网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
A dentist may decide to extract the tooth to prevent recurrent trouble?
A:take out
B:repair
C:pull
D:dig
B:repair
C:pull
D:dig
参考答案
参考解析
解析：本句意思：牙医可能会决定拔掉牙齿以防止病情反复。extract意思是“取出，提出”，与takeout（拔出，取出）意思相近。repair修理；pull拉；dig挖。第2部分：阅读判断
更多 “A dentist may decide to extract the tooth to prevent recurrent trouble?A:take out B:repair C:pull D:dig” 相关考题
考题
If you travel in a foreign country, a tour ________ may save you a lot of trouble.
A.directorB.guideC.helperD.assistant
考题
By observing the behavior. of animals, scientists may be able toA．prevent disasters.B．organize groups of people.C．predict earthquakes.D．control areas of California.
考题
There are many cavities in your teeth. You must go to ( ) now.
A、dentistB、the dentists'C、the dentist'sD、the dentist
考题
Having your smartphone or computer ____ may cause a lot of trouble to you.
A、damagedB、damageC、damagingD、to damage
考题
III．阅读理解． (20分)ADentists always ask questions when it is impossible for you to answer．One day ,my dentist had just pulled out one of my teeth and asked me to sit in a chair to rest for a while． I tried to say something ,but my mouth was full of cotton-wool(药棉)． He knew I collected stamps and asked me whether I got any new recently． He then asked me how my brother was and whether I liked my new job．As I could not speak ,l either nodded or made strange noises to answer these questions． At the same time ,l tr;ed hard to use my tonguec舌头） to find the hole(洞) in the place of my bad tooth． Suddenly I felt very worried because the bad tooth was still there ,but I could not say any- thing． At last the dentist pulled the cotton-wool out of my mouth ,and I was able to tell lum that he had pulled out the wrong tooth．( )21． Why did the dentist ask me to rest for a while?A． I felt tired．B． I felt painful．C． I just had a tooth pulled out．
考题
25． When did I tell the dentist he had pulled out the wrong tooth in the end?A． After the tooth was pulled out of my mouth．B．After the cotton-wool was pulled out of my mouth．C． When the dentist was asking me questions．
考题
A dentist may decide to extract the tooth to prevent recurrent trouble.A:take out
B:repair
C:pull
D:dig
考题
Dairy products may provoke allergic reactions in some people.A:demand
B:elicit
C:extract
D:defy
考题
The only way to cure your toothache is to extract your bad tooth.A:take out
B:repair
C:push in
D:dig
考题
Sometimes children have trouble ______fact from fiction and may believe that such things actually exist.A.to separate
B.separating
C.for separating
D.of separating
考题
单选题The trouble-free life of an engine indicates （）.A
the period of time during which no trouble occurs to the engineB
no trouble will occur to the engine all its lifeC
trouble may occur freely to the engineD
no matter what you do to the engine, no trouble will occur during this period
考题
单选题If a refrigeration compressor is running continuously without lowering the temperature in the refrigerated space, the trouble may be （）.A
a shortage of compressor oilB
warm food in the refrigeratorC
excessive condenser cooling waterD
a shortage of refrigerant
考题
单选题The lighthouse if（）at night may be in trouble.A
invisibleB
it is invisibleC
isn't visibleD
unvisible
考题
单选题Topping wires fix the height of the derricks and （） to the deck may be used to prevent fore and aft movement.A
staysB
winchesC
barrelsD
brakes
考题
单选题A: May I see the dentist now? B: ______A
Is it real emergency?B
Do you have an appointment?C
In that case, you’ll have to wait.D
I’ll talk to the dentist and squeeze you in.
考题
单选题If an auxiliary diesel engine frequently stalls, the trouble may be caused by （）A
low exhaust back pressureB
air in the fuel systemC
gasket blow-by or leakageD
incorrect assembly of idler springs
考题
单选题A wooden plug fitted tightly in the vent of a damaged tank may prevent the tank from（）.A
filling completelyB
developing free surfaceC
developing free surface momentD
collapsing
考题
问答题The extract below comes from an article which appeared in a magazine called Society Today. You read the extract and have strong feelings about its contents, and decide to write an article, in which you respond to the points made and express your own views. You should write the article in no fewer than 120 words. Now write your letter on the answer sheet.
考题
问答题Dental Health Decay is not the only disease that can cause tooth loss. Another serious disease affects the gums, the tissue that surrounds the teeth. It is also caused by bacteria. If the bacteria are not removed every day, they form a substance that stays on the teeth. The substance is known as plaque. At first, the gums appear to be swollen, and may bleed when the teeth are brushed. This can lead to serious infection of the tissue around the teeth. The infection may damage the bone that supports the teeth and cause tooth loss and other health problems. Studies have found that people with severe gum disease have an increased risk of developing heart disease, diabetes and stroke. Gum disease can be treated by a special dentist called a periodontist. Periodontists are trained to repair the gum areas that have been damaged. This can be painful and costly. Dental health experts say the best thing to do is to stop gum disease before it starts. The way to do this is to clean the teeth every day. People also should use dental floss to remove plaque from between the teeth. Most experts also agree that another way to prevent tooth and gum problems is to eat foods high in calcium and vitamins and low in sugar. Scientists continue to develop better dental treatments and equipment. Improved technology may change the way people receive dental treatment in the future. For example, dentists are now suing laser light to treat diseased gums and teeth. Dentists use computer technology to help them repair damaged teeth. Researchers have developed improved methods to repair bone that supports the teeth. And genetic research is expected to develop tests that will show the presence of disease causing bacteria in the mouth. Such increased knowledge about dental diseases and ways to prevent them has improved the health of many people. Yet problems remain in some areas. In industrial countries, minorities and other groups have a high level of untreated dental disease. In developing countries, many areas do not have even emergency care services. The World Health Organization says people in countries in Africa have the most tooth and gum problems. World Health Organization experts say the dental health situation is different for almost every country in the world. As a result, it has developed oral health programs separately for each area. The WHO oral health program is mainly for people living in poor areas. It provides them with information about mouth diseases and health care. It also studies preventive programs using fluoride in water, salt, mild and toothpaste. And it explores ways to include dental health in national health care systems. Many governments and other organizations provide help, so people can get needed dental health services. But dental health professionals say people should take good care of their teeth and gums. They say people should keep their teeth as clean as possible. They should eat foods high in calcium and fiber. These include milk products, whole grain breads and cereals, vegetables, fruits, beans and nuts. Recent studies have shown that eating nuts can help slow the production of plaque on the teeth. Experts say these activities will help everyone improve their dental health throughout their lives.
热门标签
最新试卷
