Стр.27 Рабочая тетрадь Модуль 3 ГДЗ Starlight Баранова 7 класс

3e Vocabulary

1. Fill in: melt, greenhouse, footprint, dissolve, patterns, threat, exhausts, extinct.

   1. There aren’t any wild wolves in Britain anymore. They became ______ 250 years ago.
   2. When the polar ice caps ______, the sea level rises.
   3. Carbon dioxide is a ______ gas.
   4. A lot of animals are losing their habitats and dying; the number of animals under ______ is increasing all the time.
   5. We should all try to reduce our carbon ______.
   6. Car ______ produce gases that surround the earth.
   7. Changing weather ______ threaten a lot of animals with extinction.
   8. Acid rain can even ______ the stone we use for buildings.

2. Choose the correct word.

   1. Carbon dioxide is ______ because it traps heat in the Earth’s atmosphere.
   2. Arctic polar bears are ______ of losing their natural habitat.
   3. ______ is causing the Earth to heat up.
   4. Power plants burn ______ like coal to create energy.
   5. Dangerous gases like carbon dioxide surround the ______.
   6. The ice sheets that cover Greenland and Antarctica are ______ rapidly.
   7. Scientists believe that global warming may be the cause of ______ weather such as floods.

Reading

3. Read the text. Five sentences are missing. Match each sentence (A–F) to a gap (1–5). There is one extra sentence.

   If you’re having an outdoor party or a picnic, you don’t want a storm to ruin it for you. In the same way, if you’re a farmer, you need the sun to shine and the rain to pour at the right time for the best crops.

   1) ______

   One way to control the weather that scientists have already used is ‘cloud seeding’.

   2) ______

   When you do this, drops of water in the clouds attach to the particles to make raindrops. Believe it or not, in China there is a “Weather Modification Office” that often uses cloud seeding!

   3) ______

   In 2008, it used 1,104 cloud-seeding rockets to keep the opening ceremony of the Olympic Games dry. It ‘seeded’ the clouds before they got to Beijing, so it didn’t rain on the athletes. In other places, scientists have also ‘seeded’ clouds with dry ice to get rid of fog at airports.

   4) ______

   In 2009, Chinese meteorologists were trying to create rain during a drought when a cold front arrived and turned the rain into a heavy snowstorm. Beijing froze and there was chaos on the roads! Some scientists don’t believe that we can really control the weather, but others think that in the future, we will be able to control it with ‘nanobots’ or microscopic robots. These nanobots could make changes in the atmosphere and stop storms before they form.

   5) ______

   Until then, though, we’ll have to keep an eye on the weather report and take an umbrella to our picnics, just in case!

   • A This involves firing a rocket containing silver iodide into a cloud.
   • В If this works, it will reduce the number of natural disasters like hurricanes and floods.
   • C So imagine a world in which we could control the weather!
   • D Cloud-seeding can go wrong, though!
   • E It claims that it has stopped hailstorms, ended droughts and even put out fires.
   • F If there’s a clear blue sky, cloud-seeding won’t work.