выполнены упражнения согласно заданиям варианта, точный текст заданий ниже
I. Перепишите и подчеркните слово, не соответствующее синонимическому ряду.
Образец: large – small – big – great
1. to use – to apply – to employ – to combine
2. to make – to do – to perform – to consume
3. main – major – usual - principle
4. opportunity – chance – loss – possibility
5. precise – accurate – inaccurate – exact
II. Перепишите и соотнесите следующие слова с их значениями.
1. clay
2. brick
3. straw
4. concrete
5. linoleum
6. plywood
7. powder
8. fibre
a. a material made of a very thin threads
b. a substance rubbed to dust
c. strong floor covering
d. board made of thin layers of wood
e. building material made by mixing cement with sand and gravel
f. material for making, for example, summer hats
g. blocks used for building purposes
h. stiff, sticky earth
III. Образуйте словосочетания слов. Запишите и переведите их на русский язык.
Образец: global warming – глобальное потепление
global, composite, notable, major, advancing, glass, phenomenal, precise, specific, honey-comb, reinforced
warming, exception, material needs, technology, fibre, rate, combination, task, structure, plastics.
IV. Перепишите следующие предложения; подчеркните Participle I и Participle II. Определите их функции в предложении. Переведите на русский язык.
1. The devices tested in the lab are reliable.
2. When invented the steam locomotive played an important part in transportation.
3. Physics is a science dealing with phenomena of matter and energy.
4. The plastic articles are difficult to repair when broken.
5. Being taken from the library the books must be returned in time.
6. While translating a foreign text we often use a dictionary.
7. Having locked the garage, he went into the house.
V. Завершите предложения, употребляя герундий. Переведите предложения на русский язык.
Образец: This book is worth (read) – This book is worth reading. Эту книгу стоит прочитать.
1. This proposal is worth (consider).
2. (Spend) money is easier than (make) money.
3. He thought of (leave) this job.
4. He likes (play ) chess and hates (do) lessons.
5. My mother is fond of (garden).
VI a) Прочитайте текст и ответьте на вопрос What developments marked the beginning of the modern era of
composite materials?
ADVANCED COMPOSITE MATERIALS
1. Composite materials are among the oldest and newest of the materials alone. Following this principal they combined clay and straw to make bricks. Then with some notable exceptions, the further potentialities of composite materials remained virtually untapped for centuries while monolithic materials, such as iron and copper, served the major needs of an advancing technology. Even in the more recent times with coming of reinforced concrete, linoleum, plasterboard and plywood panels were somewhat out of mainstream of materials development and technology.
2. During this 1930’s and 1948’3, however, light-weight honeycomb structures, machine parts from compressed metal powders and plastic reinforced with glass fibers became commercial realities. These developments marked the beginning of the modern era of composite engineering materials. The use of composite materials is steadily growing. The consumption of the fibre reinforced plastics, for example, is increasing at the phenomenal rate of 25 per cent annually.
3. There are two major reasons for the current interest in composite materials, The first is simply the demand for materials that will outperform the traditional monolithic materials. The second, and the more important in the long run, is that composites offer engineers the opportunity to design totally new materials with the precise combination of properties needed for a specific task and use them more sparingly because of their superior quality.
б) Прочитайте текст еще раз. Выберите правильный ответ, соответствующий содержанию текста:
1. Man discovered that composite materials served:
a) the needs of advanced technologies
b) man for centuries
c) to combine several materials
2. The development of compressed metal powders marked:
a) the increase of material production
b) the increase of material consumption
c) the beginning of the modern era of composite materials
3. The major reason for the current interest in composite materials is that:
a) they are easily combined
b) they offer engineers the opportunity to design new materials
c) they аге more expensive
VII. Перепишите и письменно переведите 2, 3 абзацы текста.