答案Birds usually migrate(迁徙)fromnorth to south.解析根据常识,鸟类常常是从北方往南方迁徙 。这里需要填一个表示方向的名词,“北方” 对应的英文单词是 “north” ,所以空格处应填 “north”。 句子意思是 “鸟类通常从北方迁徙到南方”。反馈 收藏 ...
Migration(迁徙) is common: butterflies fly across the Americas, birds migrate south in winter…but did you know that forests migrate, too? In his new book The Journeys of Trees, science writer Zach St. George explores an extremely slow migration, as forests move inch by inch to more pleasan...
For much of the past 2 million years, ancestors of a keen-eyed raptor known as the Swainson's hawk have circled above the vast grasslands of the Western Hemisphere.For the past 15 years, Brian Woodbridge has been studying the hawks and their annual migration to and from South America from...
G. The birds that migrate south in winter return to different places when weather is warm. 试题答案 在线课程 小题1:D小题2:C小题3:A小题4:F小题5:B 试题分析:文章介绍鸟类迁徙的原因和方式,还有一些鸟不用迁徙,为了让鸟类更好迁徙,有必要保护河口和湿地。小题1:考查句意理解和上下文:根据上文...
Arctic tern: A bird that migrates from the Arctic to the Antarctic and back each year. pileated woodpecker: A large woodpecker with a distinctive red crest. greater spotted woodpecker: A common woodpecker in Europe known for its black and w...
B Migration(迁徙) is common: butterflies fly across the Americas, birds migrate south in winter. . . but did you know that forests migrate too?In his new book The Journeys of Trees, science writer Zach St. George explores an extremely slow migration, as forests move inch by inch to more...
(B)请阅读下面短文,从每小题所给的 A、B、C三个选项中,选出一个最佳选项。You all know that birds migrate(迁徙) according
For example, the fruit of most fleshy- fruited plants in Europe ripens at a time that coincides with when birds migrate south towards the Equator7. Perhaps the most striking feature of these inferred seed movements is the observation that 35% of plant species across European communities, which...
Southerly bird populations generally are nonmigratory or make short migrations, whereas more northerly ones travel farther south. The females of some species winter farther south than the males. In many species that reproduce at an age of one year or older, those individuals under the breeding age...
Some 500 million birds migrate each year from Africa, some weighing as little as nine grammes (three-tenths of an ounce). To complete a voyage that can be thousands of kilometres long, birds have tofatten5themselves up to twice their normal weight. Some even shrink their internal organs to...