Text-1 Read the text. Then choose the correct answer for questions 1-2

5. A pillow which is neither too soft nor too firm is good for those who
A) don't have a favourite way of sleeping:
B) fall asleep lying on their back.
C) know that this kind is most comfortable.
D) can't fall asleep and toss a lot.
6. What does the word 'flat' in the test mean?
A) Apartment B) Unexciting
C) Thin D) Not interesting
Read the text. Then choose the correct answer to questions 7-8.
WHY DO WE SLEEP? Amazingly, that's a question with no definite answer. We all know that we fall asleep because we are tired and that we feel better after sleeping, but why can't we do without it? Research has shown that animals die if they don't have sleep, almost as quickly as they do if they don't have food. But why do we need it? The time we are asleep is divided into different periods. D-sleep (de-synchronized or dreaming) and S-sleep (synchronized). A typical night's sleep consists of four or five periods of D-sleep that lasts approximately 90 minutes total (little more than 20 per cent of total sleep time). The first D-sleep period occurs about 70 to 120 minutes after falling asleep.
NEW WORDS: Amazingly-hayratlanarli; definite-aniq; Research-izlanish,tadqiqot; almost as quickly as-deyarli tez tez; asleep-uxlagan; divided into-bo’linmoq; period-davr; typical-odatiy; consists of-tashkil topmoq;o’z ichiga olmoq; approximately-taxminan; total-umumiy;jami; occur-sodir bo’lmoq;