The main purpose of the first 3 paragraphs of the passage is to ______.
A: prove that contaminants are harmful to health
B: show that contaminants could affect the future generations
C: describe some experiments made by toxicologists
D: urge that pesticides should be abandoned
A: prove that contaminants are harmful to health
B: show that contaminants could affect the future generations
C: describe some experiments made by toxicologists
D: urge that pesticides should be abandoned
举一反三
- The main purpose of the passage is to ______. A: predict the future of medical care B: describe a health checkup device C: show the superior health care system of Sweden D: warn about the dangers of undetected diseases
- The main purpose of the passage is ____. A: to show us a future way of recycling wastes B: to tell the importance of recycling wastes C: to warn people the danger of some wastes D: to introduce a new recycling plant
- The main purpose of this passage is ______. A: to prove that man is a descendent of some higher animal B: to satirize human greediness C: to prove that man is superior to other animals D: to criticize man as a maniac
- The main purpose of this passage is ______. A: to prove that man is a descendent from some higher animal B: to satirize human greediness C: to prove that man is superior to other animals D: to criticize man as a maniac
- The main purpose of this passage is ______. A: to criticize B: to describe C: to advertise D: to celebrate