an area...是around 40,000 sq km的同位语,解释说明around 40,000 sq km(单纯的数字比较抽象)大概是多大的样子(比较形象)。
回答于 2022-10-23 10:33
to which与fixed the strings构成fix something to something短语,意思为“将某物固定于某物”。这里的which引导定语从句,先行词可能是corners。
回答于 2022-10-22 23:33
构词法为基于“动词+小品词”的短语动词,把动词变成ing形式,用法既可以同形容词,也可以同名词。尽量用英语本族语人士已经造过的词。
回答于 2022-10-22 23:26
But daily vertical movements by zooplankton in the ocean — upward by night to seek food, downward by day to escape predators — can also be considered migration. So can the movement of aphids when, having depleted the young leaves on one food plant, their offspring then fly onward to a different hos...
回答于 2022-10-22 23:20
不同语法资料有不同看法,个人倾向于将it视为真正主语,表示某种情形。具体原因:1) if在这里的意思是表示条件假设的“如果”。“如果”要是也能当主语,势必引起一定的混乱,这种混乱没有必要。2)主句与状语从句的位置可以互换。If you can take an active part in your class, it will be helpful.
回答于 2022-10-22 23:10
The WestLake attracts a large number of visitors every year.西湖每年吸引很多游客来参观。
回答于 2022-10-22 22:54
“补充完整”为than (points) would otherwise have been necessary。比较标准是points,而比较标准属于强制省略范畴。
回答于 2022-10-22 22:52
如果是He is at a loss what he should say.,可能我们会类比He has no idea what he should say.,将其视为同位语从句。因此,这里也可以视为同位语。如果是He is at a loss as to what to say / what he should say.,as to what to say之类则又会被视为方面状语。语法结构似乎有所变化,语义却没怎么变化。我们需要掌握...
回答于 2022-10-22 21:43