hung le's Profile

Bài 1: Phân tích các đa thức sau thành nhân tử:
a) 27x – 3x 3 b) 4x(x + 5) – x – 5 c) 8x 3 – 27
d) x 2 – 4 – 3(x – 2) e) 4x 2 – 25(x – 2) 2 f) x 2 – 9y 2 + 4x + 4
g) x 2 (y – 5) + 5 – y h) x 2 - 11x + 30 i) x 2 - 2x - 24
Bài 2: Tìm x, biết:
a) 5x 2 + 10x = 0 b) 2x(x – 3) + 2x – 6 = 0
c) (2x – 1) 2 – 9x 2 = 0 d) x – 3 – (9 – x 2 ) = 0
e) 25x 2 – 10x + 1 = 0 f) (x – 2) 2 = x 2 – 4
g) 5x 2 – 3x – 2 = 0 h) (x – 3) 2 – 3x + 9 = 0
Bài 3: Thực hiện phép chia:
a) (x 3 – x 2 – 4x + 4) : (x 2 – 4) b) (5x 4 – 3x 5 – 1) : (– x 2 + x + 1)
Bài 4: Tìm x, biết:
a) x 3 – 25x = 0 b) 4x – 6x 2 = 0
c) 4x 2 – 8x + 4 = 0 d) x 2 = (2x – 1) 2
e) 2x – 10 – (x – 5) 2 = 0 f) (x – 3)(x + 2) – 2x – 4 = 0
g) x 2 – 4 = 2(x + 2) h) (x – 3)(x – 1) – x(x + 2) = 0
Bài 5: Cho hình bình hành ABCD. Kẻ AM  BD, CN  BD (M, N  BD).
a) Chứng minh DM = BN
b) Tứ giác ANCM là hình gì, vì sao?
c) Gọi O là giao điểm của AC và BD, chứng minh O là trung điểm của MN
Bài 6: Chọn câu trả lời đúng.
1) Hình thang vuông là tứ giác:
A. Có một góc vuông B. Có hai góc vuông
C. Có hai góc kề một cạnh bằng 90 0
2) Hình thang cân là hình thang:
A. Có hai đường chéo cắt nhau tại TĐ của mỗi đường

B. Có hai đường chéo bằng nhau C. Có hai đường chéo vuông góc với nhau
3) Hình bình hành là một tứ giác:
A. Có hai cạnh đối song song
B. Có hai cạnh đối bằng nhau C. Có hai cạnh đối song song và bằng nhau
4) Hình bình hành là một tứ giác:
A. Có hai đường chéo bằng nhau
B. Có hai đường chéo vuông góc
C. Có hai đường chéo cắt nhau tại trung điểm của mỗi đường

I. Mark the letter A, B, C or D to show the word having different stress. 

1.A. section 

B. biography 

C. thirteen 

D. possession 

2.A. emission 

B. convenient  

C. activity 

D. innovation 

3.A. .pollute 

B. typhoon  

C. logical 

D. career 

4.A. question 

B. guarantee 

C. education 

D. independence  

5.A. automatic  

B. independence  

C. occupation            

D. urbanization 

6.A. inspire  

B.  pollute                        

C. design  

D. section 

7.A. competition 

B. preservation 

C. reputation 

D. question 

8.A. adore 

B. detest 

C. nomad 

D. collect 

9.A. relax 

B. paddy 

C. pasture 

D. social 

10. A. significant   

B. minority 

C. complicated 

D. majority 

 

 

  II. Choose the word that has underlined part pronounced differently from the rest. 

1. a. vast b. cart c. craft d.paddy 

2. a. terraced b. satisfied c. hooked d. relaxed 

3. a. ethnic b. unique c. basic d. diverse 

4. a. worked b. watched c. relaxed d. crowded 

5. a. visited b. recommended c. wanted d. hoped 

6.  a. ethnic b. gather c. though d. clothing 

7.   a. laughed                  b. washed                      c. wached            d. listened 

8. a. develops                   b.   takes                       c. laughs            d. volumes 

9. a. phones                   b.  streets                        c. looks              d. cakes 

10. a. appeared 

          b. frightened 

            c. arrived 

        d. reduced 

11. a. ethnic 

          b. breathing 

            c. either 

        d. paths 

12. a. volunteer b. committee c. guarantee d. degree 

 13. a. populated b. loaded c. harvested d. lived 

  14. a. architect b. church c. childhood d. change 

15.  a. crafts                            b. streets.                   c. stamps.                       d. plays  

 

III. Circle the option that best completes the sentence. .  

1. Jack is sociable. He can (do/ take/ get/ make) friends easily.  

2. You can relax in the countryside. It’s so (peace/ peaceful/ peacefully/ more peaceful).  

3. He provided us (for/ about/ by/ with) a lot of useful information.  

4. Country folk are (more friendly/ less friendly/ most friendly/ as friendly) than city folk. I know every boy in my village.  

5. Life in a remote area is (harder than that/ hard than/ less hard as/ so hard as that) in a modern town.  

6. If you want to stay slim, you have to eat (more healthily/ healthy/ healthier/ as healthily).  

7. Of the twin sisters, Kim is (the most beautiful/ most beautifully/ the more beautiful/ most beautiful).  

8. It usually snows (heavier / more heavily / heavilier / less heavily) in the mountains than in the lowlands.  

9. I think life in the city is faster than (that / it / this / it is) in the countryside.  

 IV. Fill in each blank with the appropriate form of the word in brackets.  

  1. There is a (collect) ………………………………… of books on the shelf.  

2. It is very (convenience) …………………………………for people in remote areas to get to hospitals.  

3. Iceland is considered the most (peace) …………………………………country in the world.  

4. My parents want to live in the countryside when they get older because of its ………… life. (peace )  

5. Sometimes it is  (convenient)… ………… for people to travel in rural areas because there are not many different means of transport. 

 

  

 

V Put the verbs in the brackets into infinitive (V/to V) or gerund (V-ing). 

1. John dislikes (work)   in front of a computer all day. 

2. I’d like (visit)   the Viet Nam Museum of Ethnology this weekend 

3. I’d rather (make)  crafts than listen to music. 

4. Minh loves (help)   her parents with DIY projects. 

5. Quang hates (take)   the dog for a walk. 

6. We all adored (do)   aerobics when we were young. 

7. You should (play)   sports to keep fit. 

8. They don’t need (watch)   that programme if they don’t like it. 

9. Do you fancy (socialize)   with friends? 

10. My brother prefers (surf)   the Internet. 

 

VI.  Rewrite the sentences in such a way that they mean the same as the original sentences.   

1. Her old house is bigger than her new one.  

• Her new house is not ………………………………………………… 

2. Peter is the tallest boy in my class.  

• No one ………………………………………………………………… 

3. Phong was a quicker runner than his friends. (quickly)  

• Phong ran …………………………………………………………… 

4. Nam prefers staying at home to going out. (than)   

• Nam likes …………………………………………………………… 

5. This is the first time I have read such an interesting story.  

• This is the …….……………………………………………………...  

6. We leave early. We will arrive soon. 

• The …………………………………………………………………… 

I. Choose the word whose underlined part is pronounced differently from the others. 

1. a. ride b. Excited                   c. ridden d. beehive 

2. a. pasture b. vast c. brave d. farm 

3. a. cattle b. circular c. country d. collect 

4. a. generous b. ger c. grassland d. guess 

5. a. worked b. watched c. relaxed d. crowded 

6. a. visited b. recommended c. wanted d. hoped 

7. a. community b. custom c. costume d. museum 

8.  a. ethnic b. gather c. though d. clothing 

II. Complete the passage with the comparative form of the adjectives in brackets. 

Is life better now than it was in the past? Of course in many ways life is (1)_________ (easy) now. We live in the world which is (2)_________ (clean) and safer. It is generally (3)_________ (healthy) as well, and because of improvements in medical care, both men and women can expect to live (4)________ (long) lives. Our day-to-day existence is (5)________ (comfortable), but are we (6)_________ (happy)? 

The rhythm of life is faster, and (7)_________ (stressful). People are always in a hurry. In the end it is hard to say things were (8)_________ (good) or (9)_________ (bad) before. As the saying goes ‘the grass is always (10)_________ (green) on theother side of the fence’. 

III. Write the correct form or tense of the verbs in brackets. 

1. We ___________(play) football this afternoon. Do you want to play too? 

2. Could you meet me at the airport tomorrow? My flight___________(arrive) at six. 

3. Last summer, my friends and I ___________(spend) our holiday on a farm. 

4. Nick ___________(not ride) a buffalo drawn cart before. 

5. The cattle ___________(graze) on the green pastures right now. 

6. Millions of Mongolians ___________(be) semi-nomadic herders for thousands of years. 

7. My family ___________(live) in a small town for ten years before moving to Boston. 

8. Country life ___________(not excite) me at all. It’s so boring. 

9. Nick would like ___________(visit) the countryside at the harvest time. 

10. I don’t mind ___________(drive) for 1.5 hours on the weekend to get out to the countryside. 

IV. Write the second sentence so that it has a similar meaning to the first one. Use the words in brackets. 

1. This supermarket isn’t as expensive as the one across the street. (less) 

 

2. The English teacher started teaching at our school three years ago. (for) 

 

3. My doctor advised me not to eat in front of the television. (said) 

 

4. You won’t pass the exam unless you study harder. (if) 

5. Hanoi urban districts are noisier than its suburban areas. (as) 

 

6. Why don’t we go to uncle Huan’s farm this weekend? (going) 

 

7. Sarah found it difficult to learn to read in Japanese. (difficulty) 

 

8. The book was so complicated that we couldn’t understand it. (too) 

 

9. Sandy now doesn’t study so diligently as she did in the past. (more) 

 

10. The Chinese printed the first books more than a thousand years ago. (by)