Present Simple
1) I read books every day.
2) Kate usually helps her mum to cook.
3) We do our homework in the afternoon.
4) I like dogs.
5) Dan is American, he speaks English.
6) Every summer my friends and I go to the seaside.
7) My father plays basketball on Sundays.
8) I live in a small town.
9) My sister likes to play with our dog.
10) My grandparents watch TV in the evening.
Present Continuous
1) My classmates are playing chess now.
2) Look! She is sleeping.
3) Mum is cooking dinner at the moment.
4) We are doing our homework now.
5) It is raining now.
6) My father is driving to work now.
7) My aunt is reading a letter now.
8) They are speaking English now.
9) My sister is dancing at the moment.
10) I am writing the exercise.
у вас не всё верно в задании 2.
2) disastrous floods (катастрофические паводки)
4) harmful (вредный)
5) damaging effects (вредное воздействие)
8) protection
9) poverty (бедность, нищета)
Задание 3
1 acid rain
2 tropical rainforest
3 exhaust fumes, exhaust gases
4 global warming
5 ozone layer
6 nuclear energy, nuclear disaster
7 public transport
8 traffic jams
9 natural resources
10 air pollution
11 sea pollution
12 solar energy
13 finite resources (ограниченные запасы ресурсов)
14 greenhouse effect
15 clean energy (экологически чистая энергия)
16 recycled resources (вторичное сырьё), recycled waste products (переработанные отходы)
17 noise pollution
18 renewable energy/resources/fuels
2)3а+5в-4а-2в=3в-а
при а=5,3; в=1/3; то
3×(1/3)-5,3= 1-5,3=-4,3