Many scientists warn that if global temperatures continue to rise, more animals could become ______________ in the future.
EXTINCT
Environmental organisations around the world work on ______________ projects to protect forests, wildlife, and natural habitats.
CONSERVATION
ACTIVE TO PASSIVE:
Many people recycle plastic bottles.
Many plastic bottles are recycled by many people.
If it __________ (rain) tomorrow, we __________ (stay) at home
If it rains tomorrow, we will stay at home.
If Maria __________ (win) the lottery, she __________ (buy) a house by the beach.
If Maria won the lottery, she would buy a house by the beach.
In some regions, very low levels of ______________ are affecting agriculture and making it difficult for farmers to grow crops.
One of the biggest causes of climate change is the burning of fossil fuels such as oil and ______________.
COAL
ACTIVE TO PASSIVE:
The storm destroyed several houses last night.
Several houses were destroyed by the storm last night.
If I __________ (finish) my homework early, I __________ (watch) a movie.
If I finish my homework early, I will watch a movie.
What __________ you __________ (do) if you __________ (meet) a famous actor?
What would you do if you met a famous actor?
When forests are cut down for agriculture or urban development, it leads to ______________ and destroys the homes of many species.
DEFORESTATION
In recent years, scientists have observed that ______________ glaciars in polar regions are contributing to rising sea levels.
MELTING
ACTIVE TO PASSIVE
The workers are repairing the bridge.
The bridge is being repaired by the workers.
What __________ you __________ (do) if you __________ (see) a car accident?
What will you do if you see a car accident?
If I __________ (have) a superpower, I __________ (fly) around the world.
If I had a superpower, I would fly around the world.
Some animals are considered ______________ when their population becomes very small and they are at risk of disappearing.
In large cities, air ______________ caused by cars and factories can lead to serious health problems.
POLLUTION
ACTIVE TO PASSIVE
Scientists have discovered a new species of frog.
A new species of frog has been discovered by scientists.
If my friends __________ (come) to my party, I __________ (be) very happy.
If my friends come to my party, I will be very happy.
if Tom __________ (not need) to work, he __________ (travel) more often.
If Tom didn’t need / did not need to work, he would travel more often.
During the summer, an extreme ______________ can cause dangerously high temperatures and increase the risk of wildfires.
HEATWAVE
A powerful tropical storm, known as a ______________, can cause strong winds, heavy rain, and major damage to buildings and infrastructure.
HURRICANE
ACTIVE TO PASSIVE
People should protect endangered animals.
Endangered animals should be protected by people.
If the library __________ (open) earlier, more students __________ (be able) to study in the morning.
If the library opens earlier, more students will be able to study in the morning.
If my parents__________ (live) in Australia, they __________ (see) kangaroos every day.
If my parents lived in Australia, they would see kangaroos every day.