ÃÐÀÌÌÀÒÈÊÀ: Ïîâòîðåíèå òåì «Ïîäëåæàùåå» è «Äîïîëíåíèå»
Section I
Ex. 1. Practise your pronunciation.
a) recognize ['rckognaiz], relative ['relotiv], carefully ['kcofuli], determine [df t3:min], electrolysis [ilck'trohsis], unique [jur'nik], subsequent ['sAbsikwont], aqueous feikwios], observation [.obzo'veijon], isolate ['aisolcit], phase [fcizj, hybridize ['haibndaiz]
b) is^'burncdJnNair, ' weighty fNoxygen, the a'mount^ofMiydrogen, with^'these^obser'vations, 'neighbouring^,'water molcculcs
c) 'Water was 'thought by the/*ancicnts | to be anclcmcnt.
Ex. 2. Pay attention to the structure of the following words. Translate them into Russian.
a) undergo, underestimate, underdeveloped, undergraduate, underground, underline, understand
b) misunderstand, misadvise, misbehave, miscalculate, misconception, mishandle, mishear, misinform, mispronounce, mistake
c) semiautomatic, semiconductor, semiannual, semifluid
| Example: |
v Ñõåìíîì 161
Ex. 3. Define (he meanings of (he word both in the following sentences:
1. Combustion is a chcmical reaction which takes placc with the evolution of both light and heat. 2. As to sulphur and oxygen, it should be noted that both of these elements have allotropic modifications. 3. Which of the two seasons do you like better—summer or autumn? — As for me, I like both. 4. Solutions arc very important kinds of matter — both for industry and for life. S. Both of the substanccs (barium sulphate and silicon dioxide) arc practically insoluble in water. 6. What is the matter with M and N, they both are absent again? 7. Both sodium and potassium belong to the same family of elements, it is not surprising diat they have similar properties.
Ex. 4. Find the predicate, the subject and the object in the following sentences:
1. Lavoisier first recognized that wratcr is a compound of the two elements, hydrogen and oxygen. 2. The structure of water must be fundamentally different from that of most other liquids. 3. The characteristic increase in the density of water with temperature is found to continue until 4°C.
Text 24 A