Tìm ĐKXĐ:

a.\(\sqrt{x-3}+\sqrt{x+5}\)

b.\(\sqrt{x-3}.\sqrt{x+5}\)

c.\(\sqrt{\left(x-3\right)\left(x+5\right)}\)

d.\(\frac{\sqrt{x+5}}{\sqrt{x-3}}\)

e.\(\sqrt{\frac{x+5}{x-3}}\)

1.Tính:

\(\sqrt{12-2\sqrt{35}}\)

Rút gọn :

a.\(\frac{a-3\sqrt{a}}{\sqrt{a}}\)

b.\(\frac{4x-5}{2\sqrt{x}-\sqrt{5}}\)

c.\(\frac{\sqrt{x^2-2x+1}}{x-1}\)

d.\(\frac{3-4x^2}{3+2x\sqrt{3}}\)

Phân tích thành nhân tử:

a.\(12-2\sqrt{11}-a^2\)

b.\(a+5\sqrt{a}-14\) (a>0)

c\(.a-5\sqrt{a}-6\left(a>0\right)\)

d.\(\left(\sqrt{a}\right)^3-8\left(a>0\right)\)

1.Tính:

a.\(\sqrt{11+6\sqrt{2}-\sqrt{19+6\sqrt{2}}}\)

b.\(-\sqrt{2\left(2-\sqrt{3}\right)}+\sqrt{2\left(2+\sqrt{3}\right)}\)

c.\(\frac{\sqrt{7+4\sqrt{3}}+\sqrt{7-4\sqrt{3}}}{2\sqrt{3}}\)

1.Tính :

a.\(\sqrt{11+6\sqrt{2}}+\sqrt{19+6\sqrt{2}}\)

b.\(-\sqrt{2\left(2-\sqrt{3}\right)}+\sqrt{2\left(2+\sqrt{3}\right)}\)

c.\(\frac{\sqrt{7+4\sqrt{3}}+\sqrt{7-4\sqrt{3}}}{2\sqrt{3}}\)

Near Future and future simple (contrast)

1.Next summer,I(travel)..........................................to New York.She lives there and has bought me a plane ticket for my birthday.

2.It's getting cold.I (take)..........................my coat.

3.Are yoi going to the cinema?Wait for me.I(go)........................with you.

4.What........................you (do).........................tomorrow?-I (visit).....................my grandparents in the countryside

5.Bye Bye Joe. I (phone) .......................you as soon as I arrive home.

6.I've already decided.I (buy)...............................a new car.

7.A:Would you like to come to my house for dinner and talk about this?

B:Good idea.I (bring).....................................................some wine.

8.A: What are your plans for next week?-B:I (fly)......................................to New York on business .

Probably on Tuesday but I haven't bought my ticket yet.

9.A:Why are you wearing your best suit?-B:I (have)...........................................lunch withmy biggest customer.

10.A: Do you want to have the chicken or the beef?-B:I think I (have).....................................the beef.

11.A:My head hurts .-B:Sit down and I (get).......................................you an aspirin.

12.A: I've booked the tickets .I am so glad that I (spend)...........................................a holiday in Spain.

B: When...........................you (do).........................there?

13.Look out! He is driving dangerously .He (crash)..........................................................

14.She hopes her baby (be)................................a girl.

15.Perhaps in a few years everybody(have)........................................................an easy life.

16.We have saved enough money.We (buy)...........................................................a new car.

17.Do you think it (rain).................................................tonight?

18.He is learning English very hard because he (study)...................................................abroad next year.

Decide what í happening in each sentence,e.g.an unplanned decision,first conditional,plans,offers,promises,predictions/opinions.

Then complete the gaps with going to or will + verb. Use contreactions.

1.A:Have you decided what to do on Saturday night?

B:Yes,we've got tickets for the cinema and after that we.....................................dinner at that new Italian restaurant (have).

2.A:I've had a terrible day today.

B:Sit down,I..........................................you a cup of tea (make).

2.A: Who do you think ....................................the World Cup? (win)

B:I don't know,but England.............................................it (not win).

A:I think Germany...................................................................it again(win)

3.A:Please remember to turn off the lights before you leave.

B: Don't worry,I promise I.....................................(not forget).

4.A:Which bus.......................................you.............................................? (catch)

B:The 5.30 bus.If arrives on time,I....................................................home at 7.00(be)

6.A:Would you like a cp of tea or coffee?

B:I.............................................a cup of coffee please (have).

7.A:What are Kate's plans for the summer?

B:Well,first she....................................................with a friend in Thailand (stay),and then she ..............................to Vietnam (go).

8.A:What...........................you..............................if he doesn't phone?(do)

B:I...................................him.I haven't got his phone number .(email).

9.A:How much is this shirt ?

B:$14.99

A:Fine.I..........................it (take).

10.A:What ...................................tonight ? (do)

B: Well,If I finish work early I.......................................probably ..........................to the pub (go).

Use the verbs in brackets in the Future Simple or Near Future.

1.A:Did you remember to book the seats?

B:Oh not,I forgot.I (telephone)...............them now\

2. I have bought a bicycle.I (ride).......................it to work

3. A : why are you taking that big basket ?-B : I .......... ( buy ) a lot of vegetable

4. I have not bought any cigarettes because I ................ ( give up ) smoking .

5. A : ............. ( you / open ) the window for me , please ?-B : yes , certainly

6. A : That trees make the house dark-B : I .......... ( cut ) it down

7 .................. ( you / paint ) the whole room by yourself ? It will take you a long time

8. I hope you .............. ( do ) well in the race tomorrow

9. .............. ( you / come ) and see me after the class ? I want to discuss with you some problem

10. Look at that drunk man! He(fall)...........................down

11.I think Jack (be).........................appointed as the deputy head of the department soont

12.We are not sure yet,but we (not go)....................to Sam Son again.