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SAT语法题Captive-bred whooping cranes have no parents to teach

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/15 17:34:49
SAT语法题
Captive-bred whooping cranes have no parents to teach them migratory habits,(this fact explaining why they) must be led on their first migration by human flying microlight aircraft.
但是什么时候可以用 a fact explain 这样的结构呢 .疑惑中
(so they)......很好理解 只是貌似看到过......,the fact........这样的句型
the fact / a fact 跟同位语从句,它本身就是:事实为.
后面再跟 explain 总觉得很矛盾啊,您觉得呢,既然是事实,那还解释什么呢?
所以我建议改成
1)Captive-bred whooping cranes have no parents to teach them migratory habits,
a fact that they must be led on their first migration by human flying microlight aircraft.或
2)Captive-bred whooping cranes have no parents to teach them migratory habits,
explaining (=which explains)why they must be led on their first migration by human flying microlight aircraft.
3)当然没答案来得简洁易懂.
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