rope Jumping rope burns about 600 calories an hour. Jump ropes are cheap. The cheapest is less than 10 dollars .Also, because jump ropes are easy to carry, parents can pack one in their suitcase for exercise while they travel. |
Hula Hooping Hula hoops became popular toys in the late 1950s and are still a lot of fun for families. Hula hooping can burn more than 500 calories an hour. |
Dancing Why not dance to music when you are at home? Having a family dance party lets parents and children get happy while also getting some exercise. Hip hop dancing can burn 400 calories an hour. |
Walking the Dog Studies have shown that owning a dog can make you healthier. One reason may be that you are able to take more walks when you walk a dog. Walking the dog can burn 200 calories an hour. If you daily walks have become more like a chore, add some fun .Go as a family, pick different ways each day, and do some running. |
根据材料内容选择最佳答案,将其标号填入题前括号内。
1.Which activity can burn the most calories an hour ?
A. Jumping rope B. Hula Hooping
C. Hip hop dancing D. Walking the dog
2.The exercises above __________________ .
A. can only be done outdoors B. can help families to get closer
C. are no fun at all. D. are difficult to do
3.If you feel bored because you walk the dog every day, you can do these things EXCEPT ______________ .
A. take less walks. B. go as a family.
C. choose different ways each day. D. do some running while you are walking the dog.
4.What can we learn from the passage ?
A. It is not suitable to carry a jump rope when traveling.
B. Jump ropes are easy to carry,
C. Hula hoops were created in the late 1950s.
D. The author likes doing chores.
5.This passage is probably from a ___________________ .
A. travel book B. website for pets C. family magazines D. jumping rope ad
1.A 2.B 3.A 4.B 5.C 【解析】本文介绍了几种简单的活动,可以帮助家人一起来燃烧卡路里并增进家人间关系。 1.句意:哪一项活动能在一小时以内燃烧最多的卡路里?A.跳绳B.呼啦圈C.嘻哈跳舞C.遛狗。跳绳每小时600卡路里,呼啦圈每小时500卡路里,跳舞每小时400卡路里,遛狗每小时200卡路里,故选A。 2.句意:上述的锻炼方式可以帮助家人...查看答案和解析>>
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