1. Hiệu của hai số là $30$. Số thứ nhất gấp $3$ lần số thứ hai. Tìm hai số đó.

2. Số thứ hai hơn số thứ nhất là $60$. Nếu số thứ nhất gấp lên $5$ lần thì được số thứ hai. Tìm hai số đó.

3. Một cửa hàng có số gạo nếp ít hơn số gạo tẻ là $540kg$. Tính số gạo mỗi loại, biết rằng số gaọ nếp bằng $\frac{1}{4}$ số gạo tẻ.
 

4. Nêu bài toán rồi giải bài toán theo sơ đồ sau:

MN người làm giúp mình nha 8:00 mình thu bài ( chú ý ko chép mạng )
 

I.Choose the word which has a different stress pattern from the others. (0,5pt)

    1. A. ecology              B. environment              C. autography                D. residential

    2. A. Maltese             B. festive                        C. degree                        D. unique

II. Choose A, B, C, D for each gap in the following sentences. (2pts)

3                   Air___________, together with littering, is causing many problems in our cities today.

A. pollute                       B. pollution                   C. polluting                    D. polluted

4. The road in front of my office is always __________ when it rains heavily.

A. to flood                     B. flooding                    C. flood                          D. flooded

5. Singapore is famous for its __________ and green trees.

A. cleanliness                 B. cleanly                       C. cleaning                    D. clean

6. In some English speaking countries, turkey and pudding are ___________ food at Christmas.

A. national                     B. historical                             C. traditional                 D. possible

7. The USA has a population of 304 million, and it’s the third_________ country in the world.

A. smallest                     B. largest                       C. narrowest                            D. highest             

8. The roof of the building _____________ in a storm a few days ago.

A. damaged                             B. was damaged                      C. has damaged             D. has been damaged

9. A severe tropical___________ is called a typhoon.

A. drought                     B. rain                            C. flood                          D. storm              

10. As soon as the floodwater ___________ down, people ____________ their houses.

A. went - cleaned           B. had gone – cleaned    C. went - had cleaned     D. had gone – had cleaned

B. READING: (3pts)

I. Choose the correct answer for each gap to complete the following passage. (2,5pts)

        Rivers are ____(11) ____ of the world’s most important natural resources. Many cities are on large rivers, and____ (12)____ every country has at least one river that ___(13)___ an important part in the lives of its people.

        Besides transportation, rivers ___(14)___ food, water for crops, water to drink, and opportunities for recreation for people who live along their ____(15)____. And in order to get water for crops, engineers sometimes build a dam (đập, đê) across a river and let the water become a lake ____(16)____ the dam. Then people can use their water not only to ___(17)___ fields but also to make electricity for homes and industries.

  ____(18)___, the water often becomes polluted when cities on river banks grow in size and the number of industries increases. We are learning that it is necessary to keep  rivers clean if we want to enjoy the benefits of the natural resources.

11A. one                    B. ones                 C. among                       D. those

12A. most                            B. mostly             C. almost                      D. about    

13A. takes                  B. makes              C. occupies                              D. plays

14  A. supply             B. provide            C. distribute                            D. bring

15A. banks                B. shores              C. sides                          D. beaches

16A. behind               B. on                    C. below                        D. under

17A. take                             B. irrigate             C. drain                          D. give

18A. Moreover          B. Therefore                   C. Thus                          D. However