Quan sát các hình trang 30, 31 SGK

   a) Tìm các hình thể hiện những việc không nên làm để phòng các bệnh lây qua đường tiêu hóa và hoàn thành bảng sau:

   b) Tìm các hình thể hiện những việc nên làm để phòng các bệnh lây qua đường tiêu hóa và hoàn thành bảng sau:

Choose the letter A, B, C or D to complete the passage below

In 2006, the house of a __________ (6) family in Dong Van District, Ha Giang Province was chosen for the background of __________ (7) film "The story of Pao". From distance, the house looks beautiful __________ (8) a painting. Bushes of wild but beautiful flowers in blossom on the right and an old leaning cherry blossom tree at the gate create a romantic scene for the house. The film is about the life of a H'mong girl named Pao. She __________ (9) by her stepmother because her real mother left her when she was little. One day, her stepmother died in an accident, and she began to look __________ (10) her birth mother.

Question 8:

A. like

B. similar

C. as

D. to

Một vật dao động điều hoà dọc theo phương trình: x   =   5 cos 2 π t 3   -   π 3   ( c m )  . Kể từ thời điểm t = 0, sau thời gian bao lâu thì vật đi được quãng đường 7,5 cm?

A. 1,25 s

B. 1,5 s

C. 0,5 s

D. 0,25 s

Có hai dung dịch mất nhãn gồm: N H 4 2 S ,   N H 4 2 S O 4 . Dùng dung dịch nào sau đây để nhận biết được cả hai dung dịch trên ?

A. dd NaCl

B. dd NaOH

C. dd  B a O H 2

D. dd KOH

Gió và năng lượng nhiệt từ trong lòng đất được xếp vào nguồn tài nguyên nào sau đây?

A. Tài nguyên không tái sinh

B. Tài nguyên năng lượng vĩnh cửu

C. TáI nguyên tái sinh và tái nguyên không tái sinh

D. Tài nguyên tái sinh

Có 3 lọ, mỗi lọ đựng các dung dịch sau: B a C l 2 , B a N O 3 2 , B a H C O 3 2 . Chỉ dùng một thuốc thử nào sau đây có thể nhận biết được các dung dịch trên ?

A. Quì tím

B. Phenolphtalein

C.  A g N O 3

D.  N a 2 C O 3

Một con lắc đơn treo vào trần toa xe, lúc xe đúng yên thì nó dao động nhỏ với chu kỳ T. Cho xe chuyển động thẳng đều trên mặt phẳng nghiêng có góc nghiêng α: nếu xe đi xuống dốc thì nó dao động nhỏ với chu kì T₁ và nếu xe đi lên dốc thì nó dao động nhỏ với chu kỳ T₂. Kết luận đúng?

A.  T 1   =   T 2   >   T

B.  T 1   =   T 2   =   T

C.  T 1   <   T   <   T 2  

D.  T 1   >   T   >   T 2  

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

Franklin D. Roosevelt, the 32nd president of the United States, was from a wealthy, well-known family. As a child, he attended private school, had private tutors, and traveled with his parents to Europe. He attended Harvard University, and afterward studied law. At age 39 Roosevelt suddenly developed polio, a disease that left him without the full use of his legs for the rest of his life. Even through the worst of his illness, however, he continued his life in politics. In 1924 he appeared at the Democratic National Convention to nominate Al Smith for president, and eight years after that he himself was nominated for the same office. Roosevelt was elected to the presidency during the Great Depression of the 1930s, at a time when more than 5,000 banks had failed and thousands of people were out of work. Roosevelt took action. First he declared a bank holiday that closed all the banks so no more could fail; then he reopened the banks little by little with government support. Roosevelt believed in using the full power of government to help what he called the "forgotten people." And it was these workers, the wage earners, who felt the strongest affection toward Roosevelt. There were others, however, who felt that Roosevelt's policies were destroying the American system of government, and they opposed him in the same intense way that others admired him.

In 1940 the Democrats nominated Roosevelt for an unprecedented third term. No president in American history had ever served three terms, but Roosevelt felt an obligation not to quit while the United States' entry into World War II was looming in the future. He accepted the nomination and went on to an easy victory.

What does the passage mainly discuss?

A. political aspects of Roosevelt's life

B. problems during the Great Depression

C. Roosevelt's upbringing

D. criticisms of Roosevelt's actions