Тест на тему Защита от опасностей техносферы

Тест по английскому языку: Степени сравнения прилагательных (6 класс)

1. Choose the correct form of the adjective: This book is __________ than that one. a) interesting
   b) more interesting
   c) most interesting
   d) interestinger

2. Which of the following is the superlative form? a) clean
   b) cleaner
   c) cleanest
   d) more clean

3. Fill in the blank with the correct form: My car is __________ than yours. a) fast
   b) faster
   c) fastest
   d) more fast

4. Select the correct comparative form: This mountain is __________ than the one we saw last year. a) tall
   b) taller
   c) tallest
   d) more tall

5. Which sentence uses the correct superlative form? a) This is the most beautiful painting I have ever seen.
   b) This is the more beautiful painting I have ever seen.
   c) This is the beautifulest painting I have ever seen.
   d) This is the most beautifulest painting I have ever seen.

6. Choose the correct comparative form: Her dress is __________ than mine. a) pretty
   b) prettier
   c) prettiest
   d) more pretty

7. Fill in the blank: That problem was __________ than the previous one. a) difficult
   b) more difficult
   c) most difficult
   d) difficultest

8. Which sentence is correct? a) He is the smartest student in the class.
   b) He is the smartness student in the class.
   c) He is the more smart student in the class.
   d) He is the most smart student in the class.

9. Select the correct form: This puzzle is __________ than the last one. a) easy
   b) easier
   c) easiest
   d) more easy

10. Choose the correct superlative: It was the __________ day of the year. a) hot
    b) hotter
    c) hottest
    d) more hot

11. Fill in the blank: This river is __________ than that one. a) deep
    b) deeper
    c) deepest
    d) more deep

12. Which is the correct comparative form? My brother is __________ than me. a) tall
    b) taller
    c) tallest
    d) more tall

13. Select the correct sentence: a) This is the most exciting game.
    b) This is the excitest game.
    c) This is the more exciting game.
    d) This is the excitingest game.

14. Choose the correct form: That house is __________ than ours. a) big
    b) bigger
    c) biggest
    d) more big

15. Which sentence uses the superlative correctly? a) She is the most talented singer.
    b) She is the talentest singer.
    c) She is the more talented singer.
    d) She is the most talentedest singer.

16. Fill in the blank: Today is __________ than yesterday. a) cold
    b) colder
    c) coldest
    d) more cold

17. Choose the correct comparative form: This problem is __________ than the previous one. a) simple
    b) simpler
    c) simplest
    d) more simple

18. Which is the correct superlative form? a) This is the least expensive option.
    b) This is the less expensive option.
    c) This is the most least expensive option.
    d) This is the least expensiver option.

19. Select the correct adjective form: This test was __________ than I expected. a) difficult
    b) more difficult
    c) most difficult
    d) difficultest

20. Choose the correct form: The second book is __________ than the first. a) interesting
    b) more interesting
    c) most interesting
    d) interestinger

Тест по теме "Тригонометрические уравнения"

Класс: 11

Открытые вопросы:

1. Решите уравнение: sin(x) = 1/2

2. Решите уравнение: cos(2x) = 0

3. Найдите все решения уравнения: tan(x) = -1

4. Какие значения может принимать угол x при решении уравнения sin(x) = 0?

5. Решите уравнение: 2sin(2x) - 1 = 0

6. Найдите все решения уравнения: cos(x) + sin(x) = 1

7. Найдите все решения уравнения: cot(x) = 0

8. Решите уравнение: sin^2(x) + cos^2(x) = 1

9. Найдите все значения угла x, удовлетворяющие уравнению: cos(x) = -sqrt(3)/2

10. Решите уравнение: tan(2x) = 1

11. Найдите все решения уравнения: cos(x)sin(x) = 0

12. Решите уравнение: sec(x) = -2

Ответы:

1. x = π/6 + 2πn, 5π/6 + 2πn
2. x = π/4 + πn
3. x = 3π/4 + πn, 7π/4 + πn
4. x = kπ, где k - целое число
5. x = π/6 + πn, 5π/6 + πn
6. x = π/4 + 2πn, 5π/4 + 2πn
7. x = πn
8. x - любой угол
9. x = 5π/6 + 2πn, 7π/6 + 2πn
10. x = π/8 + πn
11. x = π/2, 3π/2, nπ (n - целое число)
12. x = 2π/3 + 2πn, 4π/3 + 2πn

Надеюсь, этот тест поможет вам подготовиться к математическому экзамену по тригонометрическим уравнениям! Удачи!