Swimming alongside wild dolphins has long been on the Hawaii vacation list. However, scientists are concerned that increased human activities may do bad to the animals by disturbing a very important period of their rest. “We have seen changes in their action,” Ann Garrett of NOAA’s National Marine Fisheries Service said. “They will be more active with people around.”

After feeding in deep water at night, dolphins return to sheltered, shallow (浅的) water to rest during the day. The problem appears when swimmers draw them out of their resting state, a change in behavior that NOAA points out “may cause disturbance”.

“Disturbing their resting behaviors can actually affect their long-term health and the health of the population,” Garrett said. This summer, NOAA is set to put forward its new rules. “NOAA is considering a lot of measures. These measures may make some people angry, but they will undoubtedly do good to those dolphins,” Garrett said.

Today, a small number of Hawaii tour companies willingly join in a NOAA program called Dolphin SMART. Designed to lower the disturbance that dolphins suffer because of human activities to the minimum (最低限度), the program encourages tourists to stay 50 yards away from dolphins and to move away carefully if they feel the animals are disturbed.

NOAA’s new rules, however, would not be allowed to be chosen to follow or not, and could affect over 200 dolphin-related businesses as well as swimmers and other ocean users. Garrett said that new rules would keep tour companies from disturbing dolphins. “The final goal of the changes,” she said, “will be to provide more protections for dolphins while still offering a chance for tourists to have a pleasant wildlife experience”.

【小题1】What can we learn about dolphins’ living habits from the text?

A．They sleep in deep water.

B．They hunt in shallow water.

C．They rest during the nighttime.

D．They are inactive in the daytime.

【小题2】What does Garrett think of the measures to be taken by NOAA?

A．Perfect.

B．Meaningless.

C．Useful.

D．Confusing.

【小题3】Dolphin SMART is a program designed to _____________.

A．make the most use of dolphins.

B．help reduce human disturbance to dolphins.

C．let people know how smart dolphins are.

D．show how to get close to dolphins in a smart way.

【小题4】In the last paragraph Garrett hopes that _________________.

A．new rules will be carried out immediately.

B．dolphin-related businesses will close down.

C．swimmers will choose to stay away from wildlife.

D．the changes will protect dolphins without disappointing tourists.