關(guān)于英語的知識（請回答以下問題）
1."protect the innocent"中"protect"是_____動詞（填及物或不及物）,innocent是_____詞,為什么可以用來作賓語_________________________.
2."he wanted to make jill go to jail instead of himself.（其中"instead of 被劃線了"）"劃線部分表達前后兩個狀況是_____（填相同或相反）,前面狀況是_____,后面狀況是_____（填肯定或否定）.
3.動名詞和動詞不定式用于_____后面,使用動詞不定式或動名詞取決于_____.
4.總結(jié)不定式在句中充當(dāng)什么成分：
(1)it is not easy to sing a song in english.
(2)his duty is to look after this baby.（請翻譯）
(3)we decided to have lunch.
(4)they have lots of things to do.
5.舉出生活中較為常用的含有不定式的詞組并造句（最少四個）.
6.總結(jié)名詞在句中充當(dāng)什么成分：
(1)learning by heart is the most important way to study english well.（請翻譯）
(2)he forgot leaving his key on the table when he left.
(3)my favourite subject is playing table tennis.
(4)this washing machine is the most expensive in the shop.
7.舉出生活中較為常用的后接-ing的詞組并造句（最少四個）.