1.3. Образуйте прилагательные от данных существительных.

Nature natural

Structure structural

colour coloured

physics physical

reaction reactionary

theory theoretical

analysis analytical

synthesis synthetic

agriculture agricultural

technology technological

value valuable

1.4. Образуйте существительные от следующих глаголов.

to investigate	investigation
to discuss	discussion
to know	knowledge
to change	change
to transform	transformation
to react	reaction
to manufacture	manufacture/manufacturing
to separate	separation
to connect	connection

2. Грамматические задания

2.1. A) Измените данное предложение по видовременным формам группы Perfect.

Present Perfect Biotechnologists have already created many valuable fertilizers for agriculture.

Past Perfect Biotechnologists had already created many valuable fertilizers for agriculture.

Future Perfect Biotechnologists will have already created many valuable fertilizers for agriculture.

b) Преобразуйте сказуемое данного предложения в пассивную форму – Present Perfect Passive.

Biotechnologists have already created many valuable fertilizers for agriculture

Many valuable fertilizers for agriculture has already been created biotechnologists

2.2. Замените подчеркнутые в данных предложениях модальные глаголы на их эквиваленты.

Chemistry students must carry out a number of laboratory works during their studies.

Chemistry students have to carry out a number of laboratory works during their studies.

Chemistry students are to carry out a number of laboratory works during their studies.

Future biologists may combine their theoretical knowledge with practical experience in the laboratories.

Future biologists are allowed to combine their theoretical knowledge with practical experience in the laboratories.

People can use artificially made substances in many spheres of life.

People are able to use artificially made substances in many spheres of life.

2.3. Все исходные предложения из задания 2.2. Преобразуйте в отрицательную форму, задайте все виды вопросов (General, Special, Special to the Subject, Alternative, Tag question).

Chemistry students must carry out a number of laboratory works during their studies.

Chemistry students mustn't carry out a number of laboratory works during their studies.

General Must chemistry students carry out a number of laboratory works during their studies?

Special What must chemistry students carry out during their studies?

Special to the Subject Who must carry out a number of laboratory works during studies?

Alternative Must chemistry students carry out a number of laboratory works or tests during their studies?

Tag question Chemistry students must carry out a number of laboratory works during their studies, mustn't they?