Вопрос № 284259 - Английский язык

Прочитайте текст и заполните пропуски подходящими по смыслу словами
There are 1_______ types of chisel for metalwork and for woodwork. Woodwork chisels have a smaller angle at the point of the tool Although this is suitable for soft materials such as 2_______, a tool point with a small 3_______ is too weak for hard materials. 4_______ metal, a stronger point is necessary, so the angle is greater at the point of a metalwork chisel.

Прочитайте текст и заполните пропуски подходящими по смыслу словами
There are 1_______ types of chisel for metalwork and for woodwork. Woodwork chisels have a smaller angle at the point of the tool although this is suitable for soft materials such as 2_______, a tool point with a small 3_______ is too weak for hard materials. 4_______ metal, a stronger point is necessary, so the angle is greater at the point of a metalwork chisel.

Прочитайте текст и заполните пропуски подходящими по смыслу словами
Most cars use water to cool the 1_______. Water flows from the radiator through a 2_______ of water passages and rubber 3_______. A water pump pushes the water round. This system is known a 4_______ system .

Прочитайте текст и заполните пропуски подходящими по смыслу словами
The raw materials for plastics are coal and 1_______, and many plastic materials today are produced from oil. Plastics can be divided into two main 2_______. The first group, called thermoplastics, includes well-known plastics such as PVC, nylon and polythene. These can be treated (heated, softened and cooled) several times, and can be formed into combs, pipes and bags, in addition to many other similar 3_______.
Thermosetting 4_______ include melamine, polyurethane and phenolic resin, and can be made into tableware, foams and plugs respectively. However, this group differs from thermoplastics because they can be treated only once and harden when they are heated.

Прочитайте текст и заполните пропуски подходящими по смыслу словами
Heat causes some 1_______ to expand more than others. For example, copper expands more than iron. This 2_______ is used in the bimetal strip, which consists of two dissimilar strips of metal welded together. The strips are usually made of brass (an alloy of copper and zinc) and invar, a ferrous alloy which expands very little when heated.
An increase in 3_______ causes the brass to expand more than the invar. This expansion causes the bimetal strip to bend, and consequently a switch or a valve is 4_______.

Прочитайте текст и заполните пропуски подходящими по смыслу словами
The first scientists to study colour was Sir Isaac Newton. He was an English 1_______      who lived from 1642 to 1727. Newton was the first person to 2 _______ white light into different colours.
In 1861 another English scientist, James Clerk Maxwell, showed that he could make other colours by mixing the primary colours – red, blue and yellow – in different ways. These other colours are called secondary and tertiary colours. We make secondary colours by 3 _______ two primary colours together. For example, red and yellow become orange, yellow and blue become green, and blue and red become violet. We make tertiary colour with one 4_______ colour.
We can make a room look bigger or smaller, hotter or colder by using colour. Green and blue are cold colours. They can also make a room look bigger. Red, orange and yellow are hot colours. They can make a room look smaller.