通过100个单词掌握英语语法(十) be

(1)实义动词:You must be Quentin. It will be sunny tomorrow.
(2)助动词: Will you be using your computer? This report needs to be filed.

语法结构
1   (don't ) be | + 形容词/名词短语
    Be quiet! I'm watching the news.
    Be careful.You'll fall.
    Don't be sad.Don't be an idiot.
    告诉人们如何表现或感受.

2   情态动词 | + be
    It should be a nice day tomorrow.
    Adrian must be in his forties.
    There's somenoe at the door.~Who could that be?
    谈论现在或将来状态的可能性或不确定性。
   
    Can you please be quiet?   
    You must be over 18.
    谈论强制的或必须的现在状态。

3   情态动词 | + be | + -ing
    I'll be staying at the Plaza Hotel.
    It may be raining when we get there.
    Where's Tony? ~He might be watching TV.
    谈论现在或将来活动进行的可能性。

4   情态动词 | + be |+ 过去分词
    New students will be interviewed on Monday.
    These glasses should be washed.
    Mobile phones must be turned off.
    谈论现在或将来可能的、必要的或期待的行为，而无须提及施动者。(
    这是被动语态的一种形式。)

5   动词 | + to be
    When she grows up,she wants to be an architect.
    For once, he managed to be on time.
    You need to be a member.
    接在后跟带to的不定式的动词后面,如want,hope,try,manage等.

搭配
    经常用于语法结构4的分词是:bothered,done,allowed,finished。
    Are you going to basketball practice?~No,I can't be bothered.
    This assignment must be done before Friday.
    You won't be allowed into the club without a tie.
    When will your house be finished?
   
固定短语

    let [...] be 不打扰某人
    Do you think it's time to wake the girls? ~ I would just let them be.
    建议某人不要试图改变某种情况
   
    'to be fair/ to be honset/ to be frank etc' 公平地/坦白地/坦率地等
    Danny never offers to help with the housework.~Yes but to be fair,he does
    all the shopping。
    表明你对接下来要说的话的感受。
   
    ...as can be/...as could be= as much as possible 尽可能
    Now that she has her own home,she's as happy as can be.
   
    [...]-to-be = future 将来的,未来的
    The bride-to-be was wearing pink.
    加在名词如husband,father等的后面.