以上题目中的where与why可以借助中文语义来区分,where“……的地方”,why“……的原因”。— His parents try to do everything for him— That’s ___ they are mistaken. (译文:这正是他们做错的地方/错误之处。)试比较:— That's ___ he cannot live on his own even now. (译文:这就是他到现在也无法独立生活的原因。)
回答于 2022-10-23 10:41
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