过去时还是现在时

请教们：In the past，a household is not so rare with four generations living together. 中为什么过去却用is，有人说叙述为了生动，是这样吗？谢谢们了。如题

此句中的现在分词作何成分？

This is because he can make 72 changes to his shape and size, turning himself into different animals and objects.这里句末的现在分词短语是什么成分？具体什么状语？另外，to his shape怎么理解？谢谢专家。...

这个动词不定式作定语还是状语

The headmaster was pleased with what we did. He praised us and also encouraged us to do more to protect the environment.

something nice cooking中的cooking是什么成分

如题

新编高级英语语法P153被动式转换的疑问

support an idea current怎么翻译疑问

They believe the datesupport an idea current among marinebiologists, that of the “shifting baseline”.红色部分要如何理解？激起思想潮流 还是 支持当前的想法？如题

how to do 的疑问

how to do整体是理解为名词吗？我总是习惯还原句子。比如where are you fron 还原就是you are from where,i do not know how to do 还原就是i do not know to do how对吗？其中to do 做宾语，how做副词修饰do,这样理...

同义句转换（涉及非谓语动词、祈使句、独立主格、with复合结构）

各位好，以下是我写的同义句，请问是否有不足？敬请雅正！Q1：3，4，5句的非谓语动词形式是否正确，是否要替换为to do/to be doing/to have done?我更倾向于to having done。Q2：还有其他的同义句形式可以变么？如下...

She has gone to buy some books.这句话里的不定式是目的状语

She has gone to buy some books.这句话里的不定式是目的状语？

not really与really not的语义差别

We don’t really like the teacher.

be sentenced to ..还是主补吗

He was arrested and sentenced to three years in prison. 虽然是被动句,但已经不是不定式了,那这时to three years in prison 还能看作主补吗?如题

这个句子的in the box作什么成分

Here are two pens in the box.

cut across 是什么意思

Cutting across this is the major category contrast.

如何理解such?as?there?is

请分析一下这个句子：As for the literature, painting, and sculpture of Aframericans--such as there is--it is identical in kind with the literature, painting, and sculpture of white Americans; that is,...

这句话怎么怎么翻译呢

Opera artists began using layers of masks made of oiled paper. They could peel one after another in the blink of an eye.

过去分词作定语还是状语

Written and directed by a Chinese actress, the film was adapted from her comedy routine which explored the relationship with her mother.