Bài 1: Tìm nghiệm của đa thức sau:

a)\(4x^2-7x+3\)

b)\(3x^2-7x+4\)

c)\(5x^2+7x+2\)

d)\(6x^2-5x+1\)

e)\(12x^2-x-6\)

f)\(3x^2-7x+2\)

Bài 1: CMR đa thức f(x)=\(x^2-6x+10\) ko có nghiệm

Ex1: Rewrite the sentences without changing the meaning

1. It is not good to stay up so late to listen to music.

=> You shouldn't

2.How many times a week do you go to your painting club?

=> How often

3.It is essential that you do your homework before going to school.

=>You must

4. Nobody is older than my grandmorther in my family

=> My grandmorther is

5. Chau is the best at English in her class.

=> Nobody in Chau's class

I.Choose A,B or C to fill in the blank.

Thinking about how we might be (1)in 10,20 or even 500 years is enough to mahe the mind melt. Will we still even be using planes (perhaps we(2) flying our cars from Seattle to Paris)? What if in 100 years we could (3) straight to our next holiday destination?

While we (4) , engineers and designers all over the world are testing out what could become the (5) of the future. Witness the just-launched prototype of the "Superbus", described by CNN as the love child of a DeLorean and a sretch limo. We get die feeling these vehicles are often designed to be fast, fuel-efficient and well out-of-this-world.

Granted, some of them may never(6) to our roads, skies or" teleportation passageways", but it's fun envisioning what the (7) may hold

1.A.travel B. travelled C.travelling

2. A. are B.want C. will be

3. A. teleport B. hire C.play

4.A. fantasy B. fantasize C. fantastic

5. A. transport B. mean C. vehicles

6.A. find it B. make it C. do it

7.A. future B. people C. human

ex1 Read the passage and choose the best word(A,B or C) to put in each space.

Hoi An is one of the (1) towns in Viet Nam. It(2) on the lower section of the Thu Bon river. It is a very beatiful town with a lot of colorful(3) which are hung(4) the town. Hoi An is famous for one-(5) tailoring. Customers order clothes (6) the morning and get them in the (7).The price is not really(8) . If you want to find the place of the (9)time, Hoi An is a (10) choice.

1.A.newer B.newest C.oldest

2.A. are B. is C.are being

3.A.lanterns B.stars C.ballons

4.A.on B.around C.up

5.A.month B.week C.day

6.A. at B.in C.on

7.A.night B.afternoon C.evening

8.A.expensive B.cheap C.more expensive

9.A.modern B.old C.new

10.A.best B.worst C.good

Thinking about how we might be (1)in 10,20 or even 500 years is enough to mahe the mind melt. Will we still even be using planes (perhaps we(2) flying our cars from Seattle to Paris)? What if in 100 years we could (3) straight to our next holiday destination?

While we (4) , engineers and designers all over the world are testing out what could become the (5) of the future. Witness the just-launched prototype of the "Superbus", described by CNN as the love child of a DeLorean and a sretch limo. We get die feeling these vehicles are often designed to be fast, fuel-efficient and well out-of-this-world.

Granted, some of them may never(6) to our roads, skies or" teleportation passageways", but it's fun envisioning what the (7) may hold

1.A.travel B. travelled C.travelling

2. A. are B.want C. will be

3. A. teleport B. hire C.play

4.A. fantasy B. fantasize C. fantastic

5. A. transport B. mean C. vehicles

6.A. find it B. make it C. do it

7.A. future B. people C. human