Lesson 11

  1. Lesson 10
  2. Lesson 12
  3. Lesson 13
  4. Lesson 14
  5. Lesson 15
  6. Lesson 16

: 䳺 may, might, could, ought .

Scction I

Ex. 1. Pronounce the following words.

pb ra physical, physics, phase, phenomenon, sphere, phosphorus, phosphorescent, sulphur, amorphous
th [0] thank, theatre, theory, thing, think, three, third, thirteen, thirty, Thursday, thousand, method, hypothesis, lithium, mathematics, growth, length, synthesis, thorough, throughthe, than, other, with, that, this, then, these, those, they, their, them, there, thus, rather, further, either, though, nevertheless

X [ksj axis, box, mix, mixture, exception, next, excess, cxccrcisc, except, approximately, experiment, explain, oxygen, expression, extract, extremely, oxide
[Gz] examine, examination, example, existence, exhibit, exact, auxiliary
kn [N] know, knowledge
wr write, writer, wrong

b) peculiar [pi'kjurlio], category [ 'kaetogon], intrigue [in'tri: g], phosphorescent [.fosfo'rcsnt], elusive [i'Iosiv], magic [#mxd3ik], urine [juonn], nevertheless [.nevodo'les], elaborate [I'lasborit], waxy fwacksi], abandon [d'bacndon], fascinating [TaKineitig]

Ex * 2. Read the following words and say what Russian words help to understand their meaning:

phosphorus, interesting, special, category, reason, intrigue, substance, phosphorescent, history, alchemist, elusive, idea, magic, human, series, distil, detail, preparation, secret, formula, method, isolate, limit, modern, intensely, extremely

Ex * 3 * Pay attention to the following way of word-building:

+ -ous [os] ->

various, religious, curious, poisonous, obvious, analogous, amorphous, ferrous, anhydrous, famous

> human, proletarian, republican

+ - (i) an

( -) ^

historian, academician, technician, physician, musician

Ex * 4. Arrange the words in the alphabetic order, give their initial forms and find their meanings in a dictionary. Do it as quickly as you can.

glowing, rarely, searching, stones, carried (on), thrilled, leaked (out), bones, abandoned, equipment, fascinating, allowed, causes, burns, heals, handles, forcepts, fumes

Ex. 5 * Define the meaning of the italicized words.

1. Brand carried on a scries of elaborate experiments. 2. We went away late, only when we carried out all the experiments. 3. It is difficult to carry this bag, it is very heavy. 4. The container started leaking. 5. The news soon leaked out. 6. Phosphorus should never be allowed to touch the skin. 7. We usually peel the skin of the potatoes before boiling. 8. Tiger's skin is very beautiful.

Text 11 A




Text 9 | Fluorine | Lesson 10 | Modifications of Phosphorus | Lesson 12 | Chemical Symbols for Representing Compounds | Weight of 12 atom of carbon 12 | Lesson 13 | Text 13 A The History of Chemistry | Text 13 |

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