21.Who designed (設(shè)計(jì)) the first helicopter (直升飛機(jī))?Who(1)
of the most famous pictures in the world?Who knew more about the human body than most(2)
?There is an answer(3)
all these questions…Leonardo da Vinci. Leonardo may have been the greatest genius (天才)(4)
have ever known.He lived in Italy around the year 1500,but many of his inventions seem modern to us today.For example,one of his notebooks has drawings of a helicopter.Of course,he couldn't(5)
a helicopter with the things he had.But scientists say his idea would have worked. But Leonardo(6)
an inventor.He was one of the greatest artists of his day.By the time he was twenty years old,he was called a master (大師) painter,and as he got older he became(7)
more famous.Sometimes he drew a hand ten different ways(8)
he was ready to paint. Many of Leonardo's wonderful paintings are still with(9)
today.You may know one of his most famous works the(10)
22.Bike-sharing has swept across China,with an increasing number of people choosing bike riding instead of driving.The bike that the service company provides has GPS or Bluetooth on it,and those bikes can be easily unlocked with a smart phone and left anywhere in public.Bike-sharing allows people to borrow a bike from one place and return it at another place easily. In some cities,we can see more and more people riding this kind of sharing-bikes.It's very convenient to use the bikes if you have a smart phone.First,you have to download such an APP on your smart phone.Then what you need to do is to find a nearest bike through the APP,scan the QR code on the bike or connect your phone with the bike over a Bluetooth wireless connection.You will find the bike unlocked itself.Then you can enjoy your trip.
What's more,the greatest advantage of bike-sharing is that you can easily find one and never worry about where to park it.The cost of riding depends on the time that you spend.Normally,every hour you ride,you need to pay one yuan.It doesn't cost so much,does it?
However,problems come out at the same time.Some people park the bikes in their own homes.Some people don't take care of the bikes.Some people even steal the bikes.
Technology and science have changed our social lifestyles.We have to say bike-sharing brings us more convenience without doubt.And we also hope that people can not only enjoy it but also put it to good use.
(1)From the first paragraph,we know
. A.there is a computer inside the bike B.people can only find sharing-bikes in China C.a(chǎn)ll the people choose sharing-bikes instead of cars D.people can borrow a bike from one place and return it at another place (2)The underlined word"scan"in Paragraph 2 probably means
in Chinese. A.瀏覽 B.掃描 C.審視 D.細(xì)查 (3)If you want to use a sharing-bike,you must
first. A.have a smart phone and download an APP B.download an APP and pay for the trip C.unlock the bike and download an APP D.find a nearest bike and borrow it from anyone (4)Which of the following is NOT talked about in this passage?
A.Bike-sharing is very cheap. B.Some people may steal the sharing-bikes. C.Sharing-bikes are easy to unlock. D.Bike-sharing is a kind of green transport. (5)The passage probably comes from a