An international treaty signed several years ago （ ）trade in plants and animals of endangered species.
A.bans B.eliminates C.promotes D.protects
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An international treaty signed several years ago （ ）trade in plants and animals of endangered species.
（ ）it is generally agreed that sex-role stereotyping contributes to narrowly defined expectations about human potential, limited career options for males and females, and mixed messages about the world which contradict daily life experience, the social costs of such stereotyping have not been fully explored in the educational arena.
This river is so wide that it is impossible to build a （ ）under it without modem technology.
After a few short but interminable seconds, U. S. Astronaut Neil Armstrong placed his foot firmly on the fine-grained surface of the moon. The time was 10： 56 pm, July 20, 1969.
The importance of interior design becomes （ ）when we realize how much time we spend surrounded by four walls.
Gray clouds move as low as smoke over the treetops at Lolo Pass. The ground is white. The day is June 10. It has been snowing for the past four days in the Bitterroot Mountains. Wayne Fairchild is getting worried about our trek over the Lolo Trail—95 miles from Lolo Montana to Weippe in Idaho, across some of the roughest country in the West. Lewis and Clark were nearly defeated 200 years ago by snowstorms on the Lolo. Today Fairchild is nervously checking the weather reports. He has agreed to take me across the toughest, middle section of the trail—“but with this weather? ’’When Lewis climbed atop Lemhi Pass, 140 miles south of Missoula, on Aug. 12, 1805, he was astonished by what was in front of him: “immense ranges of high mountains still to the West of us with their tops partially covered with snow” Nobody in what was then the US knew the Rocky Mountains existed, with peaks twice as high as anything in the Appalachians back East. Lewis and Clark weren’t merely off the map; they were traveling outside the American imagination.Today their pathway through those mountains holds more attraction than any other ground over which they traveled, for its raw wilderness is a testimony to the character of two cultures: the explorers who braved its hardships and the Native-Americans who prize and conserve the path as a sacred gift. It remains today in virtually the same condition as when Lewis and Clark walked it.The Lolo is passable only from July to mid-September. Our luck is holding with the weather, although the snow seeps getting deeper. As we climb to Indian Post office, the highest point on the trail at 7,033 ft., the drifts are 15 ft, and up. We have covered 12 miles in soft snow, and we barely have enough energy to make dinner. After a meal of chicken and couscous, I sit on a rock on top of the ridge. There is no light visible in any direction, not even another campfire. For four days we do not see another human being. We are isolated in a way that mixes fear with joy. In our imagination we have finally caught up with Lewis and Clark.1.We learn from the passage that before 1805 （ ）.2.Judging from the context, the word “trek” (Line 3, Para. 1) is closest in meaning to（ ）.3.We learn from the passage that the Lolo Pass （ ）.4.Judging from the context. Lewis and Clark were most probably （ ）.5.We can infer from the passage that in crossing the Lolo Pass the author（ ）.
