单选题According to the passage, it would appear that most sore throats ______.A require an immediate visit to a doctorB respond quickly to treatment with an antibioticC rarely turn out to be serious illnessesD result in tonsillitis even when treated

According to the passage，a great variety of influenza strains can appear when______.

A. H and N spikes are produced

B. animal and bird viruses are combined

C. dissimilar types virus recombine

D. two viruses of the same type are contracted

In-flight emergency In the plane, Dr Wong and I ________(1) were called by the attendant to see a passenger, Paula, who had broken her arm ________(2) to the airport. It seemed to us at first that she was not in a serious condition, so we decided to put the arm into a splint after the plane had taken off. This treatment was carried out successfully, and the patient was left to get a good night’s sleep. But ________(3)we were called again later in the night, we found Paula suffering from severe pain in the chest because one of her lungs had ________(4). Her condition was rapidly becoming worse, and she would die very quickly without immediate ________(5). We decided to carry out an emergency operation using whatever instruments were available. Fortunately, the operation turned out to be successful, and Paula completely recovered two weeks later.

1.

A、ourselves

B、himself

C、myself

D、us

2.

A、in the way

B、by the way

C、to the way

D、on the way

3.

A、before

B、since

C、until

D、when

4.

A、exploded

B、exposed

C、collapsed

D、clashed

5.

A、medicine

B、treatment

C、measurement

D、solution

According to the passage, what is the most important job for a perfect mom?

________________________________________________________

It is said in th．e passage that when the economy slides ( )．

A． men would choose working women as their marriage partners

B． more women would get married to seek financial security

C． even working women would worry about their marriages

D． more people would prefer to remain single for the time being

According to this passage, ______may result in the imbalance of bacteria in your intestines.

A) antibiotic treatment for an ear infection

B) taking pills which contain freeze-dried germs

C) eating yogurt or buttermilk

D) eating products made from fermented milk

(A Most Forgiving Ape) When the author and his party se out that morning, he was quite certain that he would meet the gorillas.()

First aid ( 急救 ) is the care given to the injured or sick as soon as possible after an accident or illness. It is this immediate care and attention before the arrival of the ambulance that sometimes means the difference between life and death, or a full or partial recovery. First aid has limitations, as not everybody is a doctor or expert, but it is a key element of the total medical system. The principle to be adopted in first aid is immediate action. By-standers ( 旁观者 ) or relatives not knowing what to do, or being too fearful to try, have unwisely contributed to unnecessary deaths and worse injuries. It is important that any action taken by the first aid provider is started as quickly as possible. Quick action is necessary to save life and parts of the body. One who is not breathing effectively, or is bleeding heavily, requires immediate help. If quick effective first aid is provided, then they have a much better chance of a good recovery. But it should be remembered that any action taken is to be most careful, and fright ( 恐慌 ) by the first aid provider and by-standers will not be good to the whole thing. Try to remain calm and think your actions through. A calm and controlled first aider will give everyone confidence that the event is being handled efficiently and effectively.

1.The most important thing in providing first aid is to ( ).

A、call for an ambulance

B、prevent bleeding

C、know what to do

D、act quickly

2.According to the passage, some injured or sick people died as a result of ( )

A、other people's hesitation to offer first aid

B、unprofessional first aid

C、unnecessary first aid

D、unwise suggestions by by-standers

3.The writer seems to suggest that if you don't know much about first aid, you should ( )

A、call for help from professionals.

B、still try to help

C、stand by and not try to help

D、learn it from a doctor

4.While offering first aid, the helper should ( )

A、be self-controlled

B、have others to assist him

C、have confidence in the sick person

D、get rid of they by-sanders

5.Which of the following is TRUE according to the passage ( )?

A、One should not apply first aid to the injured without knowing the cause of the accident.

B、It is easy to carry out first aid if one has the necessary facilities.

C、First aid is an important part of the whole treatment.

D、First aid may not be effective before a doctor or expert comes.

According to the passage，most farmers' debts had to be paid______.

A. when the autumn harvest had just been completed

B. because wheat prices were high

C. as soon as the Winnipeg Grain Exchange demanded payment

D. when crop failure caused depression

第三组：

The sewage treatment system must be capable of discharging an effluent that comes within the limits of the tests. Sewage can be treated biologically so that it may be discharged with minimal damage to ecosystem. Biological treatment involves the use of living organisms to treat the sewage within the sewage treatment plant so the liquids and sludge discharged are within the standards specified.

Biological treatment plants are usually built up as a module and consist of various sections.

Waste matter collected from the ships sanitary appliances is led through a sanitary piping system to the treatment module. The solid matter is broken up by passing it through a screen or a series of revolving cutters. The broken up solid material, together with the waste liquid, passes into a tank containing bacteria which require oxygen and a nutrient to propagate. The nutrient is contained in the solid waste material, and oxygen is supplied by bubbling compressed air through the broken up waste. The propagated bacteria change the waste material into a sludge by aerobic digestion. The sludge is finally treated to kill the coliform. bacteria before it is passed overboard.

When a biological sewage plant is started up, such as when activating a new ship or after cleaning out the tank, a pellet containing bacteria is introduced into the tank. It takes approximately one week for the bacteria to propagate and make the system fully effective. The choice of sanitary appliance cleaners requires extreme care, as many cleaners are toxic to the active bacteria. Once a biological sewage plant is made active it should not be shut down. If it is it will have to be reactivated again because the bacteria will die without a supply of nutrients and oxygen.

Bacteria that require oxygen for their survival are referred to as aerobic. Aerobic bacteria are normally used in ships&39; sewage treatment equipment. Other forms of bacteria that do not require oxygen are referred to as anaerobic. Anaerobic bacteria are used in shore based sewage treatment works where methane is obtained as a by-product for use as fuel.

This passage is mainly about

A.sewage treatment methods

B.the various sections of a sewage treatment plants

C.biological sewage treatment system

D.how the sewage treatment plants are started up

According to the passage,which of the following is true? ( )

A． Tell the truth,even when you are wrong．

B． Keep some animals to kill them．

C．Look down on new ideas．

D． Everything on the Internet is good for children．