Tuyển Cộng tác viên Hoc24 nhiệm kì 26 tại đây: https://forms.gle/dK3zGK3LHFrgvTkJ6
Các câu hỏi tương tự
A Conditional sentences type 1 (Câu điều kiện loại 1) 1. I cant see anything without my glasses,If I2. Only when you tell him will he perfect his duties.If you3.We cant be successful without Peters ideas.Unless4. You cant go shopping unless you have money.If you5. Unless you watch TV every day, you wont know much new news.If you6. If the work is finished by lunch time, you can meet me.Should7. Unless it rains soon, we will lack water.If it8. Im willing to help you when you need me.Should9. I can...
Đọc tiếp
A Conditional sentences type 1 (Câu điều kiện loại 1) 1. I can't see anything without my glasses,If I2. Only when you tell him will he perfect his duties.If you3.We can't be successful without Peter's ideas.Unless4. You can't go shopping unless you have money.If you5. Unless you watch TV every day, you won't know much new news.If you6. If the work is finished by lunch time, you can meet me.Should7. Unless it rains soon, we will lack water.If it8. I'm willing to help you when you need me.Should9. I can't see you tomorrow. I have to visit my mother.I10. I can't let you go because you don't have your own identification.If you
1) You should bring along a raincoat. It might rain In case 2) Dont expect to be rich without working hard Unless 3)This famous picture is worth thousands of puonds. It was damaged during the war This famous picture 4) There is no life on the other planets because there is no air and water there If 5) Is there a taxi coming now? asked my friend My friend asked me 6) the cafr was crowded of people but we found a table Although
Đọc tiếp
1) You should bring along a raincoat. It might rain
=> In case
2) Don't expect to be rich without working hard
=> Unless
3)This famous picture is worth thousands of puonds. It was damaged during the war
=> This famous picture
4) There is no life on the other planets because there is no air and water there
=> If
5) " Is there a taxi coming now?" asked my friend
=> My friend asked me
6) the cafr was crowded of people but we found a table
=> Although
Viết lại câu: 1-We can't live without water.
=> If there weren't................................
2-They are not engineers,so they can't repair the machine.
=>If.......................................................................................
Use the words given to fill in the blanks. There is one extra word that you do not need to use.down – air – quickly – about – save - dirty – important – pollute – growWe all are destroying the Earth. The seas and rivers are too (1).......................... to swim in. There is so much smoke in the (2) ................................ that it is unhealthy to live in many of the worlds cities. In one well-known city, for example, poisonous gases from car (3) ............................. the air...
Đọc tiếp
Use the words given to fill in the blanks. There is one extra word that you do not need to use.
down – air – quickly – about – save - dirty – important – pollute – grow
We all are destroying the Earth. The seas and rivers are too (1).......................... to swim in. There is so much smoke in the (2) ................................ that it is unhealthy to live in many of the world's cities. In one well-known city, for example, poisonous gases from car (3) ............................. the air so much that policemen have to wear oxygen masks. We have cut (4)......................... so many trees that there are now vast areas of wasteland all over the world. As a result, farmers in parts of Africa cannot (5) ......................... enough to eat. In certain countries in Asia there is so little rice. Moreover, we do not take enough care of the countryside. Wild animals are (6) ............................. disappearing. For instance, tigers are rare in India now. Because we have killed too many for them to survive. However, it is not so simple to talk (7) .............................. the problem. We must act now before it is too late to do anything about it. Join us now. (8) ..................the Earth.
Almost all our energy comes from oil, coal, and natural gas. We call them fossil fuels. The earth’s fossil fuels are running out. What will happen when there is no coal, oil and gas on earth? Scientists are trying to find and use other alternative sources of energy. We can use energy from the sun, the wind, and the water.
Solar energy is unlimited. The sun supplies all the energy used to grow plants, to evaporate water for rain, and to maintain the temperature of the planet. All are nec...
Đọc tiếp
Almost all our energy comes from oil, coal, and natural gas. We call them fossil fuels. The earth’s fossil fuels are running out. What will happen when there is no coal, oil and gas on earth? Scientists are trying to find and use other alternative sources of energy. We can use energy from the sun, the wind, and the water. Solar energy is unlimited. The sun supplies all the energy used to grow plants, to evaporate water for rain, and to maintain the temperature of the planet. All are necessary for human life. If we are able to collect solar energy, we will be sure to have this abundant source of power. Another source of energy from nature is the wind which is clean and plentiful. Energy from the wind has been used for centuries to move ships, grind grain, pump water and do other forms of work. In recent time, wind has been used to generate electricity. Water can also provide power. For a long time, people have used water to power machines. Some early uses of water were to mill grain, saw wood and power machinery for the textile industry. Today water is mostly used to generate electricity. 28. The fossil fuels on earth are ....................... A. unlimited B. being used up C. renewable D. not uesd now 29. Solar energy means the power from the ............................. A. fossil fuel B. temperature C. electricity D. sun 30. The word “abundant” in the passage is closest in meaning to ............................ A. necessary B. limited C. plentiful D. natural 31. Centuries ago, people used wind power to ........................... A. get water from underground B. grow plants C. maintain the earth’s temperature D. generate electricity 32. Nowadays water energy is mainly used to ................................ A. power machine B. mill grain C. saw wood D. generate electricity
Use the words given to fill in the blanks. air * too * dirty * grow * down * result * about * pollute * quickly * survive We all are destroying the Earth. The seas and rivers are too (41) …………………to swim in. There is so much smoke in the (42) …………………that it is unhealthy to live in many of the world’s cities. In one well-known city, for example, poisonous gases from car (43) …………………the air so much that policemen have to wear o...
Đọc tiếp
Use the words given to fill in the blanks.
air * too * dirty * grow * down * result * about * pollute * quickly * survive
|
We all are destroying the Earth. The seas and rivers are too (41) …………………to swim in. There is so much smoke in the (42) …………………that it is unhealthy to live in many of the world’s cities. In one well-known city, for example, poisonous gases from car (43) …………………the air so much that policemen have to wear oxygen masks. We have cut (44) …………………so many trees that there are now vast areas of wasteland all over the world. As a (45) …………………, farmers in parts of Africa can not (46) …………………enough to eat. In certain countries in Asia there is so little rice. Moreover, we do not take enough care of the countryside. Wild animals are (47) …………………disappearing. For instance, tigers are rare in India now. Because we have killed (48) …………………many for them to (49) …………………. However, it is not so simple to talk (50) …………………the problem. We must act now before it is too late to do anything about it. Join us now. Save the Earth.
There are many kinds of pollution. Air, water, and land can be polluted. Some pollution is caused by nature, such as floods, forest fires, and volcanoes. People are the major cause of pollution. We pollute the air with our cars, homes, and factories. Smoke from factories and car exhaust makes the air looks gray and smoggy. Some people cannot go outside when the air is very bad! We pollute the water by dumping garbage and chemicals in the water. Plants and animals die because of the pollution in...
Đọc tiếp
There are many kinds of pollution. Air, water, and land can be polluted. Some pollution is caused by nature, such as floods, forest fires, and volcanoes. People are the major cause of pollution. We pollute the air with our cars, homes, and factories. Smoke from factories and car exhaust makes the air looks gray and smoggy. Some people cannot go outside when the air is very bad! We pollute the water by dumping garbage and chemicals in the water. Plants and animals die because of the pollution in the water. We pollute the soil with chemicals and garbage. We harm the land by cutting down trees in the forest, especially to build roads and new houses without careful planning and thinking.
The only way to save our environment is to think about pollution. How can you stop or limit pollution? How do we protect our environment? Conservation is one way to protect our environment. Conservation is the wise use and protection of our environment. We can control water pollution by not producing as much waste and by proper disposal of sewage and garbage. We can take care of recreation land by cleaning up after ourselves and not causing more pollution. Carpooling and public transportation will help reduce air pollution.
Recycling is a type of conservation. Recycling is reusing items over again or in a new way. Recycling can help US conserve our natural resources so they will last many more years.
A. Find the word in bold in the passage that means:
1. the protection of the natural environment …………..
2. have a bad effect on something …………..
3. a large amount of water covering an area that is usually dry …………..
4. sharing a car ride with other people …………..
5. waste gases that come out of an engine …………..
6. the process of making air, water, soil, etc. dirty …………..
7. get rid of …………..
Chia động từ
1.I was just about (leave) the office when the phone rang.
2. "Where is Jane?" "Down stair sir". "She (greet) the guests."
3.I can't help (feel) sorry for the hungry children. If only there (be) peace in the world.
Xem chi tiết
Good evening. Welcome to our Science for Fun Program. This week, we’ve received a lot of questions asking about life on the moon. We’ve talked to some experts and this is what we’ve found out. There is no water or air on the moon. It is all silent because there is no air. Of course, there will be no music, no sounds. There are no rivers and no lakes. At night, it is very cold. The temperature goes down 1510C below zero. But during the day the temperature rises to 100 0C above zero.There are grea...
Đọc tiếp
Good evening. Welcome to our Science for Fun Program. This week, we’ve received a lot of questions asking about life on the moon. We’ve talked to some experts and this is what we’ve found out. There is no water or air on the moon. It is all silent because there is no air. Of course, there will be no music, no sounds. There are no rivers and no lakes. At night, it is very cold. The temperature goes down 1510C below zero. But during the day the temperature rises to 100 0C above zero.
There are great round holes on the moon. They look like big lakes. They are called craters. There are more than 30,000 craters on the moon. There are also high mountains. The highest mountains on the moon are about 26,000 feet or 8,000 meters high.
And here is something very interesting to know: on the moon you weigh one sixth of what you weigh on earth. If you weigh 50 kilos, on the moon you will weigh only a little more than 8 kilos. You will be able to jump very high, even higher than an Olympic Champion. You can take very long steps as well. And … may be you want won’t sleep very well because one day on the moon lasts for 2 weeks.
So, is there life on the moon? I’ll leave the question for you to answer yourself.
……16. There is no air on the moon.
……17. There are rivers and lakes on the moon.
……18. There are no sounds on the moon.
……19. It is very cold at night on the moon.
……20. During the day the temperature is even lower.
……21. There are great round holes on the moon.
……22. There are no mountains on the moon.
……23. You will weigh 8 kilos heavier on the moon.
……24. You will be able to jump very high on the moon.
……25. One day on the moon lasts for two weeks.