人教版九年级全册Unit6When was it invented?语法填空练习（无答案）

人教新目标初中英语九年级上册Unit6语法填空练习
一
How many of your classmates drink cola now Nearly everyone 1． (drink) it. Did you know that cola was a kind of medicine about 200 years ago
John S. Pemberton was a doctor from America. He said to his friends, “I spent many months experimenting to find a kind 2． medicine for headaches. I mixed up different oils (油) and ingredients together and 3． (heat) them until I found something useful. So far, I 4． (succeed) already. I put the medicine into bottles (瓶) and begin selling it in drugstores. The people have to add water to it before 5．(drink).”
Then, how did cola go from being a medicine to a soft drink That happened by accident. One day, a man who had a headache came into a drugstore. He asked for a bottle of cola. He wanted 6． (take) it right away, so he asked the clerk to add some water to the medicine while he 7． (wait). But there was no hot water at the drugstore. The clerk suggested using soda water (苏打水) instead. The man agreed. After drinking it, the man said it tasted wonderful. From then on, it began to become more popular 8． before.
Today cola 9． (sell) in most countries around the world. 10． it is no longer used to treat headaches, it is still very popular and fills people with energy.
二
This is Tammela School, a primary school in Finland. The students are having a math class with their robot teacher.
Reuters(路透社) reported 11． the “teacher” is a small, blue machine about 25cm high. Whenever students have problems, it helps them very 12． (patient) and never gets bored.
“The robot can make students 13． (active) in class than usual. I see Elias as one of the tools to get different 14． (kind) of practice and activities into the classroom,” a teacher told Reuters.
So far the school 15． (introduce) four robot teachers, one of whom is a language teacher that can speak 23 languages and dance to music. “16． is necessary to encourage kids to come up 17． new ways to make use of technology in school life,” the head of the school 18． (add) in the interview.
The robot teachers are used 19． (help) improve learning. This doesn’t mean that human teachers will lose their jobs. The robots can teach well, 20． they are not able to keep class in order. The school still needs human teachers.
三
Cao Chong was the son of Cao Cao. One day, Sun Quan 21． (send) Cao Cao a present. It was a huge elephant. Cao Cao wanted to find out the weight of the elephant. “Can anyone tell me how 22． (weigh) it ” he asked the crowd around 23． (he). “Can we get a large scale（秤）” asked a soldier. 24．, no one could find a scale large enough. Just then, young Cao Chong had a wonderful idea. “I can weigh the elephant!” he said. “Let me have 25． try.”
Cao Chong asked some 26． (soldier) to lead the elephant onto a boat. As the heavy animal walked onto it, the boat went even 27． (low) into the water. Cao Chong drew a line on the side of the boat to mark how low it went. The elephant was taken off the boat and the boat 28． (fill) with rocks until it went down again and water reached the line on the boat.
Cao Chong then weighed the rocks. He added up the weight of all the rocks and said, “This is the weight of the elephant.” Cao Cao was very happy 29． his son. “My son is very clever, isn’t he ” he said. 30．(everyone) agreed.
四
Zhang Qian, born in Shaanxi Province, was the 31．（famous）explorer and imperial diplomat（外交家）during the period of the Western Han Dynasty. Zhang Qian in ancient China is regarded as “the first Chinese stepping to the world”.
In 139 BC, Zhang Qian was sent by Emperor Wu of Han to the Western Regions to build a military（军事）alliance（同盟）with the Greater Yuezhi（modern Tajikistan）32．（fight）against the Xiongnu tribes together. It took Zhang Qian 13 years to reach the Gui River where the people of the Greater Yuezhi lived. But unluckily, he 33．（catch）twice by the Xiongnu and forced to stay with them for over ten years. He married a Xiongnu woman and had a son, but his loyalty（忠诚）to the Han emperor never changed.
When Zhang Qian finally reached the Yuezhi lands, he was told that they were not willing to（愿意）fight against the Xiongnu. 34． the main aim of his task was not achieved, he wrote down the cultures and lifestyles of the peoples of the Westem Regions（地区）, and for the first time, the Chinese emperor was told about India, the Middle Fast and even some European 35．（country）.
In 123 BC, Zhang Qian followed General Wei Qing in a major military attack against the Xiongnu. His guidance led to 36． number of victories, which succeeded in ending the trouble by the Xiongnu of the Han Dynasty. In 119 BC, he 37．（lead）a second journey to the Western Regions and returned with western envoys（使者）four years 38．（late）. Zhang Qian’s expeditions（探险）provided valuable information 39． opening up the Silk Road, which helped the commercial（商业的）and cultural exchanges between the East and the West. This 40．（pioneer）achievements should be remembered forever.
五
My favourite inventor is Wang Xuan. He was one of the 41． (famous) computer scientists and inventors. He invented the technology, for printing Chinese characters. As a result, he is known 42． “The Father: of the Chinese Language Laser Typesetting(激光照排)”.
Since there is a big 43． (different) between Chinese and English writing systems, laser typesetting for the Chinese language was a serious problem for scientists all over the world. For this reason, Wang Xuan decided 44． (try) to think of a way to solve this problem. In1975, he began researching laser typesetting and electronic publishing systems(排版系统) for Chinese. Although he didn’t have success all 45． time, he never gave up. He is believed to be the 46． (two) most important developer in printing Chinese after Bi Sheng. Now, Wang Xuan’s amazing invention 47． (use) all over the world, and it has been very 48． (help) to the Chinese newspaper publishing industry(产业).
Wang Xuan was not only a great modern scientist 49． also a great role model for many young people. His life story teaches us that a person should follow 50． (he) own dream and try his best to make it come true.
六
As China grows stronger and stronger, more and more foreign people have started to learn Chinese. However, most of them find it difficult 51． (learn) Chinese. The problem has caught the attention of a famous AI company （人工智能公司） in China. To help foreigners learn Chinese, it has developed 52．smartphone app （应用程序） called iFLYChinese.
With the help of AI-based voice technologies, the app users can learn Chinese 53． (wise) and quickly. When users speak into the app in their own languages, the app can turn the voice messages into Chinese. When they read 54． (sentence) in Chinese, it will give them feedback （反馈）. It can also correct （纠正）55． (they) mistakes in their pronunciation and grammar. Finally, it will provide word cards for them to practice and review.
With the help of the app, many people have the ability to speak 56． use Chinese. Henry is one of them. He was born in Australia. He started to learn Chinese two years ago. He 57． (make) great progress since he started to use the app. Now he can have conversations 58． his friends.
The app has been very popular in foreign countries since it was developed. Now it 59． (use) by hundreds of thousands of people. They are in 60． (many) than one hundred countries. How quickly the number of its users has increased!
七
Zu Chongzhi was one of the greatest mathematicians in ancient China. He was born during 61．Northern and Southern dynasties. From a young age, Zu was 62．(teach)natural science, astronomy(天文学), math and so on. The little boy was interested in all of these subjects, especially in math.
Zu was best known 63． his calculation(计算)of pi (π). According to the record, he did all the work using nothing but 64．(wood)sticks. It took him lots of time 65．(work)out the value between 3.1415926 and 3.1415927. No one at that time was able to do 66．(well)than Zu. And now the achievement is still praised by people around the world. In order to remember Zu Chongzhi, some people suggest 67．(call)pi(π) “Zu Lv”.
Zu was successful not only in math, but also in astronomy. He worked out 68． a year should be 365.24281481 days long and 69．(create )the Daming Calendar. However, the government at that time did not agree with Zu. Zu Chongzhi never saw his calendar put into use. Almost ten years after his 70．(die), the new calendar was finally accepted.
八
The first robots were invented in the 1920s. Robots 71． (appear) in many American films. In some films, they are stronger, faster and 72． (clever) than people.
In real life, robots are 73． (main) used in factories. They do some dangerous and difficult jobs for humans.
Robots also help disabled people, for example, blind people. Today many blind people have a guide dog 74． (help) them. In the future, guide dogs might be robot dogs.
One kind of robot guide dog has wheels. It moves in front of the owner. It is very clever. It knows the speed of its owner. The owner 75． (wear) a special belt. This belt sends instructions to the owner 76． the dog, such as “stop here”, “turn left” or “turn right”.
In the United States, another kind of robot helps disabled people to take care of 77． (they) in their life. The robot hears the sound of its owner’s voice. It follows instructions such as “turn the page” or “make a cup of coffee”.
Robots are also useful in American hospitals. They can do simple jobs. At one hospital, for example, 78． robot takes meals from the kitchen to patients’ rooms. It never gets lost 79． this robot has a map of the hospital in its computer memory.
Though robots can help people in many different ways, they will never take the place of 80． (human).
九
The top Chinese scientist Yuan Longping, famous for his “Super Rice ”, died of illness at the age of 91 81． May 22nd, 2021.
Yuan Longping was born in Beijing in 1930. For almost 60 years, he gave most of his time 82． energy to rice research. So far, the hybrid rice (杂交水稻) 83． (help) millions of people out of hunger all over the world. His achievements were so great 84． he was called “The Father of Hybrid Rice” and won World Food Prize. During his lifetime, Yuan Longping spent 85． (much) time in the farm field than in his office. People could often see him watching plants 86． (careful) and thinking of ways to improve them, just as many Chinese 87． (farmer) do.
Yuan once said he had 88． dream—to “enjoy the cool under the rice plants taller than men”. 89． a pity it is that he can’t continue his dream now! But surely, people believe that 90． (he) dream will come true in the near future.
十
Scientists at the University of Liverpool (UL) have developed a robot that can perform experiments (实验) on its own. It’s not new for labs to use robots. 91． earlier robots usually stayed in one place and did a single job over and over.
The UL robot is the opposite of that. The 1.75-meter robot is similar in size to a human. Though it weighs much more than most people-400 kilograms—it’s able to 92． (easy) move around in the same kind of space as humans do.
The robot uses a special system (系统) to guide 93． (it) even in the dark. With one long arm which can turn in almost any direction, the robot can use several different 94． (kind) of lab tools. What’s more, the robot can do many different tasks (任务), such as picking things up, setting them down, weighing things and 95． (study)its results.
To test 96． (they) robot, the scientists gave a difficult job: find a special thing from water, using light.
In 8 days, the robot 97． (do) 688 experiments, always choosing its next experiment according to the results of the last one. The robot worked 172 hours straight, stopping for only a couple 98． hours each day to recharge its batteries (充电). To do the same amount of work would have taken a human several 99．(month).
Andrew Cooper, who leads the program, says the robot can help scientists and free up time for the human researchers 100． (think) creatively.
十一
No one knows when the first kite 101．（make）. The first record of a kite was 102．（much）than 2,000 years ago in China. Han Xin, the leader of an army, wanted to bring down a king. He decided to 103．（dig）a tunnel（隧道）into the king’s palace. He flew a kite over the wall of the palace to make sure the length （长度）of its string（线）. In this way, he could determine（测试）how long the tunnel should 104．（be）. His men in the tunnel took the kite string with them. When they reached the end of the string, they knew to dig up.
Kites 105．（fly）in Japan for hundreds of years. In the 1700s, kites were flown in autumn to give thanks for a good harvest. They were also flown 106．（send）good wishes to couples who had their first son. Today in Japan, kites 107．（fly）as part of a celebration, such as the beginning of a new year. And kite festivals are held each year in many parts of the country.
Kites have been used for scientific purposes（目的）in the western world. In 1752, Benjamin Franklin tied a key to a kite and flew it in a storm to find out that lightening（闪电）was a form of electricity. In the 1890s, Lawrence Hargrave 108．（invent）the box kite to test ideas about flight. From 1898 until 1933, the United States Weather Bureau（气象局）used box kites to collect weather data. The Wright brothers also experimented（试验） 109． kites. What they learnt helped them 110．（make）the first airplane flight in 1903.
十二
Cai Lun invented paper around 2000 years ago in China. It is 111． important invention. Before the invention of paper, people had to remember lots of information or write it on stones, wood, 112．（leaf）and so on. Today everyone in the world uses paper. With paper, we can make books and print newspapers. 113．（share）information is a lot easier 114． the help of paper. People use paper every day. Students do homework and keep a diary on paper. Paper is a great invention. Alan Turing was in London, England, in 1912. He 115．（attend）Cambridge University from 1931 to 1934. Turing was a mathematician and a computer scientist. Many people called Turing the father of computer science. He created the 116．（one）design for a modern computer. Turing wanted 117．（know）if a machine could think for itself and trick someone into believing they were having a conversation with another person. This became 118．（know）as the Turing test. In the test, a human talked to two other persons through a computer. One was a machine, and the other was a person. Still this idea 119．（use）today.
十三
According to some old Chinese stories, there once was 120． ancient emperor named Shennong. At that time, there was no medicine to treat illnesses. Many sick people could only wait for 121．（die）.
To save his people, Shennong decided 122． （find）and test out different plants. He and his men set out on a journey in search of medicinal plants.
Each time the team found a new plant, Shennong would taste it 123．（he）. Some plants made him feel 124．（sleep）, some caused him to have a stomachache, and some made him tremble（颤抖）all over. After Shennong searched and tested over a long time, he and his men discovered lots of medicinal plants.
As they continued their search, once the team found a strange plant 125． is new to them, it’s a huge plant 126． small yellow flowers. Shennong picked off one piece from the plant as usual. He said, “It looks like a medicinal plant. I have to test it, or some people may misuse it.”
Suddenly, Shennong’s face turned pale and he fell on the ground 127．（heavy）. Even after he 128．（give）the leaves from other medicinal plants, he still lost his life. People covered him with 129．（thousand）of flowers. From then on, they called him “the Emperor of Medicine”.
十四
On a warm June evening in 1609, Galileo, made the latest invention at that time—a telescope (望远镜).
That very night he not only worked out how 130． (make) it, he improved upon it as well. The telescope would be quite useful for keeping watching on 131． (enemy) in the war. The leaders of Venice spoke 132．(high) of it, but Galileo wasn’t satisfied and kept on working on it. Within a few months, he had a telescope that was even 133． (powerful).
One night as the moon rose, Galileo pointed his telescope 134． the sky. What he saw through the telescope 135． (surprise) him. The moon was not smooth as it appeared. He noticed other stars beside it changing positions every night. 136． he found the unexpected result, he went on studying about it. He wrote down what he saw in a book called The Starry Messenger. The books 137． (sell) out at once. Some people were very interested in his discoveries, but others didn’t. The people 138． lived in the 1600s weren’t quite ready for the discovery, 139． Galileo decided to build more telescopes to tell people about the truth. After that people began to see what they hadn’t been able to see before and they started to ask questions about the universe.
十五
You may think that complete wheels are necessary when it comes to bicycles, but one creative 140．(engineer) recent invention shows that two half wheels are just as good as one full wheel.
Sergii Gordieiev is 141． engineer and Internet star. He is 142． (know) for his wonderful inventions. Of these, his latest creation is undoubtedly the most eye-catching. His 143． (usual) bike has two half rear wheels (后车轮) instead of a complete one, and they work together to do the job of a normal one. As strange as it sounds, this crazy bike shows that two half wheels, when used 144． (correct), are just as good as one full wheel. The key 145． this invention is the timing of the split (分裂的) wheels. As one of two half rear wheels is in the air, the other half wheel lands on the ground to keep everything balanced. 146． a clever idea!
Gordieiev says that even if the wheel is perfect, as he tries to show 0.5+0.5=1, there’s really no good reason 147． (break) a perfectly good bicycle. From making the rear frame(后车架) of the bicycle longer to 148． (cut) a wheel in half and making sure they work together to carry out the function of a full wheel, you can’t imagine how much work he has put into the bike.
The engineer adds that he hopes to excite people’s 149． (interesting) in DIY through his example and encourage them to be creative.
十六
Inventions usually make a big 150． (difference) to people’s lives. Do you have any great inventions at home Do they help you a lot in your life or bring you much fun The most 151． (help) invention for kids is the reading pen. With the specially-designed pen, kids find it convenient and fun 152． (learn). Little kids can learn a lot, including story-telling, poems and music. They start learning by 153． (touch) the contents(内容) in the books with the pen. This way kids can learn by 154． (they). They are also great helpers for primary school students after school.
十七
Inventions play an important part all the time. In our 155． (day) life, we can see inventions everywhere. Even the 156． (small) inventions can make a big deal to our lives. The barcode (条形码) is one 157． the most useful inventions. If you want to know the information of the product, you can scan the barcode with your smartphone. But do you know 158． the barcode was invented Here is something about it. In the 159． (five) month of 1948, an owner of a small food store found it difficult to record the prices of his 160． (product). So he turned to the Drexel Institute of Technology for help. He wanted to find 161．way to solve the problem. The good news was that Bernard Silver 162． (take) up the challenge and began working on it. At last Bernard Silver and a group of 163． (he) students set up a barcode system to solve the problem. Now the invention is more and more 164． (wide) used in the world.
十八
Confucius is China’s most famous thinker and teacher. Today, people still follow Confucius’s lessons. He told us that we all have something worthy(值得的) to be learned. “Take a walk with any three people and at least one of them will have something 165． (teach) you.” Do you know the story of him
Confucius lived in the Kingdom of Lu during the Spring and Autumn Period. When Confucius was young, he visited many famous teachers and studied music, history, poetry and sports. At the age of 22, he became a teacher himself and started his own school. At that time only children from rich 166． (family) could go to school, but Confucius 167． (simple) believed everyone should go to school if they wanted to learn. In his life, he had over 3, 000 students. For more than 2,000 years, Confucius’s ideas 168． (be) popular in people’s lives. Most of his ideas 169． (write) down by his students. So people can still hear them today.
Now his ideas have gone far into east and south Asia because they are 170． (help) to people’s life and the society. Some of Confucius’s most famous sayings are, “A kind person should care for others.” and “Be strict with 171． (you), but be kind to others.”
十九
Look at the old man. He 172．（look）like the famous scientist Einstein. It is a robot which was 173．（invent）by American scientists. Although it has only a head and two shoulders, it can make different faces. Scientists also made many robots that are good at 174．（communicate）with people.
This kind of robot first 175．（appear）in America. It can not only know people’s feelings, but also guess people’s age. It even can make some simple human actions, such as 176．（shake）its hands.
Some scientists hope to make more robots with more actions just like human beings. They want to make more robots who are kind-hearted, understanding and 177．（care）about others. “It is very important to make such kinds of robots. We also hope they are as clever 178． us.” The famous scientist Hanson said.
But it is very hard to make such kinds of robots. 179． the cleverer the robots are, the more they will be refused. So the American scientists chose the head of the famous scientist Einstein. Because he was a 180．（peace）and kind-hearted old person. But this kind of robot is very expensive. It costs about 75 thousand dollars to make one Einstein robot. Hanson hopes one day 181． cost of making a robot can be only 200 dollars.
二十
Paper is 182． common thing in our daily life. It is 183． (make) from wood. It is used by people every day, 184． (especial) students, teachers and workers in the office. Do you know about its history
Paper, zhi, was a Chinese 185． (invent). 2,000 years ago, Chinese people invented paper-making. This zhi was made 186． silk and was very expensive. Only the emperor and rich people could afford to use it. 1,900 years ago, Cai Lun 187． (improve) the paper—making process. He made cheap jinzhi out of tree and old cloth. The improvement in paper-making spread zhi far and wide, and many different 188． (kind) of zhi were made 189． Chinese people. Xuan paper, a type of high quality rice paper, best shows the charm of 190． (tradition) Chinese painting and calligraphy(书法). 191． (late), Chinese zhi spread to the West via the Chinese Silk Road.