中考英语知识点：it作形式主语和宾语
A形式主语
⑴It’s+adj.+for/of+sb.todosth.
It’sverykindofyou
It’simportantforyoutolearnEnglishwell.
⑵It’stimeforsb.todosth.
It’stimeforyoutosing
⑶Itseemsthat.....Itseemsthatyouareright.
⑷It’sone’sturn/job/dutytodosth.
It’syourturn/job/dutytocleanthedesk.
⑸It’s+adj.that从句It’snecessary/certain/naturalthathewiilwin.
⑹It’snouse/gooddoingsth.做某事没有用处/好处。
It’snouse/goodeatingtoomuch
⑺It’s+一段时间since+一般过去时态从句或Ithasbeen+sometime+since+一般过去时态从句It’s(been)fiveyearssincewesawlast.
⑻It’sapitythat......It’sapitythatonlysixpiecesofmusicintotalwererecordedforthefutureworldtohear.
⑼Itissaidthat/Itisconsiderthat/Itisbelievedthat......Itissaidthathebecameafamouspianist.
B形式宾语
动词（feel，think，make,believe,consider,suppose等）+it+adj./n.+todosth.
IthinkitnecessarytolearnEnglishwell.