doubtless是形容词还是副词，doubtless,单词记忆法、语法用法，与doubtless, 相关例句、名人名言

doubtless是形容词还是副词[1]doubt单词记忆法

◆记忆方法一：谐音：捣他 他怀疑有人背后捣他。◆记忆方法二：联想方式：dou-（都）；bt-（变态）记忆方法：怀疑所有的人都变态。◆记忆方法三：词根词缀记忆法：doubt n 怀疑（doubt二→二种状态→怀疑）,du,dub,doub=two,表示“二，双”查看详情>>

There seemed to be an endless supply of food at the meeting. 会议上好像不断地有食物供应。
He was endlessly kind and patient with children. 他对孩子们总是非常好，很有耐心。
5. fearless—fearlessly
She was fearless in her attacks on public figures. 她对公众人物进行大胆攻击。
They fought fearlessly against the invading armies. 他们无畏地与侵略军作战。[2]against单词记忆法

◆记忆方法一：联想方式：a-（一）gain-（获得）st-（石头）一个人反对获得那块石头◆记忆方法二：分析：again --- 再 ；又 st --- “石头”的拼音首字母； 记忆方法：我反对再让石头当班长。◆记忆方法三：联想方式：a-（一）gain-（获得）st-（石头）记忆方法：一个人反对获得那块石头◆记忆方法四：词根词缀记忆法：against 反对,fusc查看详情>>

6. fruitless—fruitlessly
After months of fruitless inquiry we finally discovered the truth. 经过几个月毫无进展的探索，我们终于发现了事情的真相。
Four years of negotiation ended fruitlessly last December. 历时4 年的谈判在去年 12 月无果而终。
7. harmless—harmlessly
Taken in small doses, this drug is completely harmless. 小剂量服用这种药是完全无害的。
Another missile exploded harmlessly outside the town. 又一枚导弹在城外爆炸，没有造成任何伤害。[3]explode单词记忆法

◆记忆方法一：发音想成“一颗石不漏的”（一颗石头也不漏，全部炸碎）◆记忆方法二：分析：ex——“一休”的谐音；p——“骗”的拼音首字母；lo——像数字 10；de——“德” 的拼音。 记忆：一休骗了 10 个德国兵过去之后，就让炸弹爆炸了。◆记忆方法三：联想方式：ex（外）；plode（鼓掌；拍） 记忆方法：使雷鸣般掌声出来象似爆炸。◆记忆方法四：词根词缀记忆法查看详情>>

8. hopeless—hopelessly
The economic crisis makes jobs almost impossible to find and even able pupils feel hopeless about job prospects. 经济危机使得找到工作几乎成为不可能，就连能力出众的学生都对工作前景不抱希望。[4]find,feel,相关知识点

feel/find/think it adj./n. to do sth. 认为某事……　　在此结构中it为形式宾语，不定式短语作真正的宾语。例如：　　I find it very interesting to play football. 我发现踢足球很有趣。　　She thinks her duty to help us. 她认为帮助我们是她的职责。查看详情>>

I know that if I start watching a soap opera I immediately become hopelessly addicted. 我知道，要是我一开始看肥皂剧，我很快就会无可救药地上瘾。
9. restlessly—restlessly
After listening to him for three hours the audience became restless. 在听他讲了三个小时之后，听众开始变得不耐烦了。
He paced up and down restlessly, trying to put his thoughts in order. 他坐立不安地走来走去，尽力想理清思绪。
10. selfless—selflessly
She will be remembered for her selfless devotion to the cause of the poor. 人们会记住她对扶贫事业的无私奉献。
I’ve never known anyone who cared so selflessly about children. 我从未见过如此无私地关心孩子的人。
11. thoughtless—thoughtlessly
It was thoughtless of you to forget your sister’s birthday. 你太疏忽了，连自己妹妹的生日也给忘了。
Nobody is perfect, and everyone acts thoughtlessly on occasion. 人无完人，谁都难保不偶尔疏忽一次。
12. useless—uselessly
It’s useless trying to convince her (that) she doesn’t need to lose any weight. 要让她相信她无需减肥是徒劳的。
Uselessly, he checked the same pockets he’d checked before. 他把先前检查过的那些口袋又查了一遍，毫无收获。


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doubtless相关单词意思与记忆法：

doubtless单词意思解释释义：
a. 无疑的, 确定的ad. 无疑地, 确定地