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МатематикаВопрос:
Circle the correct form. 1 A lot of rivers pollute/are polluted by acid rain. 2 Pollution gathers/is gathered in clouds. 3 This factory pollutes/is polluted the atmosphere. 4 Acid rain causes/is caused by toxic fumes that factories emit. 5 Rubbish can recycle/be recycled. 6 Volunteers collect/are collected rubbish in the parks. 7 Nesting boxes have built/have been built by volunteers. 8 Many species have endangered/have been endangered by pollution recently.
Ответ:
Краткое пояснение: Здесь нужно выбрать правильную форму глагола, определяя, является ли подлежащее активным исполнителем действия (действительный залог) или объектом действия (страдательный залог).
Пошаговое решение:
- 1. Реки сами себя не загрязняют, а загрязняются кислотными дождями. Выбираем страдательный залог: are polluted.
- 2. Загрязнение само себя не собирает, оно собирается (в облаках). Выбираем страдательный залог: is gathered.
- 3. Фабрика сама себя не загрязняет, а загрязняет атмосферу. Выбираем действительный залог: pollutes.
- 4. Кислотный дождь сам себя не вызывает, он вызывается вредными выхлопами. Выбираем страдательный залог: is caused.
- 5. Мусор сам себя не перерабатывает, его можно переработать. Выбираем страдательный залог: be recycled.
- 6. Волонтеры сами собирают мусор, они являются активными деятелями. Выбираем действительный залог: collect.
- 7. Скворечники сами себя не строят, их строят волонтеры. Выбираем страдательный залог: have been built.
- 8. Виды сами себя не подвергают опасности, их подвергает опасности загрязнение. Выбираем страдательный залог: have been endangered.
Ответ: 1. are polluted 2. is gathered 3. pollutes 4. is caused 5. be recycled 6. collect 7. have been built 8. have been endangered
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