bài tập ôn thi học sinh giỏi

Sentenc e struc ture and trans form atio n
Subject 1: Comparisons
I. Sentence st ructure:
1. Equal comparison
S + Verb + as + Adjective/ Adverb + as Noun / Pronoun
My book is as interesting as yours.
His car runs as fast as a race car.
S + Verb ( in negative) + as/ so + Adjective/ Adverb +as + S + Verb / Aux
John does not sing so well as his sister does.
2. Comparative with other verbs: `3. Comparative form.
a) Like + N
She is like my mother.
b) ( not )the same as + N
I will not do the same as you.
c) different from + N
We are different from you.
`3. Comparative form.
Eg: John s grade is higher than his sister s.’ ’
He speaks Spanish more fluently than I do.
• Double comparison
- Short adjectives/ adverbs:
- Long adjectives/ adverbs

- Short and long adjectives/ adverbs
Adjective + er
S + Verb Adverb + er + than Noun /
Pronoun
more + Adjective/
Adverb
less + Adjective/ Adverb
S + Verb Adjective + er and Adjective +er

S + Verb Adverb + er and Adverb + er
S + be more and more + Adjective
S + be
more and more + Adverb
The more Adj / Adv + S + Verb The more Adj / Adv + S + Verb
The Adj/ Adv + er + S + Verb The Adj/ Adv + er + S + Verb
4.
Superlative
Eg: John is the tallest boy in the family.
That child behaves the most carelessly of all.
Note:
* The same idea can also be converted in another way.
S + Verb + the same + ( noun) + as + Noun / Pronoun
Eg: my house is the same height as his.
* The opposite of the same as is deferent from.
My nationality is deferent from hers.
* Special patterns with the comparative
• Twice as.............. as , three times as ............ as , etc.
II Senten ce Transformation:
Adjective / Adverb+ est in + singular count noun
S + Verb the most + Adjective/ Adverb of + plural count noun
least + Adjective/ Adverb
Exercise1: Write the following sentences but keep their meanings
1. Her watch is as expensive as mine.
My watch ...............................................
2. He plays the guitar as well as Henry.
Henry plays ............................................
3. Martha is more talented than Bill.
Bill is ................................................
4.Nobody in our class is more intelligent than Jane is.

Jane is ................................................
5.No animal is as big as a whale is .
A whale is .............................................
6. Laura reads more quickly than her brother does.
Her brother .............................................
7. Jack is the tallest student in this class.
No ......................................................
8. His assignment is different from mine.
My assignment …….........................................
9. He knows a lot more about it than I do.
I don’t
know……………………………………………………………………………………………………………….
10. Jane is a better swimmer than Mary.
Jane ...................................................
11.She is a far more careful driver than I am.
She drives .............................................
12.She is a slower and more careful driver than I am.
She drives ..............................................
13.Joe dances more gracefully than his partner.
Joe’s partner ...........................................
14.When he is old , he doesn’t like to travel.
The older ...............................................
15.Is this the cheapest pet food you have got?
Have you ..............................................?
Exercise2 : Write the following sentences . Use the double comparative form of the adjectives or
adverbs in parentheses.
1. The teacher is asking(difficult )questions.
2. My brother is getting( strong).
3. Architects are building (tall) houses.
4. Cars are running (fast).

5. Houses are getting (convenient).
6. The chef is making progress in the kitchen. He prepares(good) dinner.
7. The weather is getting (wet) this week.
8. His wife eats too much . She is getting (fat).
9. The teacher has lots of work. She gets (busy) every day.
10. Her son’s behaviors is getting (bad.
Exercise3 : Write the following sentences . Use the double comparative clause.
1 He work little, he will be paid little.
2 He drank a lot, He was thirsty.
3. He talk much. I became bored.
4. I waited long. I get angry.
5. You are old, You understand more.
6. She grove fast, I became nervous.
7. We ran fast to reach the house. The sky grew dark.
8. The air is polluted. Diseases are great.
9. I go far. I fell homeless.
10.I know him. I hate him.
11.The weather is warm. I became better.
12.He get old. He became quiet.
13.He thought much about his family. He became homesick.
14.He works a lot. He earns much.
15.She grows up. She is beautiful.
Exercise4 : Write the following sentences . Use the words given.
1.My room and my sister’s are not the same.(different)
1. These roads were small and dark two years ago but they are cleaner and wider now.
(as….as).
2. Tan’s salary is as high as Minh’s.( the same……as)
3. Her new school has a lot of students. Her old school doesn’t have many students.
( different)
4. Minh studies hard, and Nam studies hard, too.(as…as)

5. My sister is ten years old. Her sister is ten years old, too.(The same….as)
6. Unit 2 is difficult. Unit 3 is more difficult.(not as….as).
7. My computer is very modern. Your computer is not modern.(not as….as)
8. My sister sing very well.(like)
9. Her mother is tall. She is short.( different)
10.The magazine is large. The newspaper is not large.(not as…………….as)