题目内容：

    The Kirtland’s warbler（莺）has required protections since the foundation of Endangered Species Act (ESA), but that’s about to change. The Fish and Wildlife Service（FWS）today announced it is removing the songbird from the endangered species list

“The effort to recover the Kirtland's warbler is a successful example of how to save endangered species,” said Margaret Everson, director of FWS. “The Kirtland's warbler has responded well to active management over the half century.” In 1971, the Kirtland’s warbler population declined to approximately 201 singing males and was restricted to six counties. By 2015, the population reached 2,383 singing males and had spread geographically. FWS noted the frequent and persistent singing of male warblers during the breeding season made counting possible.

“The primary threats identified at listing and during development of the recovery plan have been managed,” said FWS. Modern wildfire suppression（扑灭）practices greatly altered the natural disturbance system, which enabled the growth of the jack pine forests favored by the species, FWS noted. Michigan state has replanted approximately 90,000 acres of Kirtland's warbler habitat over the past 30 years. Timber （木材）incomes offset the cost of replanting jack pine needed to support a survivable bird population.

But while the bird is falling off the ESA list, officials note that it remains a “conservation-dependent species." Conservation of the Kirtland's warbler will continue to require a harmonious approach for carrying out future conservation work, like partnerships and sufficient funding, FWS stated. Under the Endangered Species Preservation Act of 1966, the Kirtland's warbler was federally listed as an endangered species in 1967.

“This remarkable bird has a most impressive, exemplary success story that illustrates effective conservation and cooperation at work,” added Heather Good, executive director of Michigan Audubon. Shawn Graff, vice president of American Bird Conservancy's Great Lakes program, pointed out the delisting （除名）is “cause for celebration and proof that the Endangered Species Act works.”

1.The passage is probably taken from_____.

A.a science fiction B.a news report

C.a biography D.a novel

2.What does the underlined word “offset” in paragraph 3 mean?

A.Make up for. B.Add to.

C.Fix. D.Estimate.

3.Which of the following is NOT the reason for the recovery of Kirtland’s warbler?

A.Ample funding. B.Cooperative work.

C.The foundation of FWS. D.The control of wildfire.

4.What can be concluded from the passage?

A.The male Kirtland's warblers seldom sing in the breeding season.

B.Heather Good was not very satisfied with the conservation work.

C.The Kirtland's warbler was listed as an endangered species only in one state.

D.Margaret Everson thought highly of the conservation of the Kirtland's warbler.