1) "多达"。I can take up to four people in my car.

2) "不多于，不迟于"。Read up to page 109.

3) "可与某事物相比，比得上"。：As a doctor， he is not up to Mr. Smith.

4) "有某种能力的，能胜任的"。例如：He's not up to the part of Othello.

5) "从事于，忙于"。What's he up to？

6) "由......决定，由......负责"。It's up to you whether we accept the present or not.

7) "（时间）直到"。Up to now he's been quiet.

8) 后面接表示时间、日期的名词时，意为"跟得上形势，时髦"。Most of her clothes are up to date.

9) 后面接表示刻度、标准的词语时，意为"达到某种要求或水平"。Is their spoken English up to the company's standard？

6.whatever和no matter what的区别

。whatever可以引导让步状语从句，也可引导名词性从句。whatever引导让步状语从句时，可以换成no matter what; 引导名词性从句时，相当于anything that, 不能用no matter what替代，因为no matter what只能用来引导让步状语从句。

7.be sure意为"肯定；确定"，be sure后可跟不定式或"疑问词+不定式"，构成be sure to do，be not sure whether to do结构，要注意"疑问词+不定式"一般用在否定句中。be sure后还可跟从句，肯定句后跟that从句，否定句后跟if /whether从句。由于be是系动词，形容词作标语的时候通常强调状态，因此，be sure一般强调"对某事物的确定或确信"

make sure表示"务必"，"确信"，"弄明白"，后面常接 of/about sth.或that引导的宾语从句。make sure后通常不接不定式。因为make本身是使令性动词，所以，make sure本身就具有"使某事情确定，或使某事一定发生"的含义。

1.The agreement the two parties have ________ will make both favorable.

A. reached B. arrived C. got D.taken

2.―Where _______ little Tom be now?

-I wonder what he _________.

A. can； is up to B. must； is about

C. may； is doing D. must； playing

3.―Can you persuade your brother to go with us?

―No, he will never do ________ he is asked to do.

A. whenever B. whatever

C. no matter what D.whichever

4.I________that all windows are shut.I did it.

A.make sure B.am sure C.make clear D.am clear

5.Do you know even the ordinary things can ________the most breathtaking stories?

A. show B.describe C.tell D.say