I. Ïîâòîðèòå è çàïîìíèòå ñëåäóþùèå ñëîâà:
1) damp air – âëàæíûé âîçäóõ
2) deposit, n – îñàäîê, îñàæäàòü
3) destruction, n – ðàçðóøåíèå
4) dilute, v – ðàçáàâëåííûé
5) disastrous, adj – ãèáåëüíûé
6) dissolution, n – ðàñòâîðåíèå
7) evaporation, n – èñïàðåíèå
8) exclude, v – èñêëþ÷àòü
9) immerse, v – ïîãðóæàòü, ïîãëîùàòü
10) scale, n – îêàëèíà
11) voluminous, adj – îáúåìèñòûé, îáøèðíûé
12) weld, n,v – ñâàðíîé øîâ, ñâàðèâàòü
II. Ñâåðÿÿñü ñ òåêñòîì, ïåðåâåäèòå ñëåäóþùèå ñëîâîñî÷åòàíèÿ:
1) characteristic properties; 11) combined state;
2) salt water; 12) solid metal;
3) access of air; 13) lose thickness;
4) flow through the liquid; 14) destruction of metal;
5) sulpheric acid; 15) physical dissolution;
6) hydrogen gas; 16) mechanical process;
7) deposits crystals; 17) operate simultaneously;
8) ferrous sulphate; 18) special mention;
9) chemical changes; 19) steady tensile stress;
10) conversion of surface. 20) type of corrosion.
III. Îáðàçóéòå àíòîíèìû îò ñëåäóþùèõ ñëîâ:
to lose, to cease, damp, cooling, slowly, thick, destruction, to exclude, frequently, to start, to affect, to dip.
IV. Óêàæèòå ïðàâèëüíûé ïåðåâîä ïîä÷åðêíóòûõ ñëîâ.
1. Iron placed in salt water with access of air also produces rust.
a) ïîìåùàþò;
b) ïîìåñòÿò;
c) ïîìåùàëè.
2. The name "corrosion" describes these and similar chemical and electrochemical changes.
a) áóäåò îïèñûâàòü;
b) îïèñûâàåò;
c) îïèñûâàë.
3. We may say that "corrosion" is the destruction of metal or alloy by chemical change.
a) ìîæåì ñêàçàòü;
b) ñêàæåì;
c) ñêàçàëè.
4. Oxidation is regarded as a type of corrosion.
a) ðàññìàòðèâàåòñÿ;
b) áóäåò ðàññìàòðèâàòü;
c) ðàññìàòðèâàëîñü.
5. The metallographist uses certain corrosive reagents to develop the structure of polished micro-sections.
a) èñïîëüçóåò;
b) áóäåò èñïîëüçîâàòü;
c) èñïîëüçîâàë.
V. Äàéòå ïåðåâîä îäíîêîðåííûõ ñëîâ:
carbide, carbon, carburize; change, changing; element, eliminate, elimination; combine, combination; complete, completely; connect, connection, connecting; consider, considerable, considerably; long, length, lengthen, lengthening; operate, operation, operator.