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Unit 10 Online Practice Exercises & Review


Unit 10
1. CONDITIONALS
A) First Conditional: Real Possibility
We are talking about the future. We are thinking about a particular condition or situation in the future, and the result of this condition. There is a real possibility that this condition will happen. For example, it is morning. You are at home. You plan to play tennis this afternoon. But there are some clouds in the sky. Imagine that it rains. What will you do?
IF
CONDITION
RESULT

  PRESENT SIMPLE
WILL + BASE VERB
If
it rains
I will stay at home.

Notice that we are thinking about a future condition. It is not raining yet. But the sky is cloudy and you think that it could rain. We use the present simple tense to talk about the possible future condition. We use WILL + base verb to talk about the possible future result. The important thing about the first conditional is that there is a real possibility that the condition will happen. Here are some more examples (do you remember the two basic structures: [IF condition result] and [result IF condition]?):
IF
CONDITION
RESULT

PRESENT SIMPLE
WILL + BASE VERB
If
I see Mary
I will tell her.
If
Tara is free tomorrow
he will invite her.
If
If they do not pass their exam
their teacher will be sad.
If
If it rains tomorrow
will you stay at home?
If
If it rains tomorrow
what will you do?

RESULT
IF
CONDITION
WILL + BASE VERB

PRESENT SIMPLE
I will tell Mary
if
see her.
He will invite Tara
if
she is free tomorrow.
Their teacher will be sad
if
they do not pass their exam.
Will you stay at home
if
it rains tomorrow?
What will you do
if
it rains tomorrow?

B)  Second Conditional: Unreal Possibility Or Dream
The second conditional is like the first conditional. We are still thinking about the future. We are thinking about a particular condition in the future, and the result of this condition. But there is not a real possibility that this condition will happen. For example, you do not have a lottery ticket. Is it possible to win? No! No lottery ticket, no win! But maybe you will buy a lottery ticket in the future. So you can think about winning in the future, like a dream. It's not very real, but it's still possible.
IF
CONDITION
RESULT

PAST SIMPLE
WOULD + BASE VERB
If
I won the lottery
I would buy a car.

Notice that we are thinking about a future condition. We use the past simple tense to talk about the future condition. We use WOULD + base verb to talk about the future result. The important thing about the second conditional is that there is an unreal possibility that the condition will happen.
Here are some more examples:
IF
CONDITION
RESULT

PAST SIMPLE
WOULD + BASE VERB
If
I married Mary
I would be happy.
If
Ram became rich
she would marry him.
If
it snowed next July
would you be surprised?
If
it snowed next July
what would you do?

RESULT
IF
CONDITION
WOULD + BASE VERB

PAST SIMPLE
I would be happy
if
I married Mary.
She would marry
if
he became rich.
Would you be surprised
if
it snowed next July?
What would you do
if
it snowed next July?

Note” Sometimes, we use should, could or might instead of would, for example: If I won a million dollars, I could stop working.
C) Third Conditional: No Possibility
The first conditional and second conditionals talk about the future. With the third conditional we talk about the past. We talk about a condition in the past that did not happen. That is why there is no possibility for this condition. The third conditional is also like a dream, but with no possibility of the dream coming true.
Last week you bought a lottery ticket. But you did not win. :-(

CONDITION
RESULT

PAST PERFECT
WOULD HAVE+ PAST PARTICIPLE
If
I had won the lottery
I would have bought a car.

Notice that we are thinking about an impossible past condition. You did not win the lottery. So the condition was not true, and that particular condition can never be true because it is finished. We use the past perfect tense to talk about the impossible past condition. We use WOULD HAVE + past participle to talk about the impossible past result. The important thing about the third conditional is that both the condition and result are impossible now.
Note: Sometimes, we use should have, could have, might have instead of would have, for Example: If you had bought a lottery ticket, you might have won.
Look at some more examples in the tables below:
IF
CONDITION
RESULT

PAST PERFECT
WOULD HAVE + PAST PARTICIPLE
If
I had seen Mary
I would have told her.
If
Tara had been free yesterday
I would have invited her.
If
they had not passed their exam
their teacher would have been sad.
If
it had rained yesterday
would you have stayed at home?

it had rained yesterday
what would you have done?

RESULT
IF
CONDITION
WOULD HAVE + PAST PARTICIPLE  

PAST PERFECT
I would have told Mary
if
I had seen her.
I would have invited Tara
if
she had been free yesterday.
Their teacher would have been sad
if
they had not passed their exam.
Would you have stayed at home
if
it had rained yesterday?
What would you have done

it had rained yesterday?

D) Zero Conditional: Certainty
We use the so-called zero conditional when the result of the condition is always true, like a scientific fact.
Take some ice. Put it in a saucepan. Heat the saucepan. What happens? The ice melts (it becomes water). You would be surprised if it did not.

CONDITION
RESULT

PRESENT SIMPLE
PRESENT SIMPLE
If
you heat ice
it melts.

Notice that we are thinking about a result that is always true for this condition. The result of the condition is an absolute certainty. We are not thinking about the future or the past, or even the present. We are thinking about a simple fact. We use the present simple tense to talk about the condition. We also use the present simple tense to talk about the result. The important thing about the zero conditional is that the condition always has the same result.
We can also use when instead of if, for example: When I get up late I miss my bus. Look at some more examples in the tables below:
IF
CONDITION
RESULT

PRESENT SIMPLE
PRESENT SIMPLE
If
I miss the 8 o'clock bus
I am late for work.
If
I am late for work
my boss gets angry.
If
people don't eat
they get hungry.
If
you heat ice
does it melt?

RESULT
IF
CONDITION
PRESENT SIMPLE

PRESENT SIMPLE
I am late for work
if
I miss the 8 o'clock bus.
My boss gets angry
if
I am late for work.
People get hungry
if
they don't eat.
Does ice melt
if
you heat it?

Online Practice

2. What is inversion?
Inversion involves swapping (inverting) the position of the auxiliary verb and the subject in a sentence.
Used in
A.           Questions
B.            Emphasis
C.            Conditional sentences

A. QUESTIONS
The most common use of inversion is forming questions (interrogative sentences).
Example: You are going somewhere
                  Are you going somewhere?

AFFIRMATIVE SENTENCE
QUESTION
Earth is small compared to other planets
Is Earth small compared to other planets?
I am thirsty
Am I thirsty?
My name is Mark
Is my name Mark?

If there is no auxiliary verb in the sentence, one needs to be added when you invert the word order.
Examples
AFFIRMATIVE SENTENCE QUESTION
AFFIRMATIVE SENTENCE QUESTION
Andrew had health problems
Did Andrew have health problems?
It belongs to Emma
Does it belong to Emma?
She looked tired
Did she look tired?

 B. EMPHASIS
Use inversion to show emphasis.

Examples
•Little did she know how much work was left.
On no account must you sleep at school.
Never should you forget who your boss is.
Only then can you belong to me.
•Here comes the sun.

Note:
The structure is rarely used in spoken English. Most often, you will find it in books.

In this article, we're going to have a look at inversion that sometimes takes place with certain adverbs and adverb phrases, mostly with a negative or restrictive sense. Such adverbs (adverb phrases)  can be placed first in a sentence or clause for emphasis. They are then  followed by the interrogative (i.e. inverted ) form of the verb.

The most important of these adverbs include:

hardly ever     
never                                       
scarcely ever
only by
in no circumstances                   
only in this way on no account
hardly . . . when
only then/when no sooner . . . than       
scarcely . . . when
not only                                   

seldom
nowhere
not till                                    
so
neither/nor

Examples of how to use them:
I had never before been to lie. = Never before had I been asked to lie.
a) / haven't got any money.  b) Neither/Nor have I.
They not only rob you, they smash everything too. = Not only do they rob you, they smash everything too.
She became so depressed that . . . = So depressed did she become that. . .
This switch must not be touched on any account. = On no account must this switch be touched.
Mike didn't realize how difficult how situation was till he received the letter. = Not till he received the letter did he realize how difficult his situation was.

Also note  that a second negative verb in a sentence can sometimes be expressed by nor with inversion:
She had no friends and didn't know anyone who could help her. = She had no friends, nor did she know anyone who could help her.

C. CONDITIONAL SENTENCES
Inversion is also used in formal conditional sentences. In formal English, conditional sentences can be formed by inversion of the subject and the auxiliary verb. In such sentences, if is removed.

For example, these two sentences are (almost) the same:

Normal Conditional Sentence               =         Conditional Sentence with Inversion 
If I were taller, I would be happier.      =          Were I taller, I would be happier. 

We can use inversion in unreal present as well as unreal past.

UNREAL PRESENT

•Were I you, I would visit my grandfather.

UNREAL PAST

•Had I known this fact before, I wouldn't have come here.
•Had Jake been informed about the meeting, he would have participated.

Examples
•Were I you, I would visit my grandfather.

Online Practice



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