“unless”、“except”、“except that”、“except for”、“besides”各自的区别是什么?

“unless”、“except”、“except that”、“except for”、“besides”各自的区别是什么? other than 用法是什么等于unless吗还是except 或but except except she couldn't see with her skin__she was blindfold.这句的连词除了用unless能用except吗? The doctor said that the patient would die___he was sent to hospital im-mediatelyA except B unless为什么选B you may go out _________ your homework is done.A.except B.unless C.until D.as __Jenny ,everyone admires him for his great sense of humour gmlxxsesysexcept for apart except unless选哪一个 为什么 [ ] you study harder,you will never pass the final exam a if b until c unless d except 3、The water is unfit for drinking ( ) purified.(本题分数：1 分.)A、 until B、 besides C、 unless D、 except ( )he comes ,we can not do such difficult work .A without B unless C except D even It seems that they do nothing except e＿. she will join us tomorrow evening _she is tooo busy A except B until C unless Difshe will join us tomorrow evening _she is tooo busyA exceptB untilC unless那D为甚不对呢 They would refuse to go away___ the got what they demanded.为什么这里是填unless不是except that ,unless一般不是用于引导否定形式的从句吗? We are going to have a barbecue _______ it rainsA.if not B.when C.except that D.unless选什么,为什么,劳烦把每一项分析一下 shall i tell your best friends what happened to you yesterday?()they ask you为什么选not unless 为什么not if not except not though都不行 You can go out,____you promise to be back before 11 o'clock.A.except B.as long as .C.unless D.so that 选择哪个好? （） we hurry up,we won’t be able to catch the last bus.A、Except B、Without C、Even D、Unless T