A. LISTENING (2pts)
I. Listen to the recording twice and fill in the blanks.
For 2.5 million years the Earth's climate has fluctuated cycling from ice ages to warmer periods. But in the last century the planets temperature has risen unusually fast about 1.2 to (1)…………degrees Fahrenheit. Scientists believe it's (2)………… activity that's driving the temperatures up a process known as global warming. Ever since the industrial revolution began factories power (3)…………and eventually cars have burned fossil fuels such as oil and pull releasing huge amounts of carbon dioxide and other gases into the atmosphere. These greenhouse gases trap (4)…….. near the earth through a naturally occurring process called the greenhouse effect. The greenhouse effect begins with the sun and the energy it radiates to the earth. The earth and the atmosphere (5)……..some of this energy while the rest is radiated back into space.
YOUR ANSWER:
Question 1: …………………………….
Question 2: …………………………….
Question 3: …………………………….
Question 4: …………………………….
Question 5: …………………………….
...........................................................................................