中学英语基本词汇语法解析centre和century和certain等
celebrate ['selɪbreɪt] v. 庆祝，举行
It's my birthday. Let’s celebrate! 今天是我的生日，咱们庆祝一番吧!
【知识拓展】

cent [sent] n. [C]分，一分钱
【知识拓展】
1 dollars=100 cents

centre ['sentə]（美：center）n. [C]①中心，中央；②中点，圆心
They live in the centre of the city. 他们居住在市中心。[in the centre of在……的中心]

century ['sentʃʊrɪ] n. [C]百年，世纪 
We have entered the 21st century. 我们已经进入了21世纪。
背单词的好方法
随时随地背单词
不知不觉背单词
单词不用记

certain ['sɜːt(ə)n] adj. ①确信的，注定的，有把握的；②某种，一定的  
We are not certain whether they will come on time or not. 我们不能确定他们是否能按时来到。[be certain+wh-从句 肯定/确信……]
I am certain he will come. 我确信他会来。[be certain +that 从句 确信……]
She is certain to win an Oscar. 她肯定会赢得奥斯卡金像奖的。[be certain to do sth. 肯定会做某事]
Are you absolutely certain about/ of this? 你对这事绝对确信无疑吗？[be certain about/ of sth. 对某事有把握]
【常用搭配】
make certain弄清楚‖for certain 毫无疑问，肯定地，有把握地

certainly ['sɜːt(ə)nlɪ] adv. ①无疑地，肯定地；②当然，好的
You can certainly use my dictionary. 你当然可以用我的字典了。
—Will you go with me now? 你现在和我一起去好吗？
—Certainly./ Certainly not. 当然可以。/当然不行。[用于回答问题，强调肯定或否定]

ceremony ['serɪmənɪ] n. [C]典礼，仪式
The opening ceremony was a fine spectacle. 开幕式典礼是个壮观的场面。

chain [tʃeɪn] n. [C, U]链子，链条
He wears a fat gold chain around his neck. 他脖子里戴了一条粗大的金链子。

Ⅰ. 根据中文意思完成下列句子，每空一词。
1.一班的学生打算在圣诞节表演一个英语短剧。
Students in Class 1 are going to_____ _____ a short English play on Christmas Day.
2.自信能让我们更加快乐。
_____ ______ _______ ourselves may make us happier.
3.心情总是很差对你的健康有害。
Being ______ _______ ______ ______ all the time is bad for your health.
4.为什么不在生日晚会上给他一个惊喜呢?
Why not______ ______ ______ ______ on his birthday party?
5.快要考试了，让我们做好准备。
The exams are coming. Let's______ ______ ______ _______.

Ⅱ. 选词填空 
（let, be afraid to, put on, give….. a surprise, seem ）
1) I ___ give a speech in public. 
2) _____the students go to school on time. 
3) They can ___ a short play. 
4) Today is my birthday, my family ___me___. 
5) He ____ upset because he has no friends.

Ⅲ. 根据句意及汉语提示，完成下列句子。
1.-Is your mother a nurse?
  -Yes. She takes care of the___(生病的)people in a hospital.
2. Kate's parents are very____(自豪的) of her because she got an “A" in the test.
3.-What do you think of your____ (老板)，Mr. Zhao?
  -He is serious，but kind.
4.-Please show me your ____ (护照)，sir.
  -Here it is.              
5.-Who's that lovely boy，Mr. Li?
  -0h, he's my___ (孙子).His name's Li Bo.

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