I Match the words and make collocations. Write the collocations. (Запиши словосочетания!)
1) acid a) pollution
2) natural b) clouds
3) soil c) toxic fumes
4) power d) nesting boxes
5) polluted e) habitats
6) emit f) rain
7) collect g) cans
8) build h) the Eco – helpers club
9) recycle i) stations
10) join j) rubbish

II Complete the sentences with the collocations from task I. (Дополни предложения словосочетаниями из №1)
11) …………………………… poisons trees and plants.
12) Eco – helpers use a ladder and plastic bags to ……………………. from the tree houses.
13) I would like to become a volunteer and ………………………………………..….. .
14) Cars burn petrol and ………………………………………………………….…… .
15) The winds carry ……………………………………. across long distances far away.
16) ………………………………….….. falls into rivers, lakes and seas. It is water pollution.
17) My friends always help birds. They …………………………………..….. .
18) Animals are happy when they live in their ……………………………………. .
19) …………………….… burn coal.
20) Eco – helpers have a good idea to ……………………………… .

III Children are eco – helpers . They are working now. Complete the sentences with the words from the box.
a ladder a net gardening gloves plastic bags a rake a hammer a spade nails a watering can
21) Mary is using ……………………………………….. to plant flowers.
22) Kate is using …………………………….………..….. to collect rubbish from the tree house.
23) Tom is using ……………………………………..….. to build nesting boxes.
24) Bob is using ……………………………………..….. to clean out the pond.
25) John is using ………………………………………….……. to recycle cans.

IV Fill in the question tags.
26) Camels live in the desert, ……………………………… ?
27) My friends went to the zoo yesterday, ………………………………… ?
28) Some species of tiger are endangered, …………………………….. ?
29) Dave hasn’t done a nesting box yet, …………………………………..….. ?
30) They won’t leave school at 1 pm, ………………………………………..…. ?
31) Tim was at home last Monday, ……………………………………. ?
32) They can help protect the environment, ………………………………. ?

V Put the verbs in brackets into the Present Perfect Continuous or Present Perfect
33) People …………………………………………….…(pollute) the atmosphere for 100 years.
34)……………………………………………..….. (you / ever / see) the acid rain?
35) The eco helpers ……………………………….…..(plant) the trees all the morning.
36) The pond doesn’t look polluted..- Of course. They ……………...……..……… (clean) it out.
37) She……………………………………………(collect) the rubbish to recycle since last week.
38) How long ……………………………………… ( Helen / read) this book about ecology?
39) He ………………………………….………………………(be) an eco-helper since 1998.
40) Jane and Mark are exhausted. They ……………………………….. (clean) out the pond.
41)The plane ……………………………………………………..….(just / land).
42) Mike has a headache . He ………………………….. (work) all the evening.
43) Jane is really happy. She ……………………………….(win) the award in eco-competition.