Lesson 34

ГРАММАТИКА: Различные случаи инверсии.

Scction I

Ex. 1. Practise your reading.

Used in the design and interpretation of chcmical experimentation are various statistical methods.

Ex. 2. State what parts of speech the following words belong to:

act, actual, actually, action, interaction, acting, active, activity, activist, reactivity, reaction, counteraction, actor, activate, activation

Ex. 3. Define the meanings of the word extent in the following sentences:

1. The extent of the accuracy of the instrument is rather limited. 2. Mercury undoubtedly dissolves to a ccrtain extent in the water. 3. If water is added to ether, solution will not occur to an indefinite extent. 4. The concentration of iodine molcculcs must decrease to a greater extent than diat of iodine atoms. S. In liquids, the extent to w^rhich molcculcs can move is more restricted than in gases. 6. The discovery of the electron stimulated to some extent the development of an clcctronic theory.

Ex. 4. Analyse the following sentences:

1.Statistical methods can never be a substitute for scientific judgement.

2. Never can statistical methods be a substitute for scientific judgement.

Text 34 A