帮忙讲解一道高一英语时态题---If I

网友回答

虚拟语气在if条件状语从句中.如果与现在事实相反,则条件从句谓语用动词的过去式（be的话用were）,主语谓语用 should/ would /could/ might + 动词原形.则答案为
sawwouldn't be would climb
======以下答案可供参考======
供参考答案1:
had seen
would not be
would供参考答案2:
sat notbe climber
供参考答案3:
---If I ____saw___(see)a tiger walking acrosshyde park,I would climb a tree.
---That __wouldn't be___(not be)any use .The tiger___would climb___(climb)after you.
供参考答案4:
saw wouldn't be would climb
整个对话都是在假设的情况下的
要用虚拟语态 动词和情态动词都用过去式
供参考答案5:
第一个是一个虚拟语气的用法，如果表违背现在事实的假设，条件从句用过去时，主句用should或would加动词原形，如果是表违背将来事实的假设，条件从句用should加动词原形或者were加动词不定式，主句还是should或would+动词原形，你结合文章要判断一下是那个，如果是第一种，答案就是saw，第二种答案就是should see或者were to see
第二个用shouldn't be和would climb同时表假设