辨一辨
take part in 指参加群众性活动、会议等,参加者持积极态度,在活动中起作用
join 指加入某个团体、组织等,并成为其中一员
join in 指参加某些小型的活动或比赛等,也可以用于join sb. in sth.
attend 主要指参加会议、仪式、婚礼、葬礼、典礼或上课、上学、做礼拜、听报告等,强调的是“参加”这一动作本身,不强调参加者的作用
4.In other words,
there are three_times_as_many_girls_as boys.
换句话说,女生人数是男生的三倍。
three times as many girls as为一种倍数表达方式,其构成形式为“倍数+as+many/much+n.+as”。
三种常见表示“倍数”的句型:
(1)倍数+as+adj./adv.的原级+as ...
(2)倍数+adj./adv.的比较级+than ...
(3)倍数+the+性质名词(size/length/width/height/depth ...) +of ...
My farm has expanded into a big one, which is three times as big as the previous one.
=My farm has expanded into a big one, which is three_times_bigger_than the previous one.
=My farm has expanded into a big one, which is three_times_the_size_of the previous one.
我的农场已经扩展成了一个大农场,是原来的3倍大。
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