TOPIC 3

Mobile phone is a good technology which is not lacking from our lives. This report will discuss the advantages and disadvantages of using mobile phones.

Today, mobile phone has become popular to everybody since it is very convenient. The most advantage of having a mobile phone is you can communicate to your family and your friends no matter what where you are. For instance, you can contact easily to your friends by calling or sending messages everywhere without electricity. It is maybe the main reason why almost all people today choose to own a mobile phone. From the customer’s point of view, it is obvious that mobile phones assist you in business a lot, such as, make schedule of working, surf the internet, and keep in touch with their companies. Moreover, you can relax with mobile phone’s applications, for example, play games, listen to music, or chat with your friends.

On the other hand, there are also disadvantages. Using a lot mobile phone can harm your brain, particularly teenager and children who are under 16 years old. If you use mobile phones too much, you will get bad effects like dizzy, blood-brain barrier , or ears problems. In addition, when you use mobile phones while you are driving, you will get an accident. It is essential not good for you and others. Moreover, “radiations emitted from the phone are dead harmful for the eardrum”, has proved by many scientist.
Owning a mobile phone in your hand is you can solve many issues and hold most of information around the world. Even though is not good for your health and you have to protect yourself from bad effects of mobile phones if you choose to have one.

bn cố gắng lên là được nhs

* Ngại làm ghia *

V. Read and complete. Use the words in the box. (1.5pts)

lunch got up on her early didn’t dinner

It was Sunday yesterday. Linda (1) got up late. She (2) ______didn’t _______ have breakfast. She didn't do the washing. She went out for (3) ____dinner____ with her family at around 11:00.

In the afternoon, she went shopping with
(4) _____her______ mother. She didn’t listen to her favourite music, but she watched the film “Tom and Jerry” (5) ______on_______ TV.

In the evening, she had no homework. She did not go out with her friends. She went to bed (6) ______early_______.

a,5200

b;2450

Hello everyone, today I'd like to tell you some information about types and sources of energy. Energy is classified into two main groups: renewable and non-renewable.

The energy generated from natural sources such as the sun, wind, rain, and tides is called renewable energy. They are plentiful and can be generated again and again. They also have low carbon emissions so they are considered green and environment-friendly. Moreover, using renewable energy can reduce your electricity bills. Unfortunately, solar energy can be only used during the daytime but not during night or the rainy season. Geothermal energy also can bring toxic chemicals beneath the earth's surface to the top and can create environmental changes.

Non-renewable energy is the energy taken from other sources that are available on earth.They are limited and will run out in the future. They can't be re-generated in a short time.Fossil fuels - natural gas, oil and coal - are examples of them. They are cheap and easy to use. However, when burnt, they release toxic gases in the air so they cause serious environmental changes such as global warming. And the important thing is that non-renewable sources will expire someday.

- Dám cop, dám ghi nguồn

http://lop67.tk/hoidap/230004/write-short-paragraph-words-about-how-to-save-energy-at-home

Giả sử có 1 xe M nào đó đi với vận tốc bằng tbc của 2 xe máy. Xe M luôn đi chính giữa 2 xe máy. Khi xe M gặp xe ô tto cũng là lúc ô tô ở giữa 2 xe máy.

Vận tốc của xe M là ( 30+40):2=35 km/h

Xe M gặp ô tô sau: 119:(35+50)=1,4 giờ

Lúc đó ô tô đi dc : 50x1,4=70 km

Vậy....

- Có cái dàn ý nìa ✳

Save Environment

Introduction: Our natural environment and surrounding provides us with everything that we ever need. We get air, water, food, and everything else from the environment.

The term “Saving the environment” refers to the practice involved in saving and protecting the environment ensuring its sustainability.

1. Global warming is a serious environmental issue. The continuous emission of carbon dioxide by thermal power generating units is the leading cause for the surge in greenhouse gases.

2. Natural resources are limited. If the natural resources such as oil, coal, etc. are used, one day the world may fall short of these resources.

3. High-level of environmental pollution is detrimental for human and animal health.

4. Forests are fast depleting. It may cause soil erosion and drought situation.

5. Excessive use of pesticides and contamination of soil have negatively affected soil output. These fruits and vegetables are not very healthy for human health.

1. We should save drinking water. Water is a precious component of our environment. It should never be wasted.

2. We should never pollute water. Efforts should be made in making significant reduction in both domestic and industrial disposal in water bodies.

3. As far as practicable, the waste products should be recycled to make new items. The domestic and industrial garbage should be segregated as recyclable and non-recyclable before being dumped.

4. There should be a zero tolerance policy towards deforestation. Each one of us can contribute towards saving the environment by planting just one tree every-month.

5. We can make donations to NGOs that are engaged in planting trees, or in any-way working towards saving the environment.

6. Safer environmental friendly car and vehicles should be used. For short distances, people should be encouraged to use bicycle in place of motor based vehicles.

7. The use of environment unfriendly materials such as plastic should be discouraged.

8. Instead of dumping domestic garbage in the pond, lake or river, these should

9. A lot of environmental problems would disappear if we stop using petroleum, coal and natural gas as raw-materials for power generation. The focus should entirely shift on renewable sources of energy. The use of renewable sources of energy (example solar energy) would help saving the environment from global warming.