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【单选题】

Ever try and get a two-year-old to pick up trash This was our goal this past weekend on a glorious, clear Saturday, the morning of the two-decades old International Coastal Cleanup. Once a year, volunteers from all over the country gather on beaches, baysides, and riverbanks to clean them up. The sponsor of the effort, the Ocean Conservancy, says that to date six million volunteers from around the world have taken over 100 million pounds of trash out of American waters. That sounded a little farfetched until my little family spent a morning on the Potomac River.
We live a few blocks from the storied river. To many, the Potomac, the water that frames the nation"s capital, is a witness and carrier of history. The river is a community builder; along the Mount Vernon trail that runs for miles along the Potomac in Virginia, we meet more neighbors during the week than we would if we went door-to-door.
We want to see the river sparkling clean. We also feel guilty for not performing any kind of community service for the past two years as the kids dominated nearly every waking moment. So we walked over to Daingerfield Island, home of boat docks, soccer fields, and a great view of planes taking off at Reagan National Airport. The National Park Service ranger handed us three large trash bags, three sets of gloves, a long-handled "gripper" for snatching pieces of trash out of reach, and directed us to a portion of the trail where he"d seen "tons of garbage." I still was suspicious.
But in a little over an hour, my husband and I were overwhelmed with plastic cola bottles, rusted tin cans, tennis balls, water bottles, and one size 13 Air Jordan shoe, lightly worn. In about a 30-yard stretch we had our bags filled to the brim, too heavy to transport back to the ranger while managing a two-year-old who kept screaming TRASH! and running in its direction.
We discovered this river garbage can easily conceal itself in vegetation and in the mud of the banks. It can also hide in plain sight if those who put it there just don"t care. Simply put, this trash—or marine debris, if you want to be proper—kills. It destroys not only fish, other marine life and seabirds, but also their homes.
Thoughtlessly discarded on land or from boats in coastal communities, trash finds its way to the water— and bigger bodies of water, in our case, the Chesapeake and ually the Atlantic—and look! A garbage dump at sea. Much of this trash has real "staying power," as the Ocean Conservancy calls it in their findings from a marine monitoring program, and resists decaying. Fish mistake trash for food. Discarded fishing lines or nets entrap sea life, cutting fins (鱼鳍) or strangling them.
My baby, Luke, spent the first hour ing the gripper, his little fingers manipulating the squeeze-handle so the gripper would grip the object of his focus. All told, he "gripped" two plastic bottles and successfully managed to place them INSIDE the bag. The next day we returned to the trail for a walk. When we approached our cleanup area, Luke"s eye widened as he exclaimed, "Pick up trash!"
That"s right, buddy. Good advice. The author decided to take part in cleaning up the river because ______.

A.
she wanted to do some community service
B.
she knew the river was filled with rubbish
C.
she had always been occupied with the kids
D.
she had a deep affection for the fiver
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参考解析:
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刷刷题刷刷变学霸
举一反三

【单选题】下列声调四声不全的一组字是______。

A.
倾、晴、顷、庆
B.
推、颓、腿、蜕
C.
妃、肥、诽、吠
D.
绩、积、挤、技

【多选题】根据国务院药品监督管理部门对已批准生产、销售的药品进行再评价可以作出的决定包括

A.
责令修改药品说明书
B.
暂停生产、销售和使用的措施
C.
罚款
D.
撤销该药品批准证明文件
E.
吊销药品生产企业《药品经营企业许可证》

【多选题】下列关于生活常识的表述,正确的有:

A.
塑料挂衣钩紧贴在墙面上时,塑料吸盘与墙壁间的空气被挤出,大气压强把塑料吸盘紧压在墙壁上
B.
通过检测次声波可以知道地震、台风的信息
C.
夏天雷雨过后,人们会感到空气特别清新,是因为在闪电时,发生了物理变化,空气中的有些氧气变成了臭氧
D.
除大型客车外,绝大多数汽车的前窗都是倾斜的

【单选题】The result of Plateau"s first experiment was that () A.he went permanently blind B.he stopped staring into the sun C.he went blind for a month D.he found what he was looking for

A.
The pleasures which a movie offers to our eyes have been paid for with the loss of sight of a man whose name is hardly known outside the annals of science—Joseph Plateau, a Belgian professor, born in Brussels in 1801.
B.
He studied the mechanism of sight, beginning a series of most dangerous experiments at the age of 28 by staring into the sun for 25 seconds to see what the effect on his eyes would be. He was blind for nearly a month. But he went on experimenting, increasing the length of time during which he looked into the sun, knowing that in the end this would cost him his sight. At the age of 42 he was completely and incurably blind; the sun had destroyed the retina (视网膜) of his eyes. But he continued to work as well as he could until he died at the age of 82.
C.
Science profited enormously from his research. He studied the so-called "inertia of the eye" (视觉暂留) which makes a picture remain on the retina for about one-sixth of a second after it has disappeared from our vision. This means that, if we see a succession of individual pictures each of which appears only for a fraction of a second, they "overlap" in our brain; and if they show consecutive phases of movement, that movement will appear to us to be continuous.

【多选题】依据《大气污染防治法》,为了防治燃煤产生的大气污染,应当采取的措施是______。

A.
在集中供热管网覆盖的地区,不得新建燃煤锅炉
B.
对燃料燃烧过程中产生的氮氧化物采取控制措施
C.
新建的高硫分、高灰分煤矿,必须配套建设煤炭洗选设施
D.
不得制造、销售或者进口超过生产大气污染物排放标准的锅炉