Read the text and choose the correct answer for the questions below (27-30)
In
prehistoric times, people killed animals for food. They built fires to cook food and keep warm. They cut down trees for fuel. Their fires released smoke into the air. But there so few people that their activities had little impact on the environment. In modern times, the world's population has grown quickly. In 1850, there were about one billion people on earth. By 2050, according
to United Nations estimates, there will be 8,9 billon people. Today we have a big impact on the environment. People can seriously harm the planet and its animals and plants. Sometimes this damage can be reserved or slowed down. But it is often "permanent". Every April 22, the world celebrates Earth Day. This helps make people more aware of environmental problems and ways they can help.
27. According to the passage people...
A) built fires to cook food for animals
B) cut
down trees to build houses
C) used to to less harm to the environment
D) make no effort
to protect the environment
28. The word " permanent " in the passage is opposite in meaning to ….
A) Lasting forever B) expensive
C) unfortunate D)
temporary
29. According to the United Nations estimates, 2050 the human population will …..
A) increase by 2
times
B) stay about the same
C)
decrease considerably
D) be about 9 billon people
30. From middle of 19th century to 2050 the human population on Earth...
A) decreased by more than 5 times
B) increased by 8 times
C) increased by more than 5 times
D) multiplied by 3 times
