What was the one thing Bill said he enjoyed？ 查看材料A.

It is one ________ best sellers in our country now.

[A] of them

[B] of those

[C] of this

[D] of their

What is the 'biggest city in the world？ That is, (21) city has the largest population？ This seems like (22) question to answer, but actually it isn't.

It's actually rather difficult to say which cities (23) the largest. There are two reasons for this difficulty. First of all, it isn't easy to determine a city's boundaries, that is, where a city ends. Nowadays, nearly all cities have a large (24) area around them. So when we talk about the population of a city, we often mean the population of the whole metropolitan area around the city. That means that it's difficult to determine what the population of a city is because it's difficult to define what a city is.

The second reason that it is difficult to 25 the population of different cities is this: it is almost impossible to get (26) about the population of all cities for the same year. For example, we might get an estimate of New York's population in 1979 and an (27) of Mexico City's population in 1981. So we real ly can't compare the numbers because the information is for (28) different years. And the population of cities changes rather quickly, especially in some cases. For example, the population of Jakarta, Indonesia, may increase by 5% each year, so the population figure will change rather quickly.

So we can say that these are our two (29) for comparing the populations of cities: one, it's difficult to determine the (30) of a city, and two, it is difficult to get accurate information.

21. A. what

B. which

C. where

D. how

A.Yes, I think so

B.It's hard to say

C.Impossible

D.That’s unlikely.

A.A.一 _________________________________-

B.B. This one isn't that expensive and it's near the bus stop.

C.C. Don't you remember？ We both went to Jane's party last week.

D.D. Well,I,d rather have my own plac

Researchers have found that REM(rapid eye movement)sleep is important to human beings. This type of sleep generally occurs four or five times during one night of sleep lasting five minutes to forty minutes for each occurrence. The deeper a persons sleep becomes, the longer the periods of rapid eye movement. There are physical changes in the body to show that a person has changed from NREM(non-rapid eye movement)to REM sleep. Breathing becomes faster, the heart rate increases, and, as the name implies, the eyes begin to move quickly. Accompanying these physical changes in the body there is a very important characteristic of REM sleep. It is during REM sleep that a person dreams.

According to the passage, how often does REM sleep occur in one night？

A．Once.

B．Twice.

C．Four or five times.

D．Forty times.

Seated Exercise Series: Chair Aerobics

When most people think of exercise, they usually think of things like running, jogging, jumping rope, lifting heavy weights, and so on. And all of these weight-bearing exercises involve the bones and muscles working against gravity. If you have problems standing for long periods of time, Chair Aerobics is the exercise for you.

Chair Aerobics lets you exercise your body while sitting in a chair. Consider the following:

Chair aerobics is performed for about 20-30 minutes and consists of rhythmic movements.

It is a low-impact exercise with almost no potential for damage to joints and enables you to perform. your daily routine activities effectively.

It lets you move your arms and legs to music while taking the weight off your feet.

You don't need special clothes, shoes, or space.

No equipment other than a chair is required.

Like any other physical exercise, it can improve your muscle tone, flexibility, and posture.

Chair Aerobics for Everyone is a great exercise video for men and women of all ages.

Included in the training video: Upper Body Workout Lower Body Workout Abdominal Toning Cool-down

Newington Health & Wellness Co.

Newington Town Hall 131 Cedar St,

Newington, CT 06111

Phone: (860) 665-8500 / M-F 8:30 a.m.-4:30 p.m.

Total Health Magazine

Fall 2007

Which machine is your favorite？

People do not always burn the same number of calories on one exercise machine as on another.

A recent study was conducted on the number of calories expended by healthy men and women in their twenties while they exercised on four different machines. The intensity of their exercise was categorized as "fairly light" , "somewhat hard" , or "hard" and showed the following results:

Both men and women burned the most calories on the treadmill and the least on the stationary bicycles.

The stair climber and the rowing machine were in the middle for both men and women.

Whatever the equipment is, that men burned more calories than women did is the physiological fact that pound for pound, men have more muscle than women, and muscles burn more calories than fat does. In addition, it takes more calories to move a larger person and men are usually bigger than women.

Be sure to consult a trainer before starting any of these exercise programs as they involve impact pressure, which is often associated with physical injury.

What is NOT mentioned in the advertisement as a conventional form. of exercise？

A．Basketball

B．Jogging

C．Running

D．Weight lifting

Energy is()makes one work.

A. what

B．something

C．anything

D. that

(What’s Wrong with Our Press？) Many newspapers are owned by one party. ()

A.one

B.that

C.what

D.it

No one can be sure()in a million years.

A、 what man will look like

B、 what will man took like

C、 man will look like what

A.speak

B.talk

C.declare

D.predict