Task 1 Giving advice (should/shouldn't)
Представьте, что вы учитель информатики. Используйте предложенные в
упражнении фразы для того, чтобы дать своим ученикам советы по
безопасному использованию интернета. Примените модальный глагол
should/shouldn't в предложениях. Обратите внимание на то, что после
should смысловой глагол стоит в начальной форме.
You should be careful. You shouldn t talk at the lesson
ответы внесите в таблици.
• give your name to sb online use an antivirus program
• have a password keep a backup of files • use a username
• give out personal information • meet strangers you chat to online
You shouldn't give your name to someone online​

1 The Portuguese explorer Vasco da Gama had not seen penguins before he travelled to South Africa in 1497. X

2 After he had made a pilgrimage to the city of Mecca in 1325, Ibn Battuta decided to become an explorer.

3 Many explorers had tried to climb Mount Everest before Tenzing Norgay and Edmund Hillary reached the peak in 1953. ✓

4 People in Europe had not eaten potatoes until Christopher Columbus brought some from America. X

5 More than 400 years after Magellan had sailed around the world, the US submarine Triton made a similar journey underwater​

Объяснение:

ANSWER

Объяснение:

Complete the definitions.

the earth; destroys the ozone layer; smoke from factories; plants and animals; carbon dioxide

1. Conservation is the protection of natural things, e.g.  plants and animals

2. Acid rain is rain that contains dangerous chemicals. It is caused by smoke from factories.

3.The ozone layer is a layer of gases that stop dangerous radiation from the sun reaching the earth;.

4. Global warming is an increase in world temperature caused by an increase in carbon dioxide.

5. CFC (chlorofluorocarbon) is a chemical which destroys the ozone layer.