the fact.
关于这个事实毫不怀疑。

⑹There is no doubt that he is hard to deal with.
毫无置疑他很难对付。

考题链接：
There can be no doubt ____ the woman is fit for the work.
A. that B. if C. what D. because

分析：doubt用于否定句、疑问句中接that从句。
答案：A

6.experiment
* n. “实验，试验”
do/perform/carry out/conduct an experiment进行实验
learn by experiment 通过实验学习
experiment还常与on/upon 搭配

eg.
The researchers are repeating the experiment on rats.
研究人员用老鼠反复做该实验。

*　vi. “实验，试验”
experiment on/upon sb./sth. 对…进行实验

eg.
We experimented until we succeeded in mixing the right colour.
我们不断实验直至将所需要颜色调配成功。

They experimented on/upon frogs.
他们用青蛙做实验。

*
experimenter 　 n.  实验者,试验者
experimentalism  n. 实验主义，经验论
experimental adj. 　实验的，用实验的
an experimental farm实验农场
an experimental physicist　 实验物理学家

eg.
The technique is still at the experimental stage. It hasn’t been fully developed yet.
这项技术仍处于实验阶段，尚未完全成熟。

7.tear
*v. 撕扯，撕裂；飞奔，飞跑；强行使某人离开…
tear …in two  把…撕成两半
tear…into pieces  把…撕成碎片
tear…open  把…撕开
tear one’s hair （out）　 表示极大的悲伤、愤怒
tear oneself away（from sb./sth） 舍不得离开某人/某事物
tear down　 拆除
tear sth. up 　 撕毁（文件等）

⑴He tore the parcel open.
他把包裹撕开。

⑵Can you tear a sheet of paper in two?
你能把一张纸撕成两半吗？

⑶The baby likes tearing paper into pieces.
婴儿喜欢把纸撕成碎片。

⑷This cloth tears easily.
这布料容易撕破。

⑸Her heart was torn by grief.
她肝肠寸断。

⑹My boss is tearing his hair out about the delay in the schedule.
我们老板因进度拖延而气得七窍生烟。

⑺Do tear yourself away from the television and come out for a walk.
你别舍不得离开电视了，出去散散步吧。

⑻The book was so interesting that I couldn’t tear myself away from it.
这本书如此有意思以至于我爱不释手。

⑼They are tearing down the old houses.
他们正在拆除旧房屋。

⑽She tore up all the letters he had sent her.
她把他写来的信都撕了。

⑾She tore downstairs , shouting “Fire！”
她奔下楼梯，高喊‘着火了’。

* n. 泪水（常用复数）
be wet with tears 　眼泪汪汪
burst into tears 　 放声大哭
in tears（表示状态） 哭泣
crocodile tears 鳄鱼的眼泪（假悲伤）

⑴Her eyes filled with tears.
她眼泪汪汪的。

⑵The story moved us to tears.
这个故事感动得我们流泪。

⑶Hearing his voice, she burst into tears.
听到他的声音，她放生大哭起来。

⑷We found her in tears.
我们发现她在哭。

⑸She shed crocodile tears when she dismissed him from his job.
她把他解雇时，流出了鳄鱼的眼泪（假装难过）。

*tearful adj. 哭泣的
eg.
a crowd of tearful mourners 一群哭泣着的送葬者

8.promise
* n. 允诺，答应 后面可接of + n. ; to do sth.; that同位语从句等
eg.
⑴His parents gave him promise of support.
他父母答应支持他。

⑵Don’t forget your promise to write to me every month.
别忘了你答应要每个月给我写信。

⑶He made a promise that he would write to me every month.
他允诺要每个月给我写信。

常用搭配：
make a promise 许诺
make a promise to do sth. 许诺做某事
break one’s promise　 违背诺言
keep one’s promise　  遵守诺言
give a promise 许下诺言
make a promise that…　许诺做某事
carry out one’s promise 　履行诺言

* n. 可指望出现或发生某事物的迹象，希望
eg.
⑴There is a promise of better weather tomorrow.
明天天气可能更好。

⑵There seems little promise of success for the expedition.
看来这次探险的成功希望不大。

⑶The crops are full of promise.
庄稼丰收在望。

* vt./vi. 允诺，答应；使（某事物）很有可能
常用于：
promise sb. sth. 答应某人某（事）物
promise sb. to do sth. 　答应某人做某事
promise to do sth. 　答应做某事
promise + n.  答应…
promise （sb.） that… 答应（某人）…
I promise you 口语中表示‘我向你保证’
promise well　大有希望，可能产生良好的结果

⑴I have promised him to return the book by next Monday.
我已答应他要在下周一前还书。

⑵The firm promised the workers a wage increase.
公司答应给工人加工资。

⑶She promised me that she would be punctual.
她向我保证一定准时。

⑷No one in the office promised a quick answer to the matter.
办公室没人答应对此事从速作答。

⑸The clouds promise rain.
阴云预示有雨。

⑹The new sales policy promises well.
新的销售办法可望取得良好效果。

⑺You won’t regret it, I promise you.
我包你满意。

* promising adj. 有前途的，有希望的
⑴He is a promising young pianist.
他是一个有前途的青年钢琴家

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