选择知识点

It was already past midnight and only three young men          in the tea house．（　　）

It is popular to travel by bike in China．China has a huge population．And it is said that there is at least one bike for every two people．Of course，many people in China ride bikes for sport or exercise，but it is also a much more commonly accepted means of everyday transportation，as compared to countries such as the United States．
If you are living for a long time in China，chances are that you will want to buy your own bike so that you can use it whenever you want．Even if you don't use a bike for everyday transportation，owning one can be a great way to enjoy the sights in the countryside．However，if you are just visiting China，renting a bike can be a more convenient choice．
It is important to choose the correct bike for your use．You will find that in China，the one-speed style of bike is popular．These bikes are great if you want to ride around in the city to see the sights．They are quite comfortable and easy to ride．You can often rent a bike for a day for about 15 dollars．
However，if you wish to ride on some of the rural paths，a mountain bike style would be a better choice．They are great for different kinds of road surfaces，providing for a safer ride．If you are planning to have a wish to tour and still be able to carry packages with you，then a touring bike would be the best choice．These are the most expensive to rent，but are very suitable for carrying packages and even some of your luggage along with you．



If you are traveling in Beijing，you had better ______ ．

A. buy a bike
B. borrow a bike
C. steal a bike
D. rent a bike

Which of the following is the advantage of the one-speed bike？ ______

A. It is worth at least 15 dollars
B. You can't ride in the countryside
C. It is easy for you to travel in the city
D. You have to return it the next day．

You would like to own a touring bike probably because ______ ．

A. you have to ride on the road in the countryside
B. you have some packages to carry while traveling
C. you want to enjoy the sights in the big cities
D. it is suitable for all kinds of road surfaces

A warm drink of milk before bed has long been the best choice for those wanting a good night's sleep． But now a study has found it really does help people nod off-if it is milked from a cow at night．
Researchers have discovered that "night milk" contains more melatonin（褪黑激素）， which has been proven to help people feel sleepy and reduce anxiety．
The study， by researchers from Seoul， South Korea， involved mice being fed with dried milk powder made from cows milked both during the day and at night．
Those given night milk， which contained 10 times the amount of melatonin， were less active and less anxious than those fed with the milk collected during daytime， according to the study published in The Journal of Medicinal Food．
Night milk quickened the start of sleep and caused the mice to sleep longer．
While the effect of cows milk harvested at different time has not been tested on humans up to now， taking melatonin drugs has been suggested to those who are struggling to fall asleep at night．
Previous studies have also indicated that milk can be excellent for helping sleep because of the calcium content， which helps people to relax．
Milk is also sugar-free and additive-free with nutritionists recommending skimmed milk as the best choice before bed as it is the least fattening． The more fat you take in before bedtime， the greater burden you will put on your body at night．



According to the text， the mice fed with daytime milk ______ ．

A. started sleep more easily
B. were more anxious
C. were less active
D. woke up later

Which of the following is true of melatonin according to the text？ ______

A. It's been tested on mice for ten times．
B. It can make people more energetic．
C. It exists in milk in great amount．
D. It's used in sleeping drugs．

What can be a suitable title for the text？ ______

A. Night Milk and Sleep
B. Fat， Sugar and Health
C. An Experiment on Mice
D. Milk Drinking and Health

How does the author support the theme of the text？ ______

A. By giving examples．
B. By stating arguments．
C. By explaining statistical data．
D. By providing research results．

There is an English saying that"Laughter is the best medicine．"Until recently，few people took the saying seriously．Now however，doctors have begun to look into laughter and the effects it has on the human body．They have found that laughter can really improve people's health．
Tests were carried out to study the effects of laughter on the body．People watched funny films while doctors checked their hearts，blood pressure，breathing and muscles．It was found that laughter has similar effects to physical exercise．It increases blood pressure，makes the heart beat quicker and makes people breathe deeper； it also works on several groups of muscles in the face，the stomach，and even the feet．If laughter exercises the body，it must be beneficial．
Other tests have shown that laughter appears to be able to reduce the effects of pain on the body．In one experiment doctors produced pain in groups of students who listened to different radio programs．The group that tolerated（忍耐）the pain for the longest time was the group which listened to a funny program．The reason why laughter can reduce pain seems to be that it helps to produce a kind of chemical in the brain which diminishes both stress and pain．
As a result of these discoveries，some doctors in the United States now hold laughter clinics，in which they help to improve their patients'condition by encouraging them to laugh．They have found that even if their patients do not really feel like laughing，making them smile is enough to produce beneficial effects similar to those caused by laughter．



According to the passage，which of the following statements is WRONG？ ______

A. Laughter is good for health．
B. Laughter can make you become old quickly．
C. Laughter helps to reduce pain．
D. Laughter，just like physical exercise，is good for our body．

The underlined word"diminishes"in the third paragraph means ______ ．

A. delays
B. prevents
C. increases
D. reduces

Why do some doctors hold laughter clinics？ ______

A. Because they want to earn more money．
B. Because they think they will help the patients recover from illnesses．
C. Because they want to improve their patients'condition．
D. Because they want their patients to practice how to laugh

According to the author，we should ______ ．

A. laugh as much as possible
B. watch more funny films
C. smile all the time
D. spend more time in laughter clinics．

Before giving evidence, a witness has to swear an oath(誓言). If he ________ gives false evidence, he shall take legal responsibility.

The job applicant was not qualified for the vacant position as he didn’t have the______ experience as required for the job.

John thinks it won't be long                     he is ready for his new job．（　　）

Although we produce carbon when we breathe， the carbon we produce is much less than        produced by a car．（　　）