8. Make a plan of the text and write a summary of the text.

9. Odd one out.

1. a channel, a canal, a flume, a check, a tunnel, a filled pipe

2. clay, asphalt, cement mortar, concrete, steel, gunite

3. pine, fir, redwood, cypress, paint

4. rectangular, circular, liner, triangular, semicircular, horseshoe

5. turnouts, wasteways, overchute, settling basins, depressions

6. a chute, an intake structure, a long section, an outlet

10. Make sure you know the verbs formed from the following nouns.

characteristic → …	location → …	reduction → …
lining → …	elevation → …	dissipation → …
change → …	facility → …	excess → …
collection → …	collapse → …	accumulation → …
galvanization → …	evaporation→ …	pollution → …
diversion → …	regulate → …	avoidance → …

11. Match the words with their synonyms.

1) elevation	8) improve	a) barrier	h) overflow
2) regulation	9) act	b) collect	i) operate
3) accumulate	10) obstruction	c) control	j) level
4) excess	11) avoid	d) use	k) better
5) satisfactory	12) facilitate	e) pass	l) escape
6) employ	13) cross	f) line	m) develop
7) cover	14) superior	g) assist	n) suitable

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

1) ___ some cases; 2) to take the form ___ a tunnel; 3) because ___ the velocity; 4) to be similar ___ sth.; 5) ___ either case; 6) to construct below ___ the point of water diversion; 7) to return back ___ the river; 8) as much ___ 90 per cent; 9) to be sluiced ___ the canal; 10) to convey water ___ the terrene; 11) to line ___ gunite.

13. Translate the following words into English using the vocabulary of the text.

Чрезмерный наклон, эрозия дна канала, приемные устройства канала, быстроток, обеспечить ровное течение, изменение уровня воды, вертикальный перепад, автомагистральная насыпь, водопропускная труба, ров, дюкер, шлюз-регулятор, водосбросный коллектор, лотковый акведук, срок службы, поверхность земли, понижение местности, оцинкованный металл, выпускное отверстие, лишняя кинетическая энергия, проводить воду, сбрасывать в реку, скопившиеся наносы, рыбозаградительные решетки, расположение канала, успешно использовать, вымывать из канала, дождевая вода, деревянный желоб.

14. Find the translation of the following terms and memorize their meaning.

to measure	approach channel	a staff gage
measurement	obstruction	a hook gage
man-made	suspended particles	a point gage
natural	floating debris	stilling well
venture-type flume	to alter	corrosion
crest	coefficient	to deposit
meter	to submerge	a pool
to maintain	submergence	uniform
triangular weir	disturbance	galvanized iron
V-notch weir	accurate	plain concrete
trapezoidal weir	conveniently	nappe
sharp-crested rectangular weir