номер 3, страница 101 - гдз по английскому языку 8 класс учебник Wetz, Pye

3. Read the text again. Choose the correct answers.

1. In 2050, there will be _______ billion more people living on Earth.

a ten

b three

c seven

2. Agriculture has destroyed a lot of _______.

a prairies, forests and steppes

b grasslands in South America

c forests in Central Asia

3. Most vertical farms will be in _______.

a buildings in towns and cities

b forests around the world

c underground laboratories

4. Some of the advantages of genetically modified plants are that they _______

a have bigger seeds and can grow faster.

b don't need much fertiliser or pesticides.

c can grow on land and in water.

5. Some scientists think that genetically modified food might _______

a cost less than food produced on a farm

b taste better than the food we eat now

c be dangerous for people's health

What will we eat in the future?

By 2050, the Earth's population will be about ten billion. This means we will need to increase food production to feed almost three billion more people. But how can we do that without destroying the planet?

In the past, whenever we needed to produce more food, we simply cut down forests or ploughed grasslands to make more farms and ¹_______. ²_______ has caused the loss of whole ecosystems around the globe, including the prairies of North America, the Atlantic forest of South America and some of the steppes of Central Asia. We can no longer do this.

Scientists believe one solution to the problem is vertical farming. This is a method for growing ³_______ indoors in a highly controlled environment. The vertical farms, which will be in ⁴_______ in urban areas, will use new techniques, such as hydroponics and aeroponics, allowing farmers to grow plants without any ⁵_______.

Another solution is genetically modified food. Scientists are trying to create 'super plants' which will grow faster and require less water, ⁶_______ or pesticides. To do this, they change the genes of the plants' ⁷_______. They can do the same with animals, too, and they have even managed to grow meat in labs. In the near future, a single cell from a turkey or a cow will be enough to make a trillion burgers and one day, lab-grown meat might taste just like meat from real farm animals. But will people eat it?

Some scientists are worried about the possible effects of genetically modified food on people's health, so they are trying to find ways to make better use of the resources we already have. Insects, for example, are a great source of ⁸_______ and they don't need as much space or water as farm animals. Aquaculture, or ocean farms, could also provide a solution to the future food crisis.

Прочитайте текст еще раз. Выберите правильные ответы.

1. В 2050 году на Земле будет на ____ миллиарда больше людей.

а. десять

б. три

в. семь

2. Сельское хозяйство уничтожило много ____.

а. прерий, лесов и степей

б. пастбищ в Южной Америке

в. лесов в Центральной Азии

3. Большинство вертикальных ферм будет находиться в ____.

а. зданиях в поселках и городах

б. лесах по всему миру

в. подземных лабораториях

4. Некоторые из преимуществ генетически модифицированных растений заключаются в том, что они ____.

а. имеют более крупные семена и могут расти быстрее

б. не требуют много удобрений или пестицидов

в. могут расти на суше и в воде

5. Некоторые ученые считают, что генетически модифицированная еда может ____.

а. стоить дешевле, чем еда, произведенная на ферме

б. быть вкуснее, чем еда, которую мы едим сейчас

в. быть опасной для здоровья людей

Ответ:

1. b. three / б. три

2. a. prairies, forests and steppes / а. прерии, леса и степи

3. a. buildings in towns and cities / а. здания в поселках и городах

4. b. don't need much fertiliser or pesticides / б. не требуют много удобрений или пестицидов

5. c. be dangerous for people's health / в. быть опасной для здоровья людей