Прочитайте текст. The Egyptian pyramids are famous symbol of ancient Egypt. The stone structures wer...: ответ на тест 912020 - Английский язык

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The Great Wall of China was built across northern China to protect the population.
 1_______. The work was done by enormous gangs of forced labourers and many of them died doing the work. 2___________. It is made of earth covered with stone.
3___________. The stone structures were usually tombs for pharaohs. The pyramids have square bases with sloping sides which meet at an apex. The first pyramid was built in about 2600 BC and is over 140m high. 4___________. It is estimated that 20-25,000 people worked for 20 years to build each pyramid.

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The Great Wall of China was built across northern China to protect the population. Before the third century BC there were lots of smaller walls and these were joined together to make one long. 1_______. The wall is over 2000 km long, 3.5m high, and 4.5m wide at the top.2___________.
The Egyptian pyramids are famous symbol of ancient Egypt.
3___________. The pyramids have square bases with sloping sides which meet at an apex. 4___________. One of the biggest pyramids is made of enormous stone blocks which weigh up to 200 tonnes each. It is estimated that 20-25,000 people worked for 20 years to build each pyramid.

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Generally the load on roofs consists of two components: the snow load and the wind-pressure. The action of these loads is quite different on flat roofs and pitched ones. The snow load on flat roofs is great; practically it is at the maximum. As to the wind pressure on roofs of this type, it is very small – practically it is at its minimum. On pitched roofs the situation is different; when the pitch of the roof increases the weight of the snow load decreases. As to the wind-pressure, it increases with the increase of the pitch.
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On pitched roofs when the pitch of the roof increases the weight of the snow load …

Заполните пропуски в инструкции следующими словами:
1. Don’t 1_______ here.
2. This material is 2_______.
3. Wear goggles 3_______ your eyes.
4. This 4_______ is corrosive.

Заполните пропуски в инструкции следующими словами:
1. To protect the 1_______, goggles must be worn.
2. To protect the head, a 2_______ must be worn.
3. To prevent electric shocks, the power must be 3_______.
4. 4 _______ burns to the hands, rubber gloves must be worn.

Заполните пропуски в инструкции следующими словами:
1. A mask or 1_______ must be worn when operating a grinding wheel.
2. The electricity supply must be switched off when working with 2_______ cables.
3. Helmets must be worn when working with overhead 3_______.
4. Guards must be positioned 4_______ when operating machines.