Вставить слова по смыслу . a) water b) bang c) pollution problems d) skin burns e) miles f) threat fire: this is the most frequent of the hazards however the consequences are generally less. the effect of fire on people usually takes the form of ( and is usually dependent on the exposure time and the intensity of the heat. explosion: explosions are usually heard from far away as a (2) this is the result of a shock wave. this overpressure can kill people but usually the indirect effects of collapsing buildings, flying glass and debris causes far more loss of life and severe injuries. there are different types of explosions which include gas explosions and dust explosions. toxic/chemical release: sudden releases of toxic vapors have the potential to cause death and severe injuries several (3) from the release point. they are carried by (4) and air. their release into public sewage systems, rivers, canals and other water courses, either directly or through contaminated water used in fire fighting can result in serious threat to public. environmental damage: as well as having the potential for causing injury, loss of life and damage to property, the hazards of fire, explosion and toxic releases may pose a severe (5) to the environment. release of other substances, not directly toxic to humans can cause major (6) it is becoming increasingly recognized that damage to natural resources such as plant and animal life can have serious long term consequences.

1. d, 2. b, 3. e, 4. a, 5. c, 6. f

1 . They want (to be taken) to the concert by their father.
2 . I am glad (to have done) all the homework yesterday.
3 . This plant is known (to produce) tractors.
4 . He wants his son (to become) a lawyer.
5 . The enemy army was reported (to have overthrown) the defense lines and (to have advanced) towards the suburbs of the city.
6 . He seems (to know) French very well: he is said (to have spent) his youth in Paris.
7 . You had better (call) our distributors at once.
8 . We are happy (to be invited) to the party.
9 . That firm is reported (to be conducting) negotiations for the purchase of sugar.
10 . It seemed (to have snowed) heavily since early morning: the ground was covered with a deep layer of snow.
11 . He didn’t hear me (to have knocked) at the door.
12 . I want (to be informed) of her arrival.
13 . Our sportsmen are proud (to have won) the cup.
14 . He is known (to have been working) on the problem for many years.
15 . The representative of the firm asked for the documents (to be send) by air mail.

1. I (am taking) my sister to school now.
2. He (is helping) his father now.
3. At the moment they (are going) to the river for a swim.
4. She (is playing) the violin now.
5. I (am reading) now.
6. He (is sleeping) now.
7. We (are drinking) tea now.
8. They (are going) to school now.
9. I (am not sleeping) now.
10. She (is not drinking) coffee now.
11. We (are not watching) TV now.
12. They (are not eating) now.
13. My mother (is not working) now.
14. Are you (working) now?
15. Is he (playing) now?
16. Are they (eating) now?
17. Is your sister (resting) now?
18. What are you (doing) now?
19. What are you (reading) now?
20. What are they (eating) now?
21. What is your brother (drinking) now?
22. Is everybody (thaving) a good time now?
23. Is she (taking) medi​cine now?
24. Where are they (going) now?
25. Are they (speaking) English now?
1. I (take) her to school every day.
2. He (helps) his father very often.
3. They usually (go) to the river for a swim.
4 She (plays) the violin every day.
5 I (read) every day.
6 He (sleeps) every night.
7 We (drink) tea every morning.
8 They (go) to school every morning.
9 I (do not sleep) in the daytime.
10 She (does not drink) coffee after lunch.
11 We do (not watch) TV in the morning.
12 They (do not eat) at the lesson.
13 My mother (does not work) at an office.
14 Do you (work) every day?
15 Does he (play) in the af​ternoon?
16 Do they (eat) at school?
17 Doe your sister (rest) after school?
18 What do you (do) every morning?
19 What do you (read) after dinner?
20 What do they (eat) at breakfast?
21 What does your brother (drink) in the evening?
22 Does everybody (have) a good time every Satur​day?
23 How often does she (take) medicine?
24 Where do they (go) on Sunday?
25 What language do they usu​ally (speak)?