Bài 5: Giải phương trình
a) x ( x+1) ( x – 1) ( x+2) =24
b) ( x – 4) ( x – 5) ( x – 6) ( x – 7) = 1680
c) 2x ( 8x – 1) 2 ( 4x – 1) = 9
d) ( 2x + 1)( x + 1) 2 ( 2x + 3) = 18
e) (x 2 – 6x +9 ) 2 – 15( x 2 – 6x +10) = 1
f) ( x 2 + 1) 2 + 3x ( x 2 + 1) + 2x 2 = 0
g) ( x 2 – 9) 2 = 12x + 1
Bài 6: Giải phương trình
a) ( x + 3) 4 + ( x+ 5 ) 4 = 16
b) ( x – 2) 4 + ( x – 3) 4 = 1
(Hoàn thành các câu với hình thức đúng của have to )
1.My mother says that I __________ be home by 9 p.m.
2.We __________ go now because our dad is waiting for us.
3.She __________ wear that costume because it’s the family tradition.
4.In the past, men __________ wear Ao Dai, but today they __________ wear it.
5.Before leaving the dinner table, __________ your son __________ ask for permission?
6. We__________ go to school today because it was raining heavily.
Question II. Choose the best answer A, B, C , or D to complete the sentences.
1. In 2010, Ha Noi____________ its 1000th anniversary.
A. celebrated B. commemorated C. worshipped D. remembered
2.The ____________ of quan ho singing has been recognized as a world heritage.
A. preservation B. procession C. performance D. song
3. Tet is an occasion for family____________ in Viet Nam.
A. visitings B. Meeting C. reunions D. seeings
4. ____________ spring comes, many Vietnamese villages prepare for a new festival season.
A. While B. When C. Nevertheless D. However
5. You should ____________ information about a custom or tradition.
A. finds B. found C. finding D. find
6. A custom is something that has become an ____________ way of doing things.
|
A. to be accept |
B. to accept |
C. accepting |
D. accepted |
7. In the UK, there are lots of customs for table manners. For example, We ____________ use
a knife and fork at dinner.
A. have to B. are having C. has to D. having to
8.In Viet Nam, you____________ use only the first name to address people older than you.
A. should B. must C. shouldn’t D. have to
9. At the Mid-Autumn Festival ,kids can sing, dance, and enjoy moon-cakes ; ____________, every child likes it very much.
A. However B. Moreover C. Because D. Therefore
10.When the ____________ arrives at the Cam Tower, the dancers perform a welcome dance in front of the tower.
A. Procession B. crowd C. parade D. dancer.
I.Complete the sentences with should or shouldn’t.
(Hoàn thành các câu với should hoặc shouldn’t)
1.You __________ respect old people.
2.According to tradition, you __________ sweep the floor on the first day of Tet.
3.Children __________ take things from adults with both hands.
4.You __________ wear shorts when going to the pagoda.
5.You__________ bring a gift when you visit someone’s house.
6.Your sister is chewing and taking at the same time. You__________ do that .It’s not very polite.
7.Your brother is noisy at the pagoda. You__________ be quiet in here.
8.Your foreign friend has been invited to dinner in a Vietnamese house. After taking food from the plate, you__________ put it into your bowl before eating.
9.You don’t know what to do when going into a Japanese house. You __________ take off your shoes at the entrance.
10. You have been invited to dinner with a British family. You__________ arrive on time.
Question VII. Identify a mistake in each sentence and correct it.
1.When you visit a temple in Thailand, you has to follow some important customs.
……………………………………………………………………………………..…
2.People should wear short shorts and tank tops. This is disrespectful
……………………………………………………………………………………..…
3. People can wear sandals, but these have to has a strap around the back.
……………………………………………………………………………………..…
4.People should to lower their voice inside the temple.
……………………………………………………………………………………..…
5.Women have avoid touching monks.
……………………………………………………………………………………..…
Bài 5: Giải phương trình
a) x ( x+1) ( x – 1) ( x+2) =24
b) ( x – 4) ( x – 5) ( x – 6) ( x – 7) = 1680
c) 2x ( 8x – 1) 2 ( 4x – 1) = 9
d) ( 2x + 1)( x + 1) 2 ( 2x + 3) = 18
e) (x 2 – 6x +9 ) 2 – 15( x 2 – 6x +10) = 1
f) ( x 2 + 1) 2 + 3x ( x 2 + 1) + 2x 2 = 0
g) ( x 2 – 9) 2 = 12x + 1
Bài 6: Giải phương trình
a) ( x + 3) 4 + ( x+ 5 ) 4 = 16
b) ( x – 2) 4 + ( x – 3) 4 = 1
Bài 3: Giải phương trình:
a) x3+ 2x2 + x +2 = 0
b) x3 – x2 – 21x + 45 = 0
c) x3 + 3x2+4x + 2 = 0
d) x4+ x2 +6x – 8 = 0
e) (x2 + 1)2 = 4 ( 2x – 1 )
Bài 4: Giải phương trình:
a) ( x2-5x)2 + 10( x2 – 5x) + 24 = 0
b) ( x2 + 5x)2 - 2( x2 + 5x) = 24
c) ( x2 + x – 2)(x2 + x – 3) = 12
d) x ( x+1) (x2 + x + 1) = 42
Bài 1: Giải phương trình:
a) ( x+1)2 (x+2) + ( x – 1)2 ( x- 2) = 12
b) x4 + 3x3 + 4x2 + 3x + 1 = 0
c) x5 – x4 + 3x3 + 3x2 –x + 1 = 0
Bài 2: Chứng minh rằng các phương trình sau vô nghiệm
a) x4 – x3 + 2x2 – x + 1 = 0
b) x4 + x3 + x2 + x + 1 = 0
c) x4 – 2x3 +4x2 – 3x +2 = 0
d) x6+ x5+ x4 + x3 + x2 + x + 1 = 0
1. Nam, do you fancy (play) ___________ badminton with me sometime next week?
2. Tuan loves (listen) ____________ to music every day.
3. My brother likes (walk) __________, but he detests (wash) _________ the dishes.
4. My father enjoyed (watch) ____________ TV very much.
5. She doesn’t like (communicate) __________ through emails. In fact, she hates (do) _________ it. She prefers (meet) ________ people in person.
6. They adore (make) __________ and (eat) __________ good food.
7. Trung usually (go) ____________ to the library three times a week.
8. I (read) ___________ an interesting book at the moment.
9. How long you (live) ___________ here? – Since 1997.
10. Where you (spend) ___________ your summer holiday last year, Tam?
11. We (learn) ___________ for 3 years.
12. Tuan loves ____________ to music every day. (listen)
13. ____________ you ever ___________ a buffalo? (ride)
14. The children used to ___________ a long way to school. (go)
15. They hate ___________ their son texting his friends all day. (see)
16. I’ll be on holiday this time next week. I (lie) ___________ on a beautiful beach.
17. In the future, you ( be)__________ very rich and famous.