问题 选择题

分析右侧漫画的寓意,下列叙述不合理的是(  )

A.人类破坏环境的行为最终威胁人类自身

B.污水净化后再排放有利于保护水生生物

C.生物多样性锐减的唯一原因是大量排放污水

D.目前,生物圈是所有生物惟一的家园,人类应该保护它

答案

威胁生物多样性的原因有有栖息地被破坏、偷猎、外来物种入侵、环境污染、其他原因等.随着人类的发展,生物多样性丧失的原因是多方面的.人口快速增长是破坏或改变野生动物栖息地和过度利用生物资源的最主要的原因.人口数量急剧增加,人类集中活动的区域不断扩大,人类对环境的改造幅度已经很大且地域扩张也很厉害,导致环境变化太大,如乱砍滥伐、过度放牧、不合理开垦(围湖造田、垦荒、湿地开发等)、环境污染使环境不再适应生物生存等使生物的栖息环境遭到破坏,使生物的生活环境越来越少,导致生物种类越来越少,还有滥捕乱杀、偷猎等,也使生物种类减少.因此人类破坏环境的行为最终威胁人类自身.污水一定要净化后再排放,目前,生物圈是所有生物惟一的家园,人类应该保护它. 

故选:C

多项选择题
单项选择题

Phyllis Wheatley is regarded as America’’s first black poet. She was born in Senegal, Africa, about 1753 and brought to America aboard a slave ship at about the age of seven. John and Susannah Wheatley bought her for three pounds at a slave auction in Boston in 1761 to be a personal servant of Mrs. Wheatley. The family had three other slaves, and all were treated with respect. Phyllis was soon accepted as one of the family, which included being raised and educated with the Wheatley’’s twin 15-year-old children, Mary and Nathaniel. At that time, most females, even from better families, could not read and write, but Mary was probably one of the best educated young women in Boston. Mary wanted to become a teacher, and in fact, it was Mary who decided to take charge of Phyllis’’s education. Phyllis soon displayed her remarkable talents. At the age of twelve she was reading the Greek and Latin classics and passages from the Bible. And eventually, Mrs. Wheatley decided Phyllis should become a Christian.At the age of thirteen Phyllis wrote her first poem. She became a Boston sensation after she wrote a poem on the death of the evangelical preacher George Whitfield in 1770. It became common practice in Boston to have "Mrs. Wheatley’’s Phyllis" read poetry in polite society. Mary married in 1771, and Phyllis later moved to the country because of poor health, as a teacher and caretaker to a farmer’’s three children. Mary had tried to interest publishers in Phyllis’’s poems but once they heard she was a Negro they weren’’t interested.Then in 1773 Phyllis went with Nathaniel, who was now a businessman, to London. It was thought that a sea voyage might improve her health. Thirty-nine of her poems were published in London as Poems on Various Subjects, Religious and Moral. It was the first book published by a black American. In 1775 Phyllis wrote a poem extolling the accomplishments of George Washington and sent it to him. He responded by praising her talents and inviting her to visit his headquarters. After both of her benefactors died in 1777, and Mary died in 1778, Phyllis was freed as a slave. She married in 1778, moved away from Boston, and had three children. But after the unhappy marriage, she moved back to Boston, and died in poverty at the age of thirty.

What does the passage mainly discuss

A.Slavery and the treatment of the black people in America.

B.The Wheatley family, including their slaves.

C.The life of America’s first black poet.

D.The achievements of Phyllis Wheatley.