In many countries, people are encouraged to buy electric cars. It is said that driving an electric car is good for the environment. But is that true? The University of Minnesota recently studied emissions (排放物) from different cars. The scientists found that sometimes, electric cars are more harmful than petrol (汽油) cars.
Surprising? Well, please pay attention to the word “sometimes”. Electric cars are supposed to be clean. The problem lies in the power that is used to charge them. If the power comes from wind or solar energy, electric cars will cause little pollution. However, if the power is produced from coal, they will be very harmful. According to the study, emissions from these cars kill about 3,000 people a year. However, pollution caused by petrol cars only leads to 880 deaths a year.
In fact, sales people are not lying when they say electric cars are clean. However, they are right only when the power used to charge their cars is also clean.
So how clean electric cars are depends on what its electricity comes from. In France, more than half of the power comes from nuclear (核) stations. Electric cars there should be as clean as they are marketed to be. In many developing countries, however, electricity mainly comes from coal. India, for example, depends on coal for 61 percent of its power. Only two percent of electricity comes from nuclear energy. In countries like India electric cars are not clean at all.
1. Why are people in many countries encouraged to buy electric cars? Because they think electric cars2. How are electric cars whose power come from wind or solar energy?
If the power of electric cars comes from wind or solar energy, it will cause
3. How many people may be killed a year by the emissions from the cars whose power is produced by coal?
Emissions from the cars whose power is produced by coal can kill about
4. According to the passage, in which country the electric cars are cleaner than many developing countries?
Electric cars from
5. Where may power of electric cars come from? (至少写出文中提到的两种能源)
2 . Oil becomes more expensive and difficult to find. It’s becoming less and less, too. Scientists are looking for other energies, including solar (太阳能), wind and even nuclear (核能) power.
Solar boards (板) catch energy from the sun and turn it into electricity. One of the world’s largest solar power stations is in Germany. What’s more, solar energy produces no waste.
Wind, the fastest growing kind of energy, is another way of collecting energy from the sun. As we all know, Holland is famous for its wind electricity. And it’s also called Windmill Kingdom (风车之国).
Nuclear power produces electricity more cheaply with no carbon (碳) waste. And more countries join the nuclear group. China has built twenty-two nuclear power stations, too.
1. Which is NOT the reason for scientists to look for other energies?| A．Oil becomes more expensive. | B．There is less oil. |
| C．People don’t like using oil. | D．It’s difficult to find oil. |
| A．From the earth. | B．From the sun. | C．From the moon. | D．From the stars. |
| A．Germany | B．China | C．America | D．Holland |
| A．Solar. | B．Wind. | C．Ocean. | D．Nuclear. |
| A．Germany has one of the world’s largest solar power stations. |
| B．Nuclear power produces more carbon waste. |
| C．Wind is the slowest growing kind of energy. |
| D．There are 20 nuclear power stations in China. |
3 . There are many different kinds of jobs for people to do in the world. Now there is a special job. Who does the special job? The workers are not men but dogs. These dogs are like the eyes of special people. Who are the special people? They can’t see with their eyes. So we call these dogs “seeing eye dogs”.
How long should these dogs usually learn? They need to learn for two or three years. And then they live with the special people. Their job is to help them walk everywhere. These dogs know how to help the special people walk at the crossing of the streets. Cars and bikes in the streets are dangerous, but these dogs can help the special people a lot.
Sometimes you can see these dogs playing with the special people. Just like other dogs, these dogs are lovely and smart. Are they dangerous? No, they are kind and friendly. They work hard and they can do a lot of things. With the help of these dogs, the special people’s lives become more convenient. They are the special people’s good friends and helpers.
1. What are special for the special people?| A．Their mouths. | B．Their noses. | C．Their eyes. | D．Their ears. |
| A．By telling a joke. | B．By asking a question. |
| C．By using an old saying. | D．By giving an example. |
| A．Study. | B．Play. | C．Walk. | D．Work. |
| A．艰难的 | B．痛苦的 | C．方便的 | D．复杂的 |
| A．Special People | B．A Special Job | C．A Special World | D．Special Animals |
4 . Each year, hundreds of people climb Mount Qomolangma. Most of them do it to achieve a personal dream. But for some, they push themselves up the mountain for other purposes.
On September 24, 2021, Guo Yongjie and the other seven members of a team set out at a height of 5,800 meters. They reached a height of around 6, 200 meters several hours later. This was the second time the Chinese team had climbed Mount Qomolangma in 2021, following their first trip in August.
“Desideria himalayensis,” Guo cried as soon as he saw a plant. He took pictures of the plant from all directions and recorded its height and location right away. It was the first plant they found at a height above 6,000 meters. What made Guo more excited was that some of the siliques (角果) of the plant had divided, which meant the team had a chance to collect its seeds (种子).
To do research, a complete seed sample (样本) needs at least 2,500 seeds. However, since seeds are scarce at high points of Mount Qomolangma, it is hard to collect 2,500 seeds. So the team could only try to collect as many as possible.
In July 2022, after being kept in very low temperatures for nearly a year, the seeds collected on Mount Qomolangina were taken out to test if they were alive. And soon all the seeds germinated (发芽). It means that China has successfully collected and kept those valuable seeds.
A seed carries the hope of life from the moment it comes into being. For China, those seeds have brought more hope to its plant protection.
据短文内容，选择最佳答案。
1. Which is TRUE about Guo’s second trip to Mount Qomolangma in 2021?
| A．He walked 6, 200 meters during the trip. | B．There were eight members in his team. |
| C．He left for the mountain in June. | D．He finally achieved his personal dream. |
| A．he took many photos of the plant | B．he knew where the plant was |
| C．he might be able to get seeds of the plant | D．he was the first person to find the plant |
| A．small in number | B．bright in color |
| C．strange in shape | D．short in height |
| A．The seeds were collected in July 2022. |
| B．The seeds kept alive in low temperatures. |
| C．The seeds began to grow after being kept for six months. |
| D．More seeds have been found on Mount Qomolangma. |
| A．How plants grow on Mount Qomolangua |
| B．Why people climb Mount Qomolangma |
| C．Story behind the seeds found on Mount Qomolangma |
| D．Searching for treasure on Mount Qomolangrma |
5 . Blood transfusions（输血）have become a real life saver in modern medicine. But not so long ago, blood transfusions were dangerous and killed as many people as they saved. That is, until 1901, when an Austrian scientist discovered that humans do not all have the same blood type. His research showed that humans, in fact, have one of four blood types A, B, AB and O.
Before the discovery of the four blood types, it was believed that you could give the blood of any person to any other person. Giving a person the wrong type of blood often leads to death because the two different blood types fight each other. When giving a blood transfusion, doctors need to know the blood types of the donor（输血者）and the recipient（受血者）.
No matter where you live on this planet, your blood will fall into one of the four types. Some blood types are rarer than others. In European cultures, the most common blood type is O. Among Asian populations, the B blood type is common, while it is very rare in European populations.
People with type O blood are “universal（万能的）donors”. Their blood can be given safely to people from any of the other three groups. People with type AB blood are “universal recipients”. They can receive blood from any of the other three groups.
1. Why is blood transfusion dangerous before the discovery of the four blood types? ________| A．Because two different blood types fight each other. |
| B．Because there is no modern medicine. |
| C．Because there are fewer blood donors. |
| D．Because people are from different cultures. |
| A．the O blood type | B．our planet |
| C．B blood type | D．the most common blood type |
| A．Because the type O blood is the most common. |
| B．Because the type O blood is rare. |
| C．Because people with type O blood are kind and friendly. |
| D．Because the people of the other three groups can receive type O blood safely. |
| A．The blood transfusion is always safe. |
| B．In 1901, an Austrian scientist discovered the four blood types. |
| C．Doctors don’t need to know the blood type before a blood transfusion. |
| D．People could receive blood from any person. |
| A．Blood transfusions are dangerous. |
| B．Blood transfusions are always safe. |
| C．Blood types affect blood transfusion. |
| D．Four blood types. |
6 . From The Vikings
Now let me tell you something about Vikings.
| A．When visiting museum we can see how people lived in Viking times. |
| B．such as clothes, food, plates and many other useful things. |
| C．Because they could find jobs easily in towns. |
| D．Most Vikings stayed in their home, |
| E．So the ships could arrive. |
7 . “Early to bed and early to rise makes a man healthy, wealthy and wise!” This is an old English saying. It means that when we go to bed early, we can get up early the next morning. Then we will become healthy, rich and clever.
This is true. To be healthy, we must have enough sleep. Experts say that adults should get seven to eight hours sleep a night. Teenagers need nine to ten hours. And school-aged children may need more than ten hours of sleep. Children who do not have enough sleep can’t do their work very well. They won’t be wise and they may become unhealthy. ①________.
1. The underlined word “rise” means “________” in Chinese.| A．升起 | B．增加 | C．起床 | D．站起 |
| A．Experts. | B．Adults. | C．Teenagers. | D．School-aged children. |
| A．can’t study well | B．can’t eat well | C．will be wealthy | D．will be active in class |
| A．Enough sleep is important. | B．Sleep well, work well |
| C．Only children need enough sleep. | D．It’s good for us to go to bed early and rise early. |
| A．Please sleep at least 10 hours. | B．Enough sleep is important for every one. |
| C．This old English saying is not true. | D．If you want to be rich, please get enough sleep. |
8 . Water is important for our body and health. It is important because almost all parts of the human body have water. And about 60%-70% of our body is made from water. ①If there is no enough water, our body _________ work properly. ②We can get it through several ways, such as having fruit, vegetables, tea and milk. How much water do we need every day? It is different every day. It depends on our daily activities and the temperature of the day. Generally speaking, an adult needs about eight cups of water every day. ③But when we do some exercise or when the temperature is high, __________.
1. 请根据文意在①句空白处填入一个合适的词，使句意完整，符合逻辑。2. 请在文中找出②句下划线单词“it”所指代的一个词。
3. 请根据文意，补全③句，使句意完整、语法正确、符合逻辑。
But when we do some exercise or when the temperature is high,
4. 请找出本文的主题句。
5. 连词成句并回答问题。water, how, does, much, an adult, everyday, need?
A连词成句：
B回答问题（不超过三个词）：
improve laugh serious discovery by |
There is an English saying: “Laughter(笑) is the best medicine.” Until recently, few people took the saying
Becky was in the bathroom. She was brushing her
“Who...who are you?” Becky’s voice was
“I’m a drop of water. Do you know
“From the tap, I think,” said Becky.
“Yes. But a few days ago, I was in a cloud. Then I dropped into a river. The river
“Get cleaned up?” Becky asked.
“Yes. I was
“Again?”
“Yes. So remember not
| A．teeth | B．tooth | C．feet | D．foot |
| A．waste | B．wasting | C．wastes | D．wasted |
| A．sweet | B．normal | C．tired | D．weak |
| A．which | B．what | C．where | D．why |
| A．carried | B．cheated | C．covered | D．copied |
| A．dry | B．wet | C．dirty | D．clean |
| A．in | B．on | C．under | D．near |
| A．after | B．until | C．though | D．or |
| A．through | B．over | C．across | D．back |
| A．pollutes | B．polluting | C．to pollute | D．polluted |
