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Ознакомительный фрагмент работы:
. Выберите правильный вариант.
1) Most cars and motorbikes ... petrol engines.
a) use;
b) is used;
c) are used;
d) uses.
2) Diesel engines ... widely ... in large vehicles as trucks and trains.
a) is ... used;
b) are ... used;
c) has been ... used;
d) is being ... used.
3) The engine ... by water from the radiator.
a) cooled;
b) are cooled;
c) is cooled;
d) are cooling.
4) The electricity ... in the battery.
a) stored;
b) are stored;
c) store;
d) is stored.
5) The main part of the engine ... the block.
a) calls;
b) is called;
c) were called;
d) are called.
6) In 1745 Lomonosov ... a professor at the Academy of Sciences.
a) appointed,
b) is appointed;
c) was appointed;
d) were appointed.
7) Mechanical properties ... usually by tension, bend and hardness tests.
a) are determined;
b) is determined;
c) was determined;
d) determines.
8) An aluminium alloy ... for the cylinder block, cylinder head, manifolds and sump in the interest of weight reduction.
a) employs;
b) employed;
c) were employed;
d) is employed.
9) Piston ring performance ... by a variety of factors to meet the trends in diesel engine design.
a) has been affected;
b) have been affected;
c) affected;
d) are affected.
10) Mass ... in grams or kilograms.
a) measures;
b) measured;
c) is measured;
d) are measured.
II. Перепишите текст, используя страдательный залог.
Our apartment-block is starting a new scheme. We will collect all the old newspapers and tin cans. We will put them in a special container. When the container is full, the council will collect it. They will take it to a factory. The factor)' will recycle the newspapers and cans into something new.
III. Переведите предложения на русский язык, обращая внимание на инфинитив.
1) Diesel engine manufactures frequently specify in detail the quality of fuel to be burned in their engines.
2) The amount of fuel injected can be varied to suit load requirements.
3) In the absence of any suitable highly rated single-cylinder turbocharged diesel engine, it has become necessary to install multicylinder turbocharged diesels for oil evaluation purposes.
4) With speed reduction, more air must be supplied to the cylinders to bum more fuel.
5) Before making the final decision on the type of finning to be used, the designer must consider the methods by which fins are produced.
IV. Переведите предложения на русский язык, обращая внимание на инфинитивные обороты.
1) Pre-chamber engines are likely to give lower maximum cylinder pressures, smoother combustion, and cleaner exhaust than direct injection engines.
2) Quick warming-up is considered to be essential to economical cylinder life.
3) They reported the capacity of the new engine to have been increased.
4) The quietest type of roots blower seems to be the three lobed type with helical rotors.
5) In the modern compression-ignition engine the piston is usually regarded as the critical component, and it is likely to be of increasing importance as still higher specific outputs are demanded
V. Установите соответствие между русскими и английскими эквивалентами.
1 including –
2 moving –
3 causing –
4 containing –
5 received –
6 provided –
7 considered –
8 appearing –
VI. Переведите предложения на русский язык, обращая внимание на причастие и герундий.
1) The engine lathe is used for great variety of metal operations, such as turning, drilling, screwcutting and many others.
2) The machine performs the following operations: cylindrical turning, facing, cutting, drilling, etc.
3) The single-column vertical turning mills are designed for roughing and finishing operations on parts made of steel, cast iron and non-ferrous metals.
4) For starting and stopping the table rotation the gearbox is provided with multidisc friction clutch.
5) This single lever controls all functions of the machine including all movements of the wheel slide, cross-feed, starting and stopping the work of the spindle.
6) Having used a new method we mechanized a number of operations.
7) Removing an injector is simple in theory but sometimes difficult in practice.
8) Good maintenance is a prime factor in reducing smoke from vehicle exhaust.
9) The engine must be capable of continuous operation with long service life, but overload on industrial engines is frequently uncontrolled, operators taking note only of serious underspeed.
10) The combustion chamber should be compact, a large surface area being a source of considerable heat loss during the compression stroke.
VII. Прочитайте текст и выполните задания.
On the Development of Technology
1) The use of technology began with the conversion of natural resources into simple tools. The prehistorical discovery of the ability to control fire increased the available sources of food, and the invention of the wheel helped humans in travelling and controlling their environment. Recent technological developments, including the printing press, the telephone, and the Internet, have lessened physical barriers to communication and allowed humans to interact on a global scale.
2) Not all technology, however, has been used for peaceful purposes; the development of weapons of ever-increasing destructive power has progressed throughout history, from clubs to nuclear weapons. Technology has affected society and its surroundings in a number of ways. In many societies, technology has helped develop more advanced economies (including today's global economy) and has allowed the rise of a leisure class...
Выберите один вариант
1. The development of technology dates back to ancient times.
A) true;
B) false;
C) there is no information in the text.
2. No other species except human beings can develop simple tools and pass their knowledge to other generations.
A) true;
B) false;
C) there is no information in the text.
3. The harmful effect of the technological processes is so little that it isn't worth mentioning.
A) true;
B) false;
C) there is no information in the text.
4. Technological development deals only with pure science, it has nothing to do with ethics and philosophy.
A) true;
B) false;
C) there is no information in the text.
5. Match the following information to the proper paragraph.
Different philosophical movements may have opposing views on the use of technology.
A) I;
B) 2;
C) 3;
D) 4.
6. Match the following information to the proper paragraph.
Some modem inventions help people to communicate freely and easily.
A) I;
B) 2;
C) 3;
D) 4.
7. Answer the question.
What do we mean when we speak about the undesirable by-products of some technological processes?
A) Changes in the values of the society.
B) The development of global economy.
C) The pollution of the environment and the depletion of natural resources.
D) The development of weapons of high destructive power.
8. Identify the main idea of the text.
A) The development of technology causes both negative and positive consequences.
B) It is impossible to use technology only for peaceful purposes.
C) The development of technology resulted in the application of the term “efficiency" not only to machines, but also to people.
D) The development of technology follows the development of society.
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