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2 . On May 22, 2021, people in China and around the world felt sad. China’s “father of hybrid rice(杂交水稻之父)” Yuan Longping died at 91 on this day.
Yuan spent his life researching hybrid rice, which ended hunger for millions of people not only in China, but around the world. Hybrid rice is grown in 57 percent of China’s rice fields. It feeds an extra 80 million people a year. It is also grown in over 40 countries, including India, the US and Brazil, etc.
Yuan grew up in a time of war and famine(饥荒). How to get enough to eat was a serious problem in China at that time. After he finished high school, he decided to study agriculture(农业). After seeing many people die of hunger during a serious famine that lasted from 1959 to 1961, he decided to study hybrid rice.
In 1973, he succeeded in growing the world’s first high-yield(高产的) hybrid rice. It could reach a yield of over 500 kg per mu, higher than the 300-kg yields from normal rice.
In 2019, he was awarded the Medal of the Republic, China’s highest state honour. In 2020, hybrid rice achieved 1,500 kilograms per mu in two growing seasons, setting a new world record. His team also started to research growing seawater rice in 2016. Their experiment succeeded in 2017.
Yuan once said he had two dreams. One was to enjoy the shade under rice crops that were taller than men. The other was that hybrid rice would be grown all over the world. I think his dreams might come true one day.
1. Yuan Longping helped people solve the food problem by ________.| A．developing the hybrid rice with his team |
| B．borrowing enough food from other countries |
| C．discovering another kind of food to eat |
| D．asking people to grow more rice in their fields |
| A．It is grown in over half of China’s rice fields. |
| B．It is grown all over the world at present. |
| C．Its yield is much higher than that of normal rice. |
| D．It can help people solve food problems. |
| A．300 kg per mu. | B．500 kg per mu. |
| C．750 kg per mu. | D．1,500 kg per mu. |
3 . This is my school. There are many trees and flowers. The teaching building is big and tall. There is a big playground in our school. It’s very nice to have it. After 4:30 in the afternoon, many students come to the playground to play football and some students play table tennis(乒乓球) in the table tennis room.
There are 1,200 students in 30 classes in our school. The students all like to study. The teachers in our school are very good. They help the students to study and sometimes play with them. All the students like them.
1. The teaching building is ________.| A．small | B．old | C．big and tall | D．new |
| A．flowers | B．a playground | C．students | D．teachers |
| A．45 | B．40 | C．75 | D．60 |
| A．their classrooms |
| B．their homes |
| C．the playground |
| D．the teaching building |
| A．Give the students lessons. |
| B．Cook food with the students. |
| C．Play with the students. |
| D．Help the students study. |
4 . Many people today like exercise in their free time. Some people like to run, and some like to walk. Others dance or play balls. They do different kinds of exercise. Why do people like exercising? It’s good for their health. And exercise helps make them tired, so they sleep better at night.
You may like to run. If you do, take care of your feet. Make sure you have the right shoes. Some people like to run on roads. So they must watch out for cars.
Walking is good exercise. You may take a long walk in the park. It’s more fun if you don’t walk alone. Walk with a friend. The two of you may have a great time.
Some people like to swim. But others don’t like to go into the water. If you like this kind of exercise, make sure that someone is watching you. You must always take care when you are in the water. Jumping a rope (跳绳) or riding a bike is also good exercise. There are many other kinds of exercise. Find out what you like. You may need help at first. Some people often do exercise, and they can help you.
Do exercise every day, and you will know what it makes you feel.
1. If you want to run for exercise, you should ________.| A．have the right shoes | B．run fast on roads | C．go with a friend |
| A．5 | B．6 | C．7 |
A． | B． | C． |
| A．Find out what you like. | B．Ask for help at first. | C．Never eat unhealthy food. |
5 . Do you like traveling? More and more students like riding bikes to travel on the road. But it may be dangerous on your trip. For your own safety, do the following things.
Wear a bike helmet（头盔）and it can protect your head. Look for a helmet that fits you well. Even the best, most expensive helmet won’t protect you if it doesn’t fit.
Wear the right clothes. They can make you feel better. And they can also protect you. Bright-colored clothes help people see you clearly—even in the daytime. Don’t wear dark-colored clothes like black or brown while riding a bike.
Keep the rules of the road while riding a bike. Always ride on the right side of the street in the same direction（方向）. Never change your direction without first looking behind you. And don’t ride too closely to the cars—the cars may stop and the door may open suddenly! Finally, don’t wear earphones while riding a bike, you need to hear what’s going on around you.
If you follow the above advice, you’ll be safe riding on the road.
1. When you ride on the road, it’s best to wear ________.| A．green clothes | B．black clothes | C．brown clothes |
| A．Four. | B．Three. | C．Two. |
| A．You’d better wear a bike helmet when you travel by bike. |
| B．Bright-colored clothes can help people find you clearly. |
| C．You can wear earphones while you are riding a bike. |
A． | B． | C． |
6 . Every thirty seconds there is an earthquake in the world. Some of these earthquakes are so weak that people can’t feel them. But some of them are very serious and many people get hurt or die in them. Do you know what cause earthquakes?
The earth’s surface (表面) has many pieces. These pieces are always moving. When two pieces move past each other, there is an earthquake. Scientists are trying to predict (预测) big earthquakes, but it’s very hard. Do you know how to protect yourself during an earthquake? Here are some ways. You should remember them.
If you are inside the door.
◆Quickly move under a desk or along a wall. It will protect you from falling things. Don’t run out of the door.
◆Keep away from windows.
◆Turn off lights.
◆Don’t get into a lift. If you are in a lift, get out as quickly as possible.
If you are outside
◆Don’t stay near tall buildings and trees. Things may fall on you.
◆Be careful of fallen power lines.
◆Lie on the ground in clear areas until the shaking stops.
1. How often does an earthquake happen in the world?| A．Once every thirty seconds. | B．Once every thirty minutes. |
| C．Once every three hours. | D．Once every thirteen seconds. |
| A．Because some of them are so weak. |
| B．Because some of them are so serious. |
| C．Because scientists can predict earthquakes. |
| D．Because people know what to do during an earthquake. |
| A．Near the window. | B．Along the wall. | C．Outside the door. | D．Near the door. |
| A．you don’t be afraid when an earthquake happens |
| B．you’d better lie on the ground in clear areas until the shaking stops |
| C．you should look for your family after the earthquake |
| D．you should not rebuild your homes after the earthquake |
| A．how to predict an earthquake | B．how to save people after an earthquake |
| C．what to do before an earthquake | D．how to protect ourselves during an earthquake |
7 . Some people think riding bicycles isn’t popular. They aren’t interested in it. So fewer and fewer people ride bicycles in the city. Nowadays some office workers usually go to work by car. Most students take the bus or the subway to go to school.
But I don’t think so. I think riding bicycles is good for my health. It has many benefits (益处). Firstly, when I am riding a bicycle, my whole body is exercising all the time. It is a good way to keep fit. Usually most office workers are busy with their things and most students are busy with their lessons, so they have no time to do sports. So riding bicycles is a good way to keep healthy for them.
Secondly, riding bicycles does good to our environment (环境). As we know, driving cars can pollute (污染) air. It makes the temperature high day by day. If we go to work by bike, the air will become cleaner than before. We can also save money at the same time. Why not enjoy doing it?
Riding bicycles is good for our health and the environment. We should all ride bicycles.
1. How do some office workers go to work?| A．By subway. | B．By bus. | C．By car. | D．On foot. |
| A．is popular | B．does good to our health |
| C．makes the ground cleaner | D．saves time |
| A．the best way | B．a good way | C．the only way | D．a bad way |
| A．To ride bicycles. | B．To drive cars. | C．To save money. | D．To save time. |
| A．How to Ride Bicycles | B．Do Exercise | C．How to Keep healthy | D．Benefits of Cycling |
8 . My holiday is coming. Yesterday I asked my friends about the best way to travel in the USA. They said the best way was to go by bus and told me the reasons.
To fly, of course, is the fastest way, but you can’t see anything during your stay in the air but the blue sky and white clouds. So it’s not very interesting to you. And the cost is very high.
To travel by train is relaxing, because you can walk and buy food and drinks on it. You can also see cities and the countryside through the windows. But sometimes it’s crowded on the train. And it’s hard to buy train tickets during holidays.
To travel by bus is easy, cheap and convenient, though not so fast as travelling by plane or so comfortable as by train. You can find buses almost in every city, big or small. That makes travel easy.
I took their advice. So I decided to take a bus to the south coast for an interesting trip.
1. How many ways to travel are mentioned in the passage?| A．Two. | B．Three. | C．Four. | D．Five. |
| A．you can buy food and drinks on it | B．you can walk everywhere on it |
| C．you can buy tickets easily | D．you can talk loudly on it |
| A．by air | B．by train | C．by bus | D．by ship |
| A．You can’t see anything during your stay in the air. |
| B．The fastest way to travel is by plane. |
| C．You can enjoy beautiful sights(风景) through the windows by train. |
| D．Travelling by bus is not so comfortable as by train. |
9 . 5G is coming. 5G is the 5th generation(代) network. It is a new network after 1 G, 2 G, 3 G and 4G. It can connect everyone and everything together. 5G networks will cover many cities in China soon. 5G means super-fast data speed. One can download a two-hour movie for fewer than 10 seconds, and it is making our lives more and more convenient.
5G will make self-driving cars possible. For safety, self-driving cars need super-fast data transmission(传输) to communicate with their nearby environment. 5G is just what makes self-driving cars achieve(达到) this. Even airplanes will become “smart” in the near future. Passengers will be able to use 5G networks in the air to connect to the Internet and can order for food and drinks.
5G will be a big help for students who take online classes. Many people live in poor areas.in the world where there are no schools. But with 5G, this will change. Students all over the world will be able to see places like the Great Wall without leaving their rooms.
It will be also easier for doctors to treat patients remotely by 5G. It means caring for patients from far away.
The facts listed above are only a part of what is 5G. With 5G, many things do not seem like dreams anymore. Now let’s welcome the coming of 5G.
1. How long may it take to download a two-hour movie with 5G?| A．15 seconds. | B．8 seconds. | C．10 minutes. | D．2 hours. |
| A．快速地 | B．高效地 | C．远程地 | D．科学地 |
| A．self-driving cars | B．“smart” airplanes | C．online classes | D．hospitals without doctors |
| A．to be used freely | B．super-fast data speed |
| C．to connect everyone and everything together | D．to make life more convenient than 4G |
| A．How to use 5G. | B．5G is not safe. |
| C．5G can change our life in the future. | D．5G can help poor students. |
10 . Plants are very important. It is because plants can make food from air, water and sunlight. Animals and man cannot make food from air, water or sunlight.
Animals can get their food by eating plants and other animals. Man gets his food by eating plants and animals, too. So animals and man need plants to live. This is why there are so many plants around us. There are two kinds of plants: flowering plants and non-flowering(无花) plants.
Almost all the plants around us are flowers and fruit. Non-flowering plants don’t grow flowers. You can’t see many non-flowering plants around you. If you look carefully at the plants around you, you’ll find that there are so many kinds of plants. Some plants are very big and others are very small. Most of them are green. We can live on the earth because of the plants around us.
1. We need many plants around us because ________.| A．plants can grow easily |
| B．plants are green |
| C．we can get what we need from plants |
| D．we like all kinds of plants |
| A．Wood. | B．Bread. | C．Cabbage. | D．soil. |
| A．Food from Plants | B．Plants Make Food | C．Man and Animals | D．Plants around Us |
