Transitions are the glue that holds a paragraph to...

29. International joint ventures are people intensive. It is the people relationships that are the glue that holds them together. Good people relationships between partners are the rudders which steer joint ventures through troubled waters. A：国际合资企业是人力密集型企业。人际关系把他们联系在一起，是为粘合剂。伙伴之间的关系是舵，带领合资企业渡过难关。 B：国际合资企业是人员密集型的。把人员集合在一起的翻合剂，便是人际关系。合资伙伴之间的和谐关系犹如船舵，能引导合资企业穿过惊涛骇浪。

● A glue that holds the whole Internet together is the network layer protocol,(71). Unlike most older network layer protocols, it was designed from the beginning with internetworking in mind. Its job is to provide a -(72) way to transport datagrams from source to destination, without regard to whether these machines are on the same network or whether there are other networks in between them.

Communication in the Internet works as follows. The (73)layer takes data streams and breaks them up into datagrams. Each datagram is transmitted through the Internet, possibly being fragmented into smaller units as it goes. When all the pieces finally get to the destination machine, they are reassembled by the

(74) layer into the original datagram. This datagram is then handed to the transport layer, which inserts it into the receiving process' input stream.

An IP datagram consists of a header part and a text part. The header has a (75) part and a variable length optional part.

(71) A. IP (Internet Protocol)

B. IP (Interworking Protocol)

C. TCP (Transport Control Protocol)

D. TCP (Transfer Communication Protocol)

(72) A. best-quality

B. quality-guaranteed

C. connection-oriented

D. best-efforts

(73) A. data link

B. transport

C. network

D. application

(74) A. data link

B. transport

C. network

D. application

(75) A. 40-byte fixed

B. 64-byte fixed

C. 20~64 bytes variable

D. 20-byte fixed

● A glue that holds the whole Internet together is the network layer protocol,(71). Unlike most older network layer protocols, it was designed from the beginning with internetworking in mind. Its job is to provide a -(72) way to transport datagrams from source to destination, without regard to whether these machines are on the same network or whether there are other networks in between them.

Communication in the Internet works as follows. The (73)layer takes data streams and breaks them up into datagrams. Each datagram is transmitted through the Internet, possibly being fragmented into smaller units as it goes. When all the pieces finally get to the destination machine, they are reassembled by the

(74) layer into the original datagram. This datagram is then handed to the transport layer, which inserts it into the receiving process' input stream.

An IP datagram consists of a header part and a text part. The header has a (75) part and a variable length optional part.

(71) A. IP (Internet Protocol)

B. IP (Interworking Protocol)

C. TCP (Transport Control Protocol)

D. TCP (Transfer Communication Protocol)

(72) A. best-quality

B. quality-guaranteed

C. connection-oriented

D. best-efforts

(73) A. data link

B. transport

C. network

D. application

(74) A. data link

B. transport

C. network

D. application

(75) A. 40-byte fixed

B. 64-byte fixed

C. 20~64 bytes variable

D. 20-byte fixed

Passage 1 Falls are the number one cause of death to old people at home. Most old people can live safely at home if they make a few changes. Falls are common as people are getting older. Up to half of home accidents could be prevented by making some very simple changes. Here are a few suggestions. Mark trouble spots with bright tapes. The first and last steps on stairs are usually high-risk accident are- as. Applying bright tapes and using bright light in these areas would make these spots easier to see. Put grab bars(扶手) in the bathroom. A large number of falls occur in the bathroom. This is unfortunate(不幸的) because it's easy to make the area safe from accidents. Putting grab bars in the bathroom gives people something to hang on to. Invest in a personal alarm. A personal alarm can be started if a person falls or otherwise gets in trouble. With the push of a button, the alarm automatically sends a signal, which gets someone to call and see if the person needs help. 题目： 1. By making some very simple changes at home, old people ______.

A、are free from home accidents

B、can improve their health

C、are likely to live longer

D、can live more safely

What does Ruth think of the "good old days" ?

A．good old days are terrible.

B．good old days were much better than nowadays.

C．good old days have got some serious problems.

D．People living in the "good old days" may worry about their meals.

Questions 6 to 10 are based on the followingpassage:

It is difficult to imagine what life would belike without memory. (78) The meanings of thou-sands of everydayperceptions, the bases for the decisions we make, and the roots of our habitsand skills are to be found in our past experiences，which are brought into thepresent by memory.

Memory can be defined as the capacity to keepinformation available for later use. It includes not only “remembering” thingslike arithmetic or historical facts, but also involving any change in the wayan animal typically behaves. (79) Memory is involved when a rat gives upeating grain be-cause he has sniffed something suspicious in the grain pile. Memoryis also involved when a six- year-old child learns to swing a baseball bat.

Memory exists not only in humans and animalsbut also in some physical objects and ma-chines. Computers, for example,contain devices for storing data for later use. It is interesting to comparethe memory-storage capacity of a computer with that of a human being. Theinstant-access memory of a large computer may hold up to 100,000 “words”一ready for instant use. An averageU. S.teenagerprobably recognizes the meaning of about 100,000 words of English. However,this is but a fraction of the total amount of information which the teenagerhas stored. Consider, for ex-ample ，the number of faces and places that the teenager can recognize on sight.

The use of words is the basis of the advancedproblem-solving intelligence of human beings. A large part of a person’s memoryis in terms of words and combinations of words.

6. Accordingto the passage, memory is considered to be_____________.

A.the basis for decision making and problem solving

B.an ability to store experiences for future use

C.an intelligence typically possessed by human beings

D.the data mainly consisting of words and combinations of words

It is implied in the concluding paragraph that ______.

A．European old member countries are poor and homogenous

B．Europe's leaders are bewildered by the crucial summit

C．Europe's politicians should heed their voters' dissatisfaction

D．European coincidences might emerge due to the economic stagnation

It is implied in the concluding paragraph that______.

A．European old member countries are poor and homogenous

B．Europe's leaders are bewildered by the crucial summit

C．Europe's politicians should heed their voters' dissatisfaction

D．European coincidences might emerge due to the economic stagnation

Maybe ten-year-old Elizabeth put it when she said to father, "But, Dad, you can't be healthy if you're dead."

Dad，in a hurry to get home before dark so he could go for a run，had forgotten to wear his safety belt - a mistake 75% of the US population make every day.The big question is why.

There have been many myths about safety belts ever since their first appearance in cars forty years ago. The following are three of the most common.

Myth Number One：It's best to be "thrown clear" of a serious accident.

Truth：Sorry, but any accident serious enough to"throw you clear"is also going to be serious enough to give you a very bad landing. And chances are you'll have travelled through a windshield(挡风玻璃)or door to do it. Studies show that chances of dying after a car accident are twenty-five times greater in cases where people are "thrown clear".

Myth Number Two：Safety belts "trap" people in cars that are burning or sinking in water.

Truth：Sorry again, but studies show that people knocked unconscious(昏迷)due to not wearing safety belts have a greater chance of dying in these accidents. People wearing safety belts are usually protected to the point of having a clear head to free themselves from such dangerous situations, not to be trapped in them.

Myth Number Three: Safety belts aren't needed at speeds of less than 30 miles per hour(mph).

Truth: When two cars traveling at 30 mph hit each other, an unbelted driver would meet the windshield with a force equal to diving headfirst into the ground from a height of 10 meters.

1. Why did Elizabeth say to her father, "But, Dad, you can't be healthy if you're dead"? _____

A. He was driving at great speed.

B. He was running across the street.

C. He didn't have his safety belt on.

D. He didn't take his medicine on time.

2. The reason Elizabeth's father was in a hurry to get home was that he _____.

A. wasn't feeling very well

B. hated to drive in the dark

C. wanted to take some exercise

D. didn't want to be caught by the police

3. According to the text, to be "thrown clear" of a serious accident is very dangerous because you _____.

A. may be knocked down by other cars

B. may get seriously hurt going thrown out of the car

C. may find it impossible to get away from the seat

D. may get caught in the car door

4. Some people prefer to drive without wearing a safety belt because they believe _____.

A. the belt prevents them from escaping in an accident

B. they will be unable to think clearly in an accident

C. they will be caught when help comes

D. cars catch fire easily

5. What is the advice given in the text? _____

A. Never drive faster than 30 miles an hour.

B. Try your best to save yourself in a car accident.

C. Never forget to wear the safety belt while driving.

D. Drive slowly while you're not wearing a safety belt.