i cannot think of anyone with a better voice为什么用

亲，这是“比较级”用法，在本句表示“最高级”。即无法想像之“大声说话”，或“高音”。

否定句加better其实就是最高级的表达

完全正确，语法有没有错误。
I cannot think of anyone with a better voice=He is the best singer；
英语结构cannot +more构成肯定句，而且表示最高级；eg.
we cannot praise him more，再表扬他也不为过，相当于给予他最高的表扬。

没有问题的。可以这样描述。
I cannot think of anyone with a better voice.
我想不出有谁能够发出更好的声音了。

把can not 改成 don't

《逻辑哲学论》 自译版 1
(A logical entity cannot be merely possible. Logic treats of every possibility, and all possibilities are its facts.)Just as we cannot think of spatial objects at all apart from space, or temporal objects apart from time, so we cannot think of any object apart from the ...

勇敢励志的英语美文摘抄?
Life Confucius of old, I am absorbed in the wonder of earth, and the life upon it, and I cannot think of heaven and the angels. I have enough for this life. If there is no other life, than this one has been enough to make it worth being born, myself a human being. With so ...

关于金钱的英文名言
I cannot think of any need in childhood as strong as the need for a fathers protection. -- Sigmund Freud 我想象不出还有什么比父亲的保护更让一个孩子渴求得强烈。-- 西格蒙特-佛洛依德 It is a wise father that knows his own child -- the bottoms of his feet, a man who came ...

thinkof和thinkabout的区别
think of和think about之间的区别 （1）表达相关不同意思时，不可替代 1. 意思作为想要，关心，想起时，只能用think of。2. 意思作为回想和考虑时，只能用think about。（2）在以下情况时，两者的意思是相同的：1. 考虑，如： Don't think of\/about me any more. 不要再考虑我。2 .对……有...

英语阅读短文
Another expression people use to say they are controlling their anger is “biting their lip”. This means not letting the bad words come out of their mouth. If you cannot think of anything but bad words, it（形式主语） is probably best to “bite your lip.” But sometimes ...

think和think of在疑问句的区别
(5)当think与其他动词并列使用时。如：I think and hope that I’m not disturbing you too much.我认为同时也希望我没有打扰你太多。(6)当从句的否定构成某种特殊句型时。如：I think that he cannot do the work too well.我认为这项工作他干得越出色越好。think of 1.Think of prayer as ...

请教一道英语题:what do you think of…
在这里先注意词组think of的意思是"想到, 考虑, 想象, 设想, 打算, 认为"，你这个句子应注意句型what do you think of...?是提问对方对某人或某物的看法。如what do you think of Jim？（你觉得吉姆这人怎么样？）；what do you think of Beijing？（你觉得北京这个城市如何？）。另外，你...

用英语概述小沙弥
eight or nine years forgot my rain village road:" your face looks very familiar tight, but cannot think of it at the moment. " What kind of laughed: "you're the origin of Guirenduowang Shi, forget not remember when the bottle gourd temple?" Rain village to listen to, suc...

think和think of的区别
→ I don't THINK.c. [疑问词+do you ~?] 想…?Who do you ~ is goingwith us?.你想谁会跟我们去?What do you ~ hashappened?.你以为发生了什么事?d. 认为[…]如何?[of, about]What did you ~ of hisspeech?.你认为他的演讲怎么样?I wonder what they will~ about this ...

think和think of有什么区别
We thought it our duty to take care of the orphans.我们认为照顾这些孤儿是我们的职责。They thought the novel worth reading.他们认为这本小说值得一读。I think he will come.我想他会来的。3. (常与cannot, could not连用)想像;理解[+wh-]I can't think what you mean.I can't think...