(50) (A) Also (B) However (C) Indeed (D) Definitely
SC (2)0 (3) (4) (5)
17.
In general, most adults require seven to nine hours of sleep. Experts have found a human
sleep cycle
|_is made up of two kinds of sleep: REM (rapid eye movement) and NREM
(non-rapid eye movement).
在统
NREM occurs for about 75-80% of steeping time. The longer periods of NREM enable the body to
repair cells and tissues. Most of the chemicals that are necessary for growth and health are released
TEB
at these times.
However, NREM is interrupted through the night by shorter periods of REM sleep. This
happens when people dream. REM sleep is believed to be important _2_ the brain to remember
things and to process skills learned while
The REM sleep period is also thought to be the
time people recover from the stress of the previous day. REM helps people __4_mentally balanced.
.. a good night's sleep is surely important for both physical and mental health. If you don't
enough sleep, you may suffer from health problems.
(1)(A) what (B) how (C) which (D) who
A(D)(A) for (B) to (C) on (D) in
BIO AB)
(A) dreaming (B) asleep (C) sleep (D) awake
(4) have (B) are (C) stay (D) make
16tLU
3
先回
get
Bouleg C)
所以如果看到while 後面接sleep 就都要選ing嗎