Grammar 25 Rules

Question 1

1.1 Purpose เพื่อที่จะ

Answer 1

to
in order to + v1
so as to
We will go to the seaside to/in order to/so as to relax.

Question 2

1.2 Purpose เพื่อที่จะไม่

Answer 2

in order not to + v1
so as not to

We took an umbrella in order not to/so as not to get wet.

Question 3

1.3 Purpose เพื่อที่จะ (สองประโยค)

Answer 3

in order that
so that + S + helping verb + V1

I always send Christmas cards early in order that/so that they will arrive on time.

I sent my Christmas cards early in order that/so that they would arrive on time.

Question 4

1.4 Purpose มากเสียจนกระทั่ง

Answer 4

so + adj/adv + that + S + V

He is so tired that he cannot do this homework.

Question 5

1.5 Purpose มากเกินไปที่จะ (too)

Answer 5

too + adj/adv + to-inf

He is too tired to do his homework.

John lectures too quickly for the audience to understand.

Question 6

1.6 Purpose มากเกินไปที่จะ (such)

Answer 6

such (a) + adj + N + that + S + V

He is such a quiet boy that he never speaks up in class.

Question 7

1.7 Purpose มากเสียจนกระทั่ง (many/much)

Answer 7

so many/few + pl cn + that +s + v
so much/little + sing un

He has so, few friends that he always spends most of his time by himself.
The owner of this house has so much free time that he always goes to Paris for a vacation.

Question 8

1.8 Purpose เพียงพอที่จะ

Answer 8

adj/adv + enough (for someone) + to-inf

The boy is tall enough to reach the apples.

enough + N + (for someone) + to-inf

He had enough time to go over the lesson.

Question 9

2.1 If-clause

แบบที่ 1 Fact

Answer 9

If + present sim , present sim

If we heat water. It boils.

Question 10

2.2 If-clause

แบบที่ 2 ถ้าสิ่งใดเกิด อีกสิ่งก็จะเกิดตามไปด้วย

Answer 10

If + present sim ,will + V1

If you eat too much , you will be sick

Question 11

2.3 If-clause

แบบที่ 3 ใช้ตรงข้ามความจริงในปัจจุบัน/อนาคต/และใช้ในกรณีขอร้องเชิงสุภาพ/offer service

Answer 11

If + past simple + would + v1

If I were the king , I would help the poor.

I would appreciate it if you signed this doc

Would I be better if I took care of your children during your vacation.

Question 12

2.4 If-clause

แบบที่ 4 ตรงข้ามกับความจริงในอดีต

Answer 12

If + past perfect, would have + V3

If they had behaved well last week, their parents would have taken them to the cinema.
= They didn’t behave well last week, so their parents did not take them to cinema.

He would have come if I had asked him
= He didn’t come because I didn’t ask him.

Question 13

2.5 If-clause

แบบที่ 5 ข้างหน้าตรงข้ามกับอดีต ข้างหลังตรงข้ามกับปัจจุบัน/อนาคต

Answer 13

If + past perfect + would + V1 + now

If Linda had driven more slowly, she would not be in prison now.

Question 14

3.Participial Construction

ทำมาจาก Relative Clause หรือ subordinate Clause บอกเวลาและสาเหตุ

Answer 14

1. Ving (active)
2. V3 (passive)
3. Having + V3 (active)
4. Having been + V3 (passive)
   (3&4 ทำจากประโยค Present หรือ Past Perfect)
   Absolute Construction (ประธานคนละตัวห้ามตัดออก)
   The sun having set. they set off.

Question 15

4.1 Comparison Positive degree

Answer 15

1 S + V + the same + N + as + S (+V)/obj
He has the same hair color as I (do)/me.
2 S + V + as + adj/adv + as +S (+V)/obj
He is as tall as I (am)/me.

Question 16

4.2 Comparative degree ขั้นกว่า

Answer 16

1 S + V + not + the same + as + S (+V)/obj.
+ as + adj/adv + as + S (+V)/obj.
2 S + V + adj(er)/more + adv + than + S (+V)/obj.
He is taller than she (is)/her.
3 S + V + twice/half + as +adj/adv + as + S (+V)/obj.
This book is twice/half as thick as that one.

Question 17

4. 3 Superlative Degree ขั้นสุด

1. Adj+est/most

Answer 17

S + V+ the + Adj+est/most + of + people/things
+ in + place
+ present perfect/past simple
She is the tallest girl in class.
She is the most beautiful girl [I have ever met/met.]

Question 18

4.3 Superlative Degree ขั้นสุด

any other/other

Answer 18

S + V + Adj+er/more + Adj + than + any other + sing cn.

+ other + pl. cn.

Question 19

5.1 Conjunction
No sooner 
Hardly
Scarcely
Not only

Answer 19

No sooner + V + S + V + than
Hardly …….. when
Scarcely …. when
Not only …. but also / but … as well

No sooner had the ship left the port than she ran into a storm.

Question 20

5.2 Conjunction

that

Answer 20

1. Conjunction
   I think that he will come to the party.
   That he is very selfish does not surprise me.
2. Relative pronoun
   The house that is located at the corner is very beautiful.
   This is the house that Jack built.

Question 21

5.3 Conjunction

Not until

Answer 21

-We got there and then the movie started
=The movie did not start until we got there.
=Not until we got there did the movie start. ขึ้นต้น not until ทำ inversion ประโยคหลัง
=It was not until we got there that the movie started.

Question 22

6 Preposition

Answer 22

เนื่องจาก
(+)Thanks to | the students’ effort, the fair was a success.
(=)Because of | the storm, the ship capsized.
(-)Owing to | the storm, the ship capsized.
(-)On account of | the storm, the ship capsized.
Due to (to be due to)
It was due to the fog that the train was delayed.