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Topic3 Using a mobile phone
What are the advantages and disadvantages of using mobile phones?
* Benefit:
- Entertainment or work becomes easier and more convenient with smartphones
-Send and receive email (email) anytime, anywhere regardless of computer.
-Take a photo on your mobile phone and share it right on social networks
* Disadvantage:
- Disturbed sleep
Using mobile phones a lot is a cause of great stress
- Skin aging
Do you have your own mobile phone?
Yes, I have
What do you usually use it for?
I usually use it for my study or entertainment
How to use a mobile phone properly?
We should not play too much on mobile phones
Avoid using your phone in the rain.
Use up the phone battery.
Get rid of bad habits when using the phone
Dear....
Today, in Vietnam often encountered many natural disasters such as floods, droughts, hail, tropical storms and other natural disasters. These are the most frightening things people are concerned about. Tropical storms often occur and cause most harm. It usually occurs in the rainy season and occurs most often in central Vietnam and coastal areas. It causes a lot of damage to people and property. First, killing people, livestock and poultry by the flood. Second, crop loss due to flooding. Humans become homeless and lose all their possessions. and many other damages caused by the storm. To prevent and fight against tropical storms, before it takes place, we must make preventive dikes, prepare adequate tools and food and other necessities. When storms occur, people must find safe shelters not to go out. After that, we have to overcome what hurricanes destroy, such as rebuilding houses, and many other things, if we live in that area, we should plant trees, protect the environment and many other practical thíng.
Your friend .......
1. It happened on December 24th last year at my sister's house.
2. We were celebrating Christmas and my niece's birthday.
3. I was wearing a jacket, a long white dress and a black boots.
4. I felt so merry and excited at that time
Are we strange to computers?
-No,we aren't
Does every think computers are good for children
-No,they don't
What three things can computers help children to do.
-about the real workd more quickly,to learn what they want,to learn and to think for themselves.
Does the writer think this is a good thing
Yes,he/she does
Noise is constant and loud sound. To measure the loudness, or volume of sounds, people use a unit called a decibel. When a sound is louder than 70 decibels, it can cause noise pollution. Do you know that the noise from a vacuum cleaner or a motorcycle can result in permanent hearing loss after eight hours? The sounds of a concert are even more serious. They can reach as high as 130 decibels and may cause immediate and permanent hearing loss. Noise pollution can also lead to headaches and high blood pressure. If you are listening to music through headphones, and other people can hear it. it means the music is too loud and unsafe. If there seems to be a ringing or buzzing in your ears, it means the noise is affecting you and damaging your hearing- Wearing earplugs when you go to concerts or other loud events, and listening to music through headphones or headsets at safe levels can help you reduce the effects of noise pollution.
1. What do people use to measure the loundness or volume of sounds ?
They use a unit called a decibel to measure the loundness or volume of sounds
2. Does the noise from a vacuum cleaner result in pernament hearing loss after eight hours ?
Yes, it does
3. What can noise pollution also lead to ?
It can also lead to headaches and high blood pressure
4. Is the music safe when you listen to it through headphones , and other people can hear it as well ?
No, it isn't
5. What can you do to help reduce the effects of noise pollution ?
I can wear earplugs when you go to concerts or other loud events, and listening to music through headphones or headsets at safe levels to help reduce the effects of noise pollution
Exercise 1:
You can choose one of these natural disasters to learn more about:
(Bạn có thể chọn một trong những thiên tai dưới đây để tìm hiểu thêm:)
- volcanic eruption (núi lửa phun trào)
- flood (lũ lụt)
- earthquake (động đất)
- landslide (sạt lở đất)
- tornado (lốc xoáy)
- cyclone (bão)
- hurricane / storm (bão nhiệt đới)
- tsunami (sóng thần)
Exercise 3: