bài này là bài nghe mà bạn.

Bài 1:

1. D

2. A

3. A

4. B

5. A

I

5. A

I. Choose the words whose underlined part is pronounced differently from that of the others in each group.

1. A. special                                  B. celebrate                                   C. excited                                       D. center

=> Đáp án A. special

2. A. Thanksgiving                    B. thinking                                    C. there                                           D. thin

=> C. there

3. A. positive                                B. negative                                    C. tug                                                D. future

=> D. future

4. A. puppet                                  B. funny                                          C. schedule                                    D. sunny

=> C. schedule

5. A. milk-shake                         B. fashion                                      B. talent                                          C. candy

=> C. candy

6. A. town                                      B. flowers                                      C. show                                           D. cow

=> C. show

7. A. celebrates                           B. foods                                           C. fireworks                                  D. points

=> B. foods

8. A. festivals                               B. weekends                                 C. Saturdays                                 D. gifts

=> D. gifts

9. A. activities                             B. timetables                               C. performances                         D. roles

=> C. performances

10. A. decorated                        B. watched                                    C. worked                                      D. danced

=> A. decorated

II. Choose the word whose main stressed syllable is placed differently from that of the other in each group.

11. A. market                               B. puppet                                       C. parade                                        D. magic

=> C

12. A. excite                                 B. costumes                                  C. lantern                                       D. martial

=> A

13. A. festivals                            B. decorate                                    C. important                                 D. family

=> C

14. A. location                             B. apartment                                C. tradition                                    D. Halloween

=> D

15. A. restaurant                        B. traditional                                C. participate                               D. activity

=> A

Độ dài                                    Diện tích

\(1mm=\dfrac{1}{10}cm\)                        \(1mm^2=\dfrac{1}{100}cm^2\)

\(1mm=\dfrac{1}{100}dm\)                       \(1mm^2=\dfrac{1}{10000}dm^2\)

\(1mm=\dfrac{1}{1000}\)                          \(1mm^2=\dfrac{1}{100000}\)
 

Phân số chỉ số tiền còn lại là:

          \(1-\dfrac{3}{4}=\dfrac{1}{4}\) (số tiền)

Lúc đầu Lan có số tiền là:

           \(20000:\dfrac{1}{4}=80000\)

Bao gạo nặng là:

       \(30:\dfrac{2}{3}=45\left(kg\right)\)

\(\dfrac{1}{2}\)bao nặng là:

        \(45.\dfrac{1}{2}=22,5\) \(\left(kg\right)\)

Từ trái nghĩa với ''hậu phương'' là tiền tuyến

nhanh thế