Why does the author say Newton has a unique sense of humor？

the reading material.

ose who ______.

Our knowledge about the health of living dolphin

populations is sadly incomplete. The grave danger is

that some unique and fascinated dolphin species will 【S1】______

be gone. Urgent action is needed to avoid the deaths of

hundreds of thousands of dolphins that accidentally 【S2】______

killed every year. Some years, the figure has surpassed

half a million worldwide—all because of human

activities. This is more than 10 time the number of large 【S3】______

whales that were slaughtered in the early 1930s, the

worst years of whaling.

Dolphins may be dying because of pollution

from dumping at sea, oil spills and farm pesticides and

other chemical runoff that enters the rivers, particularly 【S4】______

in the Mediterranean and off the east coast of the United

States. For some cases, food poisoning from red-tide 【S5】______

organisms may have been the cause.

It is not enough for humans to stop killing dolphins

and some other sea animals for food or other sources. 【S6】______

We must reserve a place for it in the sea. They 【S7】______

need habitat, as did all animals—places free from 【S8】______

fishing nets, oil spills, pollution and too many ship 【S9】______

traffic. We must also consider all the species in

the dolphins' food chain. Which fish are the dolphins

eating? Which fish and other organisms are the

fish eating? To protest habitats, all these things must 【S10】______

be taken into account.

【S1】

这段时间里，他工作努力并很快当选为学生会主席).