What are you holding in your hand while you are taking the examination? Right. A pen.
Though it is small, the pen has changed the history, improved the trade of countries, recorded events, carried news, and done far more work for human beings than all other tools.
Progress without it would have been almost impossible. The invention of the wheels, the introduction of steam engine(蒸汽机), the use of electricity, all these have changed the lives of millions of people, but the pen has done more. It has taken away mountains, and it has prepared the way for all progress and development of the society.
In the past the pen did all the work if you wanted to keep any writing for some time. The lawyers took up their pens and wrote the law of the country from the days when papyrus(纸莎草纸) was first used. The most famous letters in the world were written with a pen. It was with a pen that the greatest thinkers of all time wrote down their thoughts.
The pen is very utilitarian. We cannot sign a bill or write a letter or buy a house without our pen. An agreement is worthless till our name is written with a pen. The writers encourage the world with it. The students take their examinations with it as well.
Our coming into the world is recorded with a pen. Before we have been at school, our name is written on the name list with a pen. We cannot be married till we have signed. A pen records the important events in our life.
Let us remember that we hold in our hand the most powerful instrument which man owns. The pen is a magic tool. Whenever you use it, enjoy it.
1. What is the writer trying to do in this passage?| A．Describe what a pen looks like. | B．Introduce the history of the pen. |
| C．Advise people to prepare a new pen. | D．Show the importance of the pen. |
| A．explain the use of electricity | B．lower the students’ scores |
| C．stop the social development | D．change the law of the country |
| A．before their thoughts were changed | B．when papyrus was first used |
| C．as soon as they recorded their names | D．after they took an important exam |
| A．cheap | B．boring | C．special | D．useful |
| A．A Powerful Tool | B．An Important Law | C．A Valuable Record | D．An Exciting Event |
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Do you ever find yourself standing in front of rubbish bins, not sure whether the piece of waste in your hand is recyclable or not? To solve this problem, four Hong Kong high school students have invented a smart rubbish bin that uses AI to sort the waste.
Connected to a computer, the bin uses a camera to tell the kind of the waste it receives and sorts it into plastic, paper, glass, or other kinds.
The idea of the smart bin was born two years ago, when the students were in Grade Ten.
“All the bins were full and there was even rubbish on the mountain,” the students recalled. “Every weekend, we had to join the villagers in picking up the waste.”
“Our bin is now in its third generation.
| A．The students named the bin Waste Collection Point. |
| B．Before graduation（毕业），we hope it can be widely used in the city. |
| C．At that time, people from the city crowded into their village because of the COVID-19. |
| D．The students decided to develop a special recycling bin that would encourage people to protect the environment. |
| E．To make sure the bin can sort waste correctly, the team tested every product in the school shop and took at least 500 pictures of each one. |
A boy called Bishop Curry has invented a life-saving gadget（装置）.
Bishop Curry is a student at a primary school in McKinney, Texas.
The gadget can monitor the temperature inside the car. If the temperature increases over a certain level, the gadget can cool the air and give warnings（警告）to parents through the antenna（天线）.
According to the report in the USA, since 1998, 712 children who were left in the car have been dead in the United States. 37 children are killed every year on average（平均）.
| A．32% of them are young children under the age of 1. |
| B．It can prevent children from dying in a car. |
| C．Bishop Curry said he invented the machine because of an unfortunate（不幸的）incident. |
| D．Every year, some careless parents leave children in their cars by accident. |
| E．Although the gadget is still only a model, Bishop Curry and his father have raised $ 27,000 for the idea. |
DNA is the genetic (遗传的) material found in all living things. It’s unique (独一无二的), so it’s usually used to identify (确认) people or animals.
In their study, the scientists said they can also use the same way to identify other pets based on their hair, such as dogs. So it will be easier for the police to catch criminals.
| A．There is usually pet hair at crime scenes. |
| B．In the past, scientists couldn’t do that. |
| C．They find DNA in cats’ hair and make copies of it. |
| D．Scientist from the University of Leicester, UK, found a new way. |
| E．However, it’s difficult to see the most unique parts because they are too small. |
| F．DNA can be found in blood, hair, skin (皮肤) and many other parts of the body. |
