Tasks for the summative assessment for the term 4 Reading Task 1. Read the text and mark the sentences T (True) or F (Fals) given below the text At the beach Yesterday in the morning, the children went to the beach with their mother. The beach was quiet. There were no реople on the beach. The children only heard the sounds of birds, palm trees and the ocean. They saw many small shells on the beach. After the walk, the children were hungry. Their mother gave apples, juice and sandwiches for lunch. After the breakfast, they played and jumped in the waves. 1. In the morning children went to the park. 2. Children heard sounds of birds, palm trеes and ocean. 3. They saw many sea animals on the beach. 4. After the walk children were not hungry. 5. At the beach they played and jumped in the waves.
Writing Task 2. Complete the sentences using the verbs in brackets as in example Example: Paul is waterskiing (waterski) 1. They are (sail). 2. The dolphin is (look) at you. 3. Berik is (play). 4. Marat and Saken are (surf). 5. She is (fish).
получается делаем так:
сначала решаем уравнение как и обычно т.е. теоремой виетта или дискриминантом
х^2-4х+3=0
я решу теоремой виетта:
сумма корней равна 4
произведение 3
значит корни 1 и 3
далее:
есть такая формула разложение на множетели квадратного уравнения выглядит так: a(x-x1)(x-x2), где а-множетель перед квадратом в нашем случае это 1, х1 и х2 - корни.
подставим в неё наши корни, получим (x-1)(x-3)=0
так а теперь решим это неравенство (x-1)(x-3)> 0
методом интегралов ( тут 3 промежутка от минус бесконечности до 1 от 1 до 3 и от 3 до плюс бесконечности):
допустим х =0, подставим (0-1)(0-3)=3 знак + значит в промежутке от минус бесконечности до 1 знак +
от 1 до 3 знак -
от 3 до плюс бесконечности +
ответ: х принадлежит промежутку от минус бесконечности до 1 и от 3 до плюс бесконечности
1 he taught history at school
he didn't teach history at school
did he teach history at school?
2 they left home at 8 o'clock
they did not leave home at 8 o'clock
did they leave home at 8 o'clock?
3 he stood in very good hotels
he didn't stay in very good hotels
did he stay in very good hotels?
4 you drank a lot of tea
you didn't drink a lot of tea
did you drink a lot of tea?
5 l looked tired
l didn't look tired
did l look tired?
6 we stopped in LONDON
WE DIDN'T STOP IN LONDON
DID WE STOP IN Londn?
7 pam BOUGHT A LOT OF CLOTHES
PAM DIDN'T BUY A LOT OF CLOTHES
DID PAM BYU A LOT OF CLOTHES?
8 birds flEW AWAY TO THEIR COUNTRIES
BIRDS DIDN'T FLY AWAY TO THEIR COUNTRIES
DID BIRDS FLY TO THEIR COUNTRIES?