单选题A Your heart rate is lowered.B It becomes harder to relax.C You become too tired to sleep.D Sleep rhythms are disrupted.

What effect does excessive positive ions have on some people?

A．They think they are mad.

B．They feel very tired.

C．They become violently sick.

D．They are too tired to do anything.

听材料，回答下列问题： Directions: In this section, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks with the exact words you have just heard.Finally, when the passage is read for the third time, you should check what you have written. Shift work is concentrated in the most dangerous areas of employment. It has various effects on health and daily life. Shift workers, especially those who work nights, can 26 a number of health problems. They include sleep 27 , depression, high blood pressure, heart disease, and 28 Experts now realize that sleep loss are dangerous and that night shift always results in sleep loss. Most people need 8 hours of sleep a day to feel 29 . Parts of the night sleep are spent in light sleep stages and the other parts of the night are spent in deep sleep stages. If you work the night shift and sleep during the day, there are many things that can 30 your deep sleep and awaken you during your light sleep phase. Noise is the biggest problem. Daytime sleepers have to 31 noisy neighbors, children, traffic, lawn mowers and such. Noise is the most common 32 of people who sleep during the day, so noise prevention should be given top priority. When looking for a home to rent or buy, always look for one in a quiet 33 Another sleep 34 is too much light. Our bodys entire cycle is based upon light and dark. If you are doing the opposite of this set body program, you are 35 generations of programming. Since sunlight will disturb your day you should choose a house where the bedroom is on the north side of the house. Wear a black eye mask to further block out the light while you are sleeping. 第26题应填____

A、Me, too.

B、You work too hard.

C、Why don’t you talk to your doctor?

D、Why bother?

Did you sleep well last night? Maybe many people will answer No.In fact, in the world about one in three people do not have good sleep.(1) you say you do not have good sleep, it means waking early and not getting back to sleep, of ten interrupted short period of sleep, or hours or wakefulness.You (2) get tired, worried, and anxious.Your menory and ability to remember things will be affected

Then what should you do when you have the trouble? Do not worry about it too much.First, let' s see whether you can sleep yourself.The ways are as follows:

First,(3)that your bedroom isn' t too cold or too hot Keep it dark aha quiet.

Second, check your lifestyle.:

Do not drink tea, coffee, cola or chocolate four hours before going to bed.Drink less liquid so that you can have no or fewer visits to the toilet

Set your body clock well by getting up and going to bed he fixed time every day.You (4) take any day time naps.

Develop a relaxing bedt ime habit.Read or listen to music.then take a warm bath.If you really can not sleep, try some bread, rice or mil.They will help you fall asleep.

Go for a daily walk.Natural light helps you to put your body clock into correct habits,(5) do exercise outdoors if you can.

Forget the worries of the day.Write down any worries,thoughts or uestions before you go to bed.With these written down, you will have less to think about and your sleep will become easier.(完型填空)

A.Make sure

B.May

C.If

D.Had better

E.So

A、you fly

B、flying

C、flight

D、your flight

Stress is the feeling you get when you're really worried about something． This is the kind of worry that troubles you for hours，or even days．It makes you feel (11)，scared(恐惧的)，or angry． You may find it difficult to eat and sleep，or you might eat and sleep much(12) than usual． Stressing out will lead to serious 'problems like heart illness．(13) not all stress is bad for you． The good kind (14) your body and mind alert(机敏的) and can make you perform better，like when you're giving a speech to your class or running to the finish line．

What causes stress? Do you know(15) your dad is worried about the bills，or your mom is unhappy? Because they're stressed out! There are lots of things in your life that ,(16) cause stress-having too much homework，taking a test in a subject that you are not good (17) ，or hearing your parents argue!

There are some ways to (18) stress． If you're stressed out，try these quick and easy

ways to relaxt Take part in sports and out-of-class activities． Try to get at least eight hours of sleep every night． Eat a healthy，balanced (19) that includes all kinds of food． Talk with your close friends，family members or teachers: It'll make you feel better，and (20) may be able to give you advice and help you solve your problem．

( )11．

A．calm

B．excited

C．surprised

D．upset

Passage Four

After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the activities of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.

There are four levels of sleep, each being a little deeper than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you reach the fourth level, your body shifts back and forth from one level of sleep to the other.

Although your mind slows down, from time to time you will dream. Scientists who study sleep state that when dreaming occurs, your eyeballs begin to move more quickly (although your eyelids are closed). This stage of sleep is called REM, which stands for rapid eye movement.

If you have trouble falling asleep, some people recommend breathing very slowly and very deeply. Other people believe that drinking warm milk will help make you drowsy. There is also an old suggestion that counting sheep will put you to sleep!

46. A good title for this passage is ______.

A. Sleep

B. Good Health

C. Dreams

D. Work and Rest

A. Something

B. Nothing

C. Anything

D. Everything

A.Wrong.

B.Right.

—Ken, ________, but your TV is going too loud. —Oh, I’m sorry. I’ll turn it down right now.

A. I’d like to talk with you B. I’m really tired of this

C. I hate to say this D. I need your help