1 . Great Barrier Reef Choking on Pollutants

Attempts to protect the Great Barrier Reef are failing. A report released Monday by the government in Australia says water quality in the Great Barrier Reef is far below what it should be. It showed that pollution have decreased, but not enough to reach environmental targets.

Sediment (沉淀物) and chemicals can weaken coral, hurting its ability to feed and grow. Coral are live animals that take root in the ocean floor, but they are not plants. Reefs are the hard skeletons (骨架) left at the bottom of the sea by small marine creatures called polyps (珊瑚虫). The polyps then form the larger structure of a reef. Corals also are some of the most diverse ecosystems on the entire planet. They can make a home for invertebrates, crustaceans, fish, and sea snakes.

Steve Miles is Queensland’s environment minister. He says the research shows the Reef needs more protection. “Over that five-year period, we did see some progress towards our targets. Sediment is down 12 percent and pesticides (杀虫剂) loads are down 30 percent. But what is most disturbing is that these results are far from our targets. Progress towards these targets flat-lined in the period 2013-2014. If one of my kids came home with a report card like this, I would be a bit disappointed. There is more bad news here than good news. ” said Steve Miles.

The report also found that fewer than one-third of Queensland’s sugar plantations used techniques to reduce the use of pesticides. Only 28 percent of land managers managed their land properly. They had reduced harmful water run off to protect the health of the Reef. The official target is a 90 percent reduction in pesticide use within three years.

Scientists at the University of Queensland and the Australian Institute of Marine Sciences published their findings Wednesday, July 18 in the journal Science Advances. It found between 1992 and 2010, the recovery rate dropped by an average of 84 percent. But there is hope. The study also found some corals can recover quickly if “acute and chronic stressors” are lessened.

Meanwhile, the Australian government released its updated reef protection plan Friday. It clearly states global temperatures must be stopped from rising in order to save the world’s largest living structure.

1. What does the underlined word “They” in Paragraph 2 refer to?

A．Diverse ecosystems.	B．Sediment and chemicals.
C．Reefs and corals.	D．Small sea creatures.

2. What can be learned from what Steve Miles said?

A．He is satisfied with the protection of the Reef.

B．He thinks that the Reef needs more protection.

C．He feels angry with what his children did.

D．He is very happy about the Reef progress protection.

3. What does the underlined word “flat-lined” mean in Paragraph 3?

A．Not increase significantly.	B．Disappear.
C．Speed up.	D．Miss the chance.

4. The report found the majority of land managers in Queensland   ________.

A．were tough to deal with	B．failed to manage their land properly
C．reduced the amount of harmful water	D．were eager to quit pesticide soon

5. Where is the passage most likely to have been taken from?

A．A news report.	B．A science fiction.
C．A book review.	D．A guide book.