Do you wake up every day feeling too tired, or even upset? If so, then a new alarm clock could be just for you．

   The clock, called SteepSmart, measures your sleep cycle, and waits ____（36） you to be in your lightest phase of sleep ____（37） rousing you．Its makers say that should ______（38） you wake up feeling refreshed every morning．As you sleep you pass____（39） a sequence of sleep states---light sleep, deep sleep and REM（rapid eye movement） sleep---that ____（40） approximately every 90 minutes．The point in that cycle at which you wake can ____（41） how you feel later, and may ____（42） have a greater impact than how much or little you have slept．Being roused during a light phase ____（43） you are more likely to wake up energetic．

     SleepSmart ____（44） the distinct pattern of brain waves _____（45） during each phase of sleep, via a headband equipped _____（46） electrodes and a microprocessor．This measures the electrical activity of the wearer’s brain, in much the ____（47） way as some machines used for medical and research ____（48）, and communicates wirelessly with a clock unit near the bed．You ____（49） the clock with the latest time at _____（50） you want to be wakened, and it _____（51） duly wakes you during the last light sleep phase before that．

     The _____（52） was invented by a group of students at Brown University in Rhode Island ____（53） a friend complained of waking up tired and performing poorly on a test．“_____（54） sleep-deprived people ourselves, we started thinking of _____（55） to do about it．” Says Eric Shashoua, a recent college graduate and now chief executive officer of Axon Sleep Research Laboratories, a company created by students to develop their idea．

Do you wake up every day feeling too tired, or even upset? If so, then a new alarm clock could be just for you．
The clock, called SteepSmart, measures your sleep cycle, and waits ____（36） you to be in your lightest phase of sleep ____（37） rousing you．Its makers say that should ______（38） you wake up feeling refreshed every morning．As you sleep you pass____（39） a sequence of sleep states---light sleep, deep sleep and REM（rapid eye movement） sleep---that ____（40） approximately every 90 minutes．The point in that cycle at which you wake can ____（41） how you feel later, and may ____（42） have a greater impact than how much or little you have slept．Being roused during a light phase ____（43） you are more likely to wake up energetic．
SleepSmart ____（44） the distinct pattern of brain waves _____（45） during each phase of sleep, via a headband equipped _____（46） electrodes and a microprocessor．This measures the electrical activity of the wearer’s brain, in much the ____（47） way as some machines used for medical and research ____（48）, and communicates wirelessly with a clock unit near the bed．You ____（49） the clock with the latest time at _____（50） you want to be wakened, and it _____（51） duly wakes you during the last light sleep phase before that．
The _____（52） was invented by a group of students at Brown University in Rhode Island ____（53） a friend complained of waking up tired and performing poorly on a test．“_____（54） sleep-deprived people ourselves, we started thinking of _____（55） to do about it．” Says Eric Shashoua, a recent college graduate and now chief executive officer of Axon Sleep Research Laboratories, a company created by students to develop their idea．

Do you wake up every day feeling too tired, or even upset? If so, then a new alarm clock could be just for you．

The clock, called SteepSmart, measures your sleep cycle, and waits ____（36） you to be in your lightest phase of sleep ____（37） rousing you．Its makers say that should ______（38） you wake up feeling refreshed every morning．As you sleep you pass____（39） a sequence of sleep states---light sleep, deep sleep and REM（rapid eye movement） sleep---that ____（40） approximately every 90 minutes．The point in that cycle at which you wake can ____（41） how you feel later, and may ____（42） have a greater impact than how much or little you have slept．Being roused during a light phase ____（43） you are more likely to wake up energetic．

SleepSmart ____（44） the distinct pattern of brain waves _____（45） during each phase of sleep, via a headband equipped _____（46） electrodes and a microprocessor．This measures the electrical activity of the wearer’s brain, in much the ____（47） way as some machines used for medical and research ____（48）, and communicates wirelessly with a clock unit near the bed．You ____（49） the clock with the latest time at _____（50） you want to be wakened, and it _____（51） duly wakes you during the last light sleep phase before that．

The _____（52） was invented by a group of students at Brown University in Rhode Island ____（53） a friend complained of waking up tired and performing poorly on a test．“_____（54） sleep-deprived people ourselves, we started thinking of _____（55） to do about it．” Says Eric Shashoua, a recent college graduate and now chief executive officer of Axon Sleep Research Laboratories, a company created by students to develop their idea．

Do you wake up every day feeling too tired, or even upset? If so, then a new alarm clock could be just for you.

The clock, called SleepSmart, measures your sleep cycle, and waits  1  you to be in your lightest phase(stage)of sleep  2  rousing（waking）you. Its makers say that should   3  you wake up feeling refreshed every morning.

As you sleep you pass   4  a sequence of sleep states-light sleep, deep sleep and REM(rapid eye movement) sleep-that  5  approximately every 90 minutes. The point in that cycle at which you wake can   6  how you feel later, and may   7  have a greater impact than how much or little you have slept. Being roused during a light phase   8  you are more likely to wake up energetic.

SleepSmart   9  the distinct pattern of brain waves  10  during each phase of sleep, via a headband equipped   11  electrodes（电极）and a microprocessor. This measures the electrical activity of the wearer’s brain, in much the   12  way as some machines used for medical and research   13  , and communicates wirelessly with a clock unit near the bed. You   14  the clock with the latest time at  15  you want to be wakened, and it  16  duly（适时地）wakes you during the last light sleep phase before that. The  17  was invented by a group of students at Brown University in Rhode Island  18  a friend complained of waking up tired and performing poorly on a test, “  19  sleep-deprived（被剥夺）people ourselves, we started thinking of   20  to do about it, ” says Eric Shashoua, a recent college graduate and now chief executive officer of Axon Sleep Research Laboratories, a company created by the students to develop their idea.

1．A．beside                   B．near                    C．for                      D．around

2．A．upon                     B．before                 C．towards              D．till

3．A．ensure                  B．force                   C．require                D．request

4．A．through                 B．into                     C．about                  D．on

5．A．shows                  B．changes               C．begins                 D．repeats

6．A．effect                   B．affect                  C．reflect                 D．perfect

7．A．already                  B．ever                    C．never                  D．even

8．A．means                   B．marks                 C．says                    D．narrates

9．A．removes                B．makes                 C．records               D．recalls

10．A．proceeded           B．produced             C．pronounced D．progressed

11．A．  by                     B．of                       C．with                    D．over

13．A．findings               B．achievements       C．proposals            D．purposes

14．A．prompt                B．program              C．design                 D．plan

15．A．where                 B．this                     C．which                 D．that

16．A．then                    B．also                     C．almost                 D．yet

17．A．claim                  B．conclusion           C．concept               D．explanation

18．A．once                   B．after                    C．since                   D．while

19．A．Besides               B．Despite                C．To                      D．As

20．A．what                B．how                       C．whether          D．when