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Tìm x biết:

a, (x-1)³ =27

b, x² + x= 0

c, (2x + 1)² =25

d, (2x - 1)³ =36

e, 5^x+2 = 625

f, (x - 1)^x+2 = (x -1)^x+4

g, (2x - 1)³ = -8

Viết bài văn nghị luận trình bày sự tán thành về ý kiến ''Sách vừa là 1 người bạn, 1 người thầy của con người''

Câu 1: Trình bày 5 hàm thông dụng trong phần mềm bảng tính.

Câu 2: Nêu ưu điểm của việc sử dụng cấu trúc phân cấp trong bài trình chiếu.

Câu 3: Nêu các bước thực hiện tạo hiệu ứng cho đối tượng.

Bài 2: Hoàn thành các câu dưới đấy sử dung động từ khuyết thiếu “ will” và động từ trong ngoặc.

1. In the future, buildings (be) _________________taller and moderner.

2. I think that people (drive)______________to work by flying vehicles and in the future.

3. People (not use)___________ox or horse carts any more.

4. I think public transportation (develop)____________and people (use)______________less private vehicles.

5.___________ (they/accept) my invitations?

6.____________ (many workers/ choose) to work from home?

7. Jim thinks that life (be) ________________easier in the future thanks to the help of robots.

8. Astronomers believe that they (find) __________________a living planet like the earth.

9. When _________________ (living in Mars/ be) possible?

10. Which means of transportation (take)_________the major role in the next 20 years?

11. It is predicted that there ( be)___________hail and snow tomorrow.

12. I’m afraid that my parents ( not allow)________me to go out too late.

13. Who (make)___________the last decision?

14._______________(robots /replace) all human workers in factories? No, they _____________

15. Jane expects that her mother (come)_______________home early today.

16. Future vehicles (run)______________on biofuel and other green energy.

17. My grandfather doesn’t believe that cars (fly)_________________like planes in the future.

18. There (not be)____________________gridlock in the future because people ( travel)____________by flying cars.

19. I think that countryside (disappear)______________in the future due to urbanization.

20. Solar-powered equipment ( be)___________________very popular in the future.

Bài 4. Chia động từ ở các câu sau (ở thì tương lai đơn hoặc be going to V)

BÀI 1: Dựa vào từ cho sẵn, viết câu ở thể khẳng định(+), thể phủ định, thể nghi vấn(+) với động từ khuyết thuyết “will”

1. Jim/arrive/here/tomorrow.

(+)____________________________________________________________

(-)______________________________________________________________

(?)___________________________________________________________________

2. There/ be/ many driverless cars/on the street/in the future.

(+)____________________________________________________________

(-)______________________________________________________________

(?)___________________________________________________________________

3. Maria/ travel/to Berlin/ on the metro.

(+)____________________________________________________________

(-)______________________________________________________________

(?)___________________________________________________________________

4. High-speed trains/ be/ very/ popular/in the next years.

(+)____________________________________________________________

(-)______________________________________________________________

(?)___________________________________________________________________

5. There/ be/ gridlock/between 5:30 and 7:00

(+)____________________________________________________________

(-)______________________________________________________________

(?)___________________________________________________________________

6. They/build/an overpass/here/next year.

(+)____________________________________________________________

(-)______________________________________________________________

(?)___________________________________________________________________

7. Peter/ learn/to ride/a monowheel.

(+)____________________________________________________________

(-)______________________________________________________________

(?)___________________________________________________________________

8. People/ travel/flying cars/ in the future.

(+)____________________________________________________________

(-)______________________________________________________________

(?)___________________________________________________________________

Bài 3. Điền vào chỗ trống sử dụng những từ trong bảng sau để hoàn thành một bài Speaking Part 2 hoàn chỉnh

Question: How would you think the modern technology will change the workplace in the next 100 years?

Thanks to modern technology, there have been enormous changes in the workplace over the past 100 years.

So now let us consider the changes that (1)……………………… in the next 100 years. Unfortunately, I believe that not all changes (2)…………for the better. For example,  more people (3)…………………… from home and so they (4)………………… more isolated from their colleagues. On the other hand they (5)………………… greater freedom to choose their working hours.

A further possible change is that handwriting (6)…………………… obsolete. We are already so used to using a keyboard that today’s children are losing the ability to spell without the aid of a word processor.

Without a doubt, even greater changes (7)…………………… in technology used in the workplace. Computers (8)……………………… to grow even more powerful and this (9) …………………………… in an even faster pace of life than we have now. Let us hope that our employers (10)……………………… way to reduce the stress on worker’s this fast pace can bring.

I also think these improvements in technology (11)……………………… even more globalization than now and companies (12)………………………… very strong international links.

Bài 1. Điền dạng đúng của từ trong ngoặc

Bài 2. Dùng từ gợi ý viết thành câu hoàn chỉnh

      ________________________________________________________________

              _______________________________________________________________

_____________________________________________________________

              _______________________________________________________________

_______________________________________________________________

Cho 2 đa thức: A(x)= 5x⁴ - 5 + 6x³ + x⁴ -5x - 12 và B(x)= 2x³ + 6x⁴ 4x³ - 5x- 15 - 2x²

a, Thu gọn và sắp xếp các đa thức A(x) ; B(x) theo lũy thừa giảm của biến.

b, Tìm nghiệm của đa thức C(x) = A(x) - B(x)