K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

Colds and flu are caused by viruses. The infections are contagious, passed on by tiny droplets and hand contact. There are hundreds of different types of virus that can cause cold, which explains why children get repeated colds. Flu is caused by the influenza virus. There are three major types: A (often the cause of flu epidemics), B and C. The flu virus is constantly changing its structure, so new strains appear each year. We don’t have immunity to the new strains, which is why we can catch flu repeatedly. Anyone can catch a cold or flu. The peak season for colds is the colder winter months, not only because of the weather but because central heating dries out the normally moist nasal mucosa-an important defense against invading viruses. However, you can catch a cold at any time of the year; one particular type of cold virus thrives in the summer. Flu rarely occurs outside November to February in the UK. A cold causes a stuffy or runny nose, sneezing, sore throat, cough, mild fever and tiredness, lasting from two to four days. Flu is more severe with a high fever (usually 39oC or above), chills, headache, intense muscle pains, exhaustion, loss of  appetites, cough and sometimes a blocked nose and sore throat. It may last a week or more and possible complications include pneumonia. Most cold don’t last long and need no specific treatment other than painkillers and simple measures such as decongestant rubs or vaporizers. Antibiotics are of no benefit. Zinc supplements may help to settle a cold more quickly. Children with flu can be given similar treatments, with lots of rest, medicine to bring down any fever and plenty of fluids to avoid dehydration. Lowering the temperature in the room can also be helpful when someone has a fever. Specific antiviral treatments for flu are now available, but generally these are only given to those at high risk of flu complications.

1. What are cold and flu caused by?

 

 …………………………………………………………………………

2. Why do children get repeated colds?

 

  ……………………………………………………………………………

3. How many influenza viruses is flu caused by? What are they?

 

  ………………………………………………………………………………………………………….

4. Who can catch a cold or flu?

 

  …………………………………………………………………………………………………………..

5. Which season do people usually get cold the most in the year?

 

 ……………………………………………………………………………………………………………

6. What symptoms do colds often cause?

 

  ………………………………………………………………………………………………………………..

7. How many days does a cold last?

 

  ………………………………………………………………………………………………………………………..

8. What symptoms does flu often cause?

 

  ……………………………………………………………………………………………………………………………

9. How long does flu last?

 

……………………………………………………………………………………………………………………………..

10. When someone gets colds, what measures should be used instead of painkillers?

 

 ………………………………………………………………………………………………………………………..

 
1
27 tháng 1 2023

1 By viruses

2 Because there are hundred types of viruses that can cause cold

3 There are three: A (often the cause of flu epidemics), B and C

4 Anyone can catch a cold or flu

5 Winter

6 A cold causes a stuffy or runny nose, sneezing, sore throat, cough, mild fever and tiredness

7  It lasts from two to four days.

8 Flu is more severe with a high fever (usually 39oC or above), chills, headache, intense muscle pains, exhaustion, loss of  appetites, cough and sometimes a blocked nose and sore throat.

9 It may last a week or more

10 Decongestant rubs or vaporizes

Read the passage and answer the questionsTHE BEST TIME FOR APPLESIt was the first lesson after the summer holidays at a small school in England. The lesson was about the seasons of the year. "There are four seasons in the year", said the teacher. "They are Spring, Summer, Autumn and Winter. In Spring it is warm and everything begins to grow. In Summer it is hot and there are many flowers in the fields and gardens. In Autumn, there are many vegetables and much fruit. Everybody likes to eat...
Đọc tiếp

Read the passage and answer the questions

THE BEST TIME FOR APPLES

It was the first lesson after the summer holidays at a small school in England. The lesson was about the seasons of the year. "There are four seasons in the year", said the teacher. "They are Spring, Summer, Autumn and Winter. In Spring it is warm and everything begins to grow. In Summer it is hot and there are many flowers in the fields and gardens. In Autumn, there are many vegetables and much fruit. Everybody likes to eat fruit. In Winter, it is cold and it often rains. Sometimes there is snow on the ground."

Here the teacher stopped and looked at one of the pupils, "Stop talking, Tom" he said. "Now listen to me. Can you tell us when is the best time of apples?"

 

"Yes, sir," answered Tom. "It is when the farmer is not at home and there is no dog in the garden."

True (T) or False (F) questions.

_________ In the summer it is cold and there are many flowers in the fields and gardens.

1
5 tháng 3 2018

Đáp án là: False.

(In Summer it is hot and there are many flowers in the fields and gardens.)

X. Read the passage carefully and do the tasks. There are many kinds of pollution. Air, water, and land can be polluted. Some pollution is caused by nature, such as foods, 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....
Đọc tiếp

X. Read the passage carefully and do the tasks.
There are many kinds of pollution. Air, water, and land can be polluted. Some pollution is caused by
nature, such as foods, 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
as 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 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 ____
B. Choose the correct answers.
1. According to the passage, pollution________
A. is always caused by humans. B. can only be caused by nature.
C. is mainly caused by humans. D. may sometimes cause natural disasters.
2. What kind of pollution may a car cause?
A. Air pollution B. Water pollution C. Soil pollution D. Light pollution
3. Which of the followings is not an example of soil pollution?
A. Land development B. Waste disposal
C. Pesticide or fertilizer use D. Exhaust from traffic
4. How can we help save our environment?
A. Stop pollution. B. Dump garbage into the river.
C. Drive cars everywhere. D. Cut down trees in the forests.
5. How does recycling help the environment?
A. It expands landfills. B. It saves natural resources.
C. It increases water pollution. D. It causes air pollution.

6. What can we do to help reduce air pollution?
A. Walk or bike B. Carpool to work or school
C. Use public transport D. All of the above
7. What is the main idea of this article?
A.The air is dirty because of cars and factories. B. The soil gets polluted from littering.
C.People cause pollution, but they can also stop or limit it.
D. Conservation is the only way to stop environmental pollution.

1
7 tháng 3 2021

1-c;2-a;3-d;4-a;5-b;6-d;7-c

15 tháng 3 2017

1.Cough

2.cold

3.common

4.illness

5.year

6.symptoms

7.less

8.cure

9.is

10.to

Chúc bn hk tốtvui

24 tháng 4 2019

Đáp án là: True.

(It was the first lesson after the summer holidays at a small school in England.)

I. Read the passage and do the tasks that follow Alaska is perhaps the most amazing state in the USA. It has coastlines facing both the Arctic Ocean and the Pacific Ocean. This state has an incredible three million lakes. That’s four lakes per person living there. Many cities in Alaska cannot be reached by road, sea, or river. The only way to get in and out is by air, on foot, or by dogsled. That’s why Alaska has the busiest sea airport in the world, Lake Hood Seaplane Base. Nearly two...
Đọc tiếp

I. Read the passage and do the tasks that follow

Alaska is perhaps the most amazing state in the USA. It has coastlines facing both the Arctic Ocean and the Pacific Ocean. This state has an incredible three million lakes. That’s four lakes per person living there.

Many cities in Alaska cannot be reached by road, sea, or river. The only way to get in and out is by air, on foot, or by dogsled. That’s why Alaska has the busiest sea airport in the world, Lake Hood Seaplane Base. Nearly two hundred floatplanes take off and land on the water of this airport every day. It is a really fun scene to watch.

Alaska is called the land of Midnight Sun because in summer, the sun does not set for nearly three months. But in winter the sun stays almost unseen.

All Alaskans take special pride in their beautiful and unique state.

1. Alaska ___________.

A. is another name for the USA B. is an island in the Pacific Ocean

C. has coastlines facing both the Arctic Ocean and the Pacific Ocean

2. Which statement below is NOT CORRECT?

A. In Alaska, the number of lakes is bigger than that of people.

B. There is one lake for each person living there.

C. Alaska has an incredibly high number of lakes.

3.Which method below can always be used to reach a place in Alaska?

A. by air B. by road C. by river

4. In Alaska we can always see the sun ___________.

A. in winter B. in summer C. every month of the year

II. Rewrite the sentences below without changing their original meaning.

1. Radioactive pollution is very dangerous. It can cause abnormal growth. [since]

______________________________________________________________

2. Leaves are damaged. The tree cannot get enough food energy to stay healthy. [because]

______________________________________________________________

3. I don’t have much money now, but I want to buy a house in PhuCuong.

If ____________________________________________________________

4.Light pollution happens. There is a change in animals’ living patterns.

If ____________________________________________________________

5.Acid rain is dangerous. Trees’ leaves are damaged. [because of]

___________________________________________________________________

6. The Walt Disney Studios, the famous movie company, has produced hundreds of cartoons for children.

Hundreds of cartoons for children ___________________________________

1
13 tháng 4 2020

I. Read the passage and do the tasks that follow

Alaska is perhaps the most amazing state in the USA. It has coastlines facing both the Arctic Ocean and the Pacific Ocean. This state has an incredible three million lakes. That’s four lakes per person living there.

Many cities in Alaska cannot be reached by road, sea, or river. The only way to get in and out is by air, on foot, or by dogsled. That’s why Alaska has the busiest sea airport in the world, Lake Hood Seaplane Base. Nearly two hundred floatplanes take off and land on the water of this airport every day. It is a really fun scene to watch.

Alaska is called the land of Midnight Sun because in summer, the sun does not set for nearly three months. But in winter the sun stays almost unseen.

All Alaskans take special pride in their beautiful and unique state.

1. Alaska ___________.

A. is another name for the USA B. is an island in the Pacific Ocean

C. has coastlines facing both the Arctic Ocean and the Pacific Ocean

2. Which statement below is NOT CORRECT?

A. In Alaska, the number of lakes is bigger than that of people.

B. There is one lake for each person living there.

C. Alaska has an incredibly high number of lakes.

3.Which method below can always be used to reach a place in Alaska?

A. by air B. by road C. by river

4. In Alaska we can always see the sun ___________.

A. in winter B. in summer C. every month of the year

II. Rewrite the sentences below without changing their original meaning.

1. Radioactive pollution is very dangerous. It can cause abnormal growth. [since]

=> Radioactive pollution is very dangerous since it can cause abnormal growth.

2. Leaves are damaged. The tree cannot get enough food energy to stay healthy. [because]

=> Leaves are damaged because the tree cannot get enough food energy to stay healthy

3. I don’t have much money now, but I want to buy a house in PhuCuong.

=> If I had much money now , I would buy a house in PhuCuong

4.Light pollution happens. There is a change in animals’ living patterns.

=> If light pollution happened , there would be a change in animals' living patterns

5.Acid rain is dangerous. Trees’ leaves are damaged. [because of]

=> Acid rain is dangerous because of trees’ leaves are damaged

6. The Walt Disney Studios, the famous movie company, has produced hundreds of cartoons for children.

Hundreds of cartoons for children ____have been produced by the Walt Disney Studios , the famous movie company

2 tháng 2 2018

Đọc rồi trả lời câu hỏi

There are four seasons in a year in Vietnam. They are spring,summer,fall and winter. The weather in the spring is usually warm and fine. There are many flowers in the spring. In the summer the weather is hot. It's always sunny. When the fall comes, the weather becomes cool. We have much rain in the fall. It's the season of umbrellas. After fall comes winter. It's a dry season. The weather is cold and it doesn't rain very often. But it never snows in winter in Vietnam

1.How many seasons are there in Vietnam?What are they?

There are four seasons in a year in Vietnam. They are spring ,summer, fall and winter.

2.What's the weather in the summer?

In the summer the weather is hot.

3.Why do people call fall the season of umbrellas?

Because we have much rain in the fall.

4.Can you see snows in the winter in Vietnam?

No, I can’t.

2 tháng 2 2018

There are four seasons in a year in Vietnam. They are spring,summer,fall and winter. The weather in the spring is usually warm and fine. There are many flowers in the spring. In the summer the weather is hot. It's always sunny. When the fall comes, the weather becomes cool. We have much rain in the fall. It's the season of umbrellas. After fall comes winter. It's a dry season. The weather is cold and it doesn't rain very often. But it never snows in winter in Vietnam

1.How many seasons are there in Vietnam?What are they?

There are four seasons in a year in Vietnam. They are spring ,summer, fall and winter.

2.What's the weather in the summer?

In the summer the weather is hot.

3.Why do people call fall the season of umbrellas?

Because we have much rain in the fall.

4.Can you see snows in the winter in Vietnam?

No, I can’t.

31 tháng 5 2018

Đáp án là: There are four seasons in the year.

II/ Read the passage. Then write True or False for each of the sentences below. (1.5pt) In the UK we each use about two hundred steel food and drink cans every year. Steel cans are popular because they are convenient, easy to store and unbreakable. But when you have finished with a can what do you do with it? Do you throw it away and forget all about it? Probably! But behind the scenes there are people whose work is to make sure that the steel is never wasted. In fact, recycling or re-using...
Đọc tiếp

II/ Read the passage. Then write True or False for each of the sentences below. (1.5pt)

In the UK we each use about two hundred steel food and drink cans every year. Steel cans are popular because they are convenient, easy to store and unbreakable. But when you have finished with a can what do you do with it? Do you throw it away and forget all about it? Probably! But behind the scenes there are people whose work is to make sure that the steel is never wasted. In fact, recycling or re-using steel cans is so successful that every day of the year more than five million cans start new lives in new steel products.

After you have thrown away your can, what happens? Well, first of all it is collected by the men who empty your dustbin each week and take to a tip, together with all the other household rubbish. Then the rubbish is sorted and the steel cans are taken separately to a special factory which turns old cans into high quality steel. It’s this steel that may well find its way back into your home in the form of knives and folks, garden equipment and, of course, food and drink cans.

So next time you open your fizzy drink, just remember where your can may have been!

23. In the UK people use about two hundred steel food and drinks cans yearly.________

24. Every year there are more than five million cans starting new lives in new steel products_________

25.Cans are sorted and then they are taken to the factory for recycling.___________

26.The steel cans can only be recycled to make into garden household _________

27. The topic sentence of this passage is___________

A. recycle cansB. the recycling of cans C. how to recycle cans D. what is recycle cans

28. The nearest meaning of “its” in line 9 is____________

A. of the cans B. of the steel C. of the homes D. of the knives

Giup mi i peaaaaaaaaaaaaaaaaaaaaaaaaasssssssssssss

0
20 tháng 8 2016

1. cough

2. cold

3. common

4. illness

5. year

6. symptoms

7. less

8. cure

9. is

10. it(câu này bn làm rồi,ghi trong đề lun kìa)

à mà nhớ tick cho mk nha,mơn nhìu