选择合适的单词填空
1. To ________ climate change = To observe the change in climate and its consequences

track

trace

2. 97% of climate scientists agree that climate-warming ________ in the past century are likely caused by human activities. 

tracks

trends

3. These scientists came to this ________ after collecting many different types of information about our planet. 

end

conclusion

4. One of the biggest concerns is that the polar ice sheets have ________ in mass. 

decreased

lowered

5. Another big concern is the ________ in sea levels, also caused by climate change.

rise

raise

6. Sea levels have risen ________ 8 inches in the past 100 years.

in

by

7. One of the consequences of climate change is ________ weather.

extreme

extremity

8. Many leading scientific organizations have issued ________ against the potentially catastrophic effects of climate change.

warrants

warnings

9. Carbon dioxide and other gases ________ heat.

track

trap

10.Scientists have been able to gather a lot of information from Earth-orbiting ________.

sattelites

rockets

答案
1. track 2. trends 3. conclusion 4. decreased 5. rise 6. by 7. extreme 8. warnings 9. trap 10. sattelites