82. I think that the meal is well ____________(没有折扣的情况下值80美元).
83. _________________(面对来自其他公司的激烈竞争), the automobile manufacturer is considering launching a promotion campaign.
84. As far as hobbies are concerned, Jane and her sister _______________(几乎没有什么共同之处).
85. Only after many failures_____________________(我才认识到仅凭运气是不能成功的).
86. But for the survival instinct which nearly all creatures have, __________(更多的物种就可能已经在地球上灭绝了).

参考答案:

82. worth 80 dollars without a discount

【解析】well worth，“值”，后跟动名词或名词；discount折扣。

83. Facing the fierce competition from other companies

【解析】现在分词形式表伴随状态。

84. almost have nothing in common

【解析】have nothing in common没有共同点，属于固定短语。

85. have I realized that I cannot succeed with luck merely

【解析】本题考查only位于句首的倒装。这里强调的是过去的事情对现在造成的影响“不能成功”，因此应用现在完成时态。

86. more species would have been extinct from the earth

【点评】but for，“要不是，如果没有”，这里考查虚拟语气，后面应该用would + have done的形式，强调这种非真实的虚拟对将来可能发生的情况的影响。