7. What valves and gates are used for different heads at the entrance of intakes and sluiceways? Fill in the table.

High head	Moderate head	Low head
tractor gates, …

8. Make a plan, an abstract and then a summary of the text.

9. Choose the contextual meaning of the following words.

1. ports

a) отверстие

b) порт

c) канал

2. shell

a) кожура

b) корпус

c) каркас

3. level

a) плоский

b) уровень

с) спокойный

4. bars

a) препятствовать

b) полосы

c) прутья

5. close

a) близкий

b) закрытый

c) перекрывать

6. heads

a) герб

b) напоры

c) верхний бьеф

10. Match the words with their synonyms.

1) entrance	7) condition	a) take away	g) manage
2) withdraw	8) face	b) intensive	h) trash
3) permit	9) debris	c) terms	i) blocking
4) elaborate	10) severe	d) entry	j) overlook
5) fluctuation	11) regulate	e) complex	k) allow
6) accumulate	12) clogging	f) instability	l) gather

11. Match the words with their opposites.

1) permit	6) cause	a) exit	f) aid
2) wet	7) interfere	b) prohibit	g) dry
3) elaborate	8) tailwater	c) simple	h) prevent
4) high-head	9) entrance	d) head water	i) dissipate
5) accumulate	10) present	e) low-head	j) absent

12. Fill in the correct prepositions then choose any three items and make sentences.

1) to protect sth. ___ damage; 2) to withdraw water ___ a river; 3) to provide ports ___ a gate or valve; 4) to be connected directly ___ the conduit; 5) to construct ___ the form ___ a half cylinder; 6) to accumulate ___ the rack; 7) to remove ___ hand; 8) to use ___ fully open or fully closed position; 9) to use ___ high heads; 10) to suit ___ flow regulation; 11) to flow ___ a spillway or ___ a sluiceway; 12) to be capable ___ sth.; 13) to find the location of the hydraulic jump ___ various conditions of flow; 14) to coincide ___ sth.; 15) to depend ___ sth.

13. Read the following text and choose the best abstract.

The influence of intake structure of the Kol’skaya Nuclear Power Station on the fish community of Lake Imandra was investigated in one year. The composition of fish stocks, the distribution of fry and adult fish in the feeding canal, and their distribution in an adjacent water area were studied, and the loss of fish at the fish protection screens of the pumping station was assessed. It was found that the density of fish concentration in this region was not high due to the deterioration of ecological conditions, and the fish reserves of Lake Imandra, on the whole, were not significantly affected by the intake structure of the Kol’skaya Nuclear Power Station.

A) The impact of the intake structure of the Kol’skaya Nuclear Power Station on fish community of Lake Imandra is paid attention to.

B) The significant effect of the intake structure of the Kol’skaya Nuclear Power Station on fish community is stressed.

C) The text deals with the density of fish concentration in Lake Imandra.