( ) 1. Where may this article come from?
A. A news report. B. A tour guide.
C. An environmental report. D. A biology magazine.
C
( ) 2. How was a dust storm formed on the Great Plains?
a. Crops died and there were no plants to keep the soil.
b. A terrible drought happened and fields dried up.
c. Most of the trees on the plains were cut down.
d. Wind blew and gathered up the soil into black clouds.
A. b-c-a-d B. b-a-c-d C. c-b-a-d D. c-a-b-d
C
( ) 3. Which of the following ISN'T the result of the dust storm?
A. Many people got sick. B. The fields were polluted.
C. Animals died without food. D. The plains became a dust bowl.
B
( ) 4. Which of the following is an opinion about the dust storm?
A. This was the worst natural disaster.
B. The dust still clogged their lungs.
C. Huge black clouds travelled for miles.
D. Dirt collected in people's houses.
A
