ПРЕЗЕНТАЦИЯ по теме "Экология" 8 кл
презентация к уроку по английскому языку (8 класс) на тему

Слайд 1

Paper VS Plastic Paper bags vs. plastic bags: which is really better?

Слайд 2

Тема урока: «Экология» Цель урока: We are going to read and discuss some ecological problems

Слайд 3

Задачи урока: 1. Learn new words and use them. 2. Listen to the texts. 3. Discuss which bag is better?

Слайд 4

Synonym pairs confuse with — mistake for a large deep hole where we bury rubbish — landfill site not heavy — light only a little — minimal damage — harm get rid of them — throw them away making — manufacturing break up — decompose

Слайд 5

WORDS reusable recycle to decompose environmentally friendly

Слайд 6

We always ask a question when it comes time to decide what to take with you to the store: paper or plastic bag?

Слайд 7

choice On the one hand it’s a simple choice, but lets think about these two different things. Each has its advantages and disadvantages . Let's look at what they differ.

Слайд 8

Paper bags Paper comes from trees. It takes about three tons of wood to get one ton of paper pulp.

Слайд 9

Advantages Paper bags take less time to decompose. But paper bags for us, in Russia, are not particularly common, such as in the United States. So that we cherish our forests .

Слайд 10

Disadvantages On the other hand, the paper bags have a number of drawbacks. The main disadvantage of the paper due to the fact that it is afraid of water. Using lamination helps a little.

Слайд 11

Disadvantages Another and very significant drawback is the high cost of raw materials and ways to improve it. If you take it to a recycling center it means more energy and chemicals are used.

Слайд 12

FACT According to the magazine “National Geographic”, in the manufacturing of paper bags more energy, more water than in the production of plastic bags are used.

Слайд 13

FACT According Howstuffworks.com, papermaking pollutes air 70% more than the production of plastic bags.

Слайд 14

Plastic bags Plastic comes from oil. Everyone of us uses plastic bags in our everyday life.

Слайд 15

Advantages Advantages of plastic bags are undeniable ( неоспоримый) . They are cheap to produce, well tolerate ( выдерживает ) humidity, strong and durable. Another advantage of the polyethylene to paper is the possibility of long-term use. Plastic bag, which served as a time, can be used for a long time.

Слайд 16

Disadvantages Plastic is a very useful material, which is very important in modern life, but the problem is that it can lie on the ground or swim in the water for decades.

Слайд 17

FACT In fact, in the UK, for example, they recycle only 1 in 200 plastic bags.

Слайд 18

FACT Besides , plastic bags cause over 100,000 sea turtles and other marine animals to die every year, when animals mistake them for food.

Слайд 19

Who is the winner then?

Слайд 20

WAY OUT The best way to carry your shopping and protect the environment at the same time is to choose a reusable fabric bag.

Слайд 21

Reusable Bio bag.

Слайд 22

Some steps have been already made

Слайд 23

Conclusions Both plastic and paper bags are harmful for our environment. Paper bags are even more unhealthy than plastic ones. Its preferable to use fabric bags or the so-called Bio bags.