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ESL-52

ESL-53

ESL-54

   English-60A.B

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  Ccontents: 1.Present Time  2. Past Time  3. Future Time
           4. The Present Perfect and The Past Perfect   
           5. Asking Questions  6. Nouns and Pronouns
           7. Modal Auxiliaries 

 3-1 Expressing Future Time(表达将来时间):Be Going To and Will

(a) I am going to leave at nine tomorrow morning.
(b) I will leave at nine tomorrow morning.
(c) Marie is going to be at the meeting today.
(d) Marie will be at the meeting today.
(Today, tonight, and this + morning, afternoon, evening, week, etc., can be express present, past, or future time.)

Be going to and will are used to express future time.
(a) and (b) have the same meaning.
(c) and (d) have the same meaning.
Will and be going to often give the same meaning, but sometimes they express different meaning.

(e) I shall leave at nine tomorrow morning.
(f) We shall leave at nine tomorrow morning.

The use of shall (with I or we) to express future time is possible but infrequent.

 3-2 Form With Be Going To

(a) we are going to be late.
(b) She’s going to come tomorrow.
(c) She will come tomorrow.

Be going to, will  are followed by the simple form of the verb, as in (a), (b) and (c).
Question: be +subject + going to
              will +subject +verb
Negative: be + not +going to
             Subject + will not (won't) +verb
(d) “Hurry up! We're gonna be late!” Be going to is more common in speaking and in informal writing than in formal writing. In informal speaking, it is sometimes pronounced “gonna”/gənə/.“Gonna” is not usually a written form.
 3-3 Sureness About The Future
100% sure (a) I will be in class tomorrow. Or
      I am going to be in class tomorrow.
In (a): the speaker use will or be going to because he feels sure about his future activity. He is stating a fact about the future.
90%  sure (b) Po will probably be in class tomorrow. Or
 Po is probably going to be in class tomorrow.
 (c) Anna probably won’t be in class tomorrow. Or
     Anna probably isn’t going to be in class tomorrow. 

In (b): The speaker uses probably to say that he expects Po to be in class tomorrow, but he is not 100% sure. He’s almost sure, but not completely sure.
Word order with probably:
  (1)In a statement, as in (b):
     Helping verb + probably
  (2)with a negative verb, as in (c):          Probably + helping verb

50%  sure

(d) Ail may (not) come to class tomorrow, or
    I don’t know what     he’s going to do.
(e) Maybe Ail will come to class, and maybe he won't. or
      Maybe
Ail is going to come to class, and maybe he isn’t.

May expresses a future possibility: maybe something will happen, and maybe it won’t happen. In (d): The speaker is saying that maybe Ail will come to class, or maybe he won’t come to class. The speaker is guessing.
Maybe + will/be going to gives the same meaning as may. (d) and (e) have the same meaning.
Maybe comes at the beginning of a sentence.
 
3-4 Expressing The Future In Time Clauses and If-Clauses
                 (time clause )
(a) Before I go to class tomorrow, I’m going to eat breakfast.
(b) I’m going to eat breakfast before I go to class.
In (a) and (b): before I go to class tomorrow is a future time clause.
before
after          
   + subject and verb= a time clause
as soon as
(c) Before I go home tonight, I’m going to stop at the market.
(d) I’m going to eat dinner at 6:00 tonight.
     After I eat dinner, I’m going to study in my room.
(e) I’ll give Rita your message when I see her.
(f) it’s raining right now. As soon as the rain stops, I’m going to walk downtown.
(g) I’ll stay home until the rain stops.
(h) While youre at school tomorrow, I’ll be at work.
The simple present is used in a future time clause. Will and be going to are NOT used in a future time clause.
Incorrect: Before I will go to class, I’m going to eat breakfast.
Incorrect: Before I am going to go to class tomorrow, I’m going to eat breakfast.
All of the example sentences, (c) through (h), contain future time clauses.
( i ) Maybe it will rain tomorrow. If it rains tomorrow, I’m going to stay home. In ( i ): if it rains tomorrow is an if-clause.
            if + subject and verb + an if-clause
When the meaning is future, the simple present (not will or be going to) is used in an if-clause.

 3-5 Using The Present Progressive To Express Future Time

(a) Tom is going to come  to the party tomorrow.
(b) Tom is coming             to the party tomorrow.
(c)  We're going to go       to a movie tonight.
(d)  We're going                to a movie tonight.
(e)  I'm going to stay         home this evening.
(f)   I'm staying                  home this evening.
(g)  Ann is going to fly      to Chicago next week.
(h)  Ann is flying               to Chicago next week.

The present progressive can be used to express future time. Each pair of example sentence has the same meaning.
The present progressive describes definite plans for the future, plans that were made before the moment of speaking.

A future meaning for the present progressive is indicated either by future time words (eg., tomorrow) or by the situation.*

(i) You’re going to laugh when you hear this joke.
(j) Incorrect: You’re laughing when you hear this joke.

The present progressive is NOT used for predictions about the future. In (i ): The speaker is predicting a future event. In (j): The present progressive is not possible; laughing is prediction, not a planned future event.

* Present situation: Look! Mary’s coming. Do you see her?

*Future situation: Are you planning to come to the party?  Mary’s coming.

3-6 Using The Simple Present To Express Future Time

(a). My plane arrives at 7:35tomorrow evening.
(b). Tom’s new job starts next week.
(c) The semester ends in two more weeks.
(d) There is a meeting at ten tomorrow morning.

 The simple present can express future time when events are on a definite schedule or timetable. Only a few verbs are used in the simple present to express future time. The most common are arrive leave start, begin, end, finish, open, close, be.

e) Incorrect: I wear my new suit to the wedding nest week
   Correct: I am wearing/am going to wear my new suit to the wedding next week.

Most verbs cannot be used in the simple present to express future time. For example, in (e): The verb wear does not express an event on a schedule or timetable. It cannot be used in the simple express future time.

 3-7 Immediate Future: Using Be About To

(a) Ann’s bags are packed, and she is wearing her coat. She is about to leave for the airport.
 (b) Shhh. The movie is about to begin.

The idiom “be about to do something” expresses an activity that will happen in the immediate future, usually within minutes or seconds. In (a): Ann is going to leave sometime in the next few minutes.

 3-8 Parallel Verbs(相应 ,或平行的动词)
                V                 and        V
(a) Jim makes his bed   and    cleans up his room every morning.                             

Often a subject has two verbs that are connected by and. We say that the two verbs are parallel:
   + and + V
 makes   and   cleans = parallel verbs

(b) Ann is cooking dinner and (is) talking on the phone at the same time.
 (c) I will stay home and (will) study tonight.   .
 (d) I am going to stay home and (am going to) study tonight.

It is not necessary to repeat a helping verb (an auxiliary) when two verbs are connected by and.

 

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