With your workload growing, you may be telling yourself a vacation is one luxury (奢侈) you can't afford. But the truth is that you can't afford not to take one. A vacation allows you the opportunity to recharge (充电) your physical and emotional batteries, disconnect from everyday concerns, and return to work rested and refreshed. Some facts have proved employees are more productive after a vacation than before one. Here are some tips for you to plan your vacation to make sure that your time away from the office is worry free.

　 Time is right. A Robert Half survey shows that July and August are the most favorable months for employees to take a break because these months offer ideal beach weather and many businesses slow down during this time. When planning your vacation, remember to take into account any activity that your department will be focused on during that time. For instance, if a big task is planned for the summer, you may consider putting off your trip until the fall.

　 Ask others for assistance. Ask trusted colleagues to handle your projects while you're away. Your supervisor can help you determine who is the most qualified for a particular task.

　 Let your contacts know. Give colleagues and customers you frequently work with a few weeks' notice before you start off. This will give them enough time to plan for your absence.

　 Conduct a technical review. Before you leave, make sure there is plenty of room in your e?mail inbox so that you don't exceed (超越) your storage limit while you're out of the office, which might prevent you from sending messages when you return. Also make sure passwords won't expire (过期) while you are away.

　 In short, taking vacation is necessary and beneficial for your job. But you must plan your vacation properly in order to be work?free and worry?free on holiday.

Title: How to Be Work?Free on Vacation?

__71__,　 ●Recharging your physical and emotional batteries.

●Disconnecting from daily __72__.

●Returning to work rested and refreshed.

●Making you more __73__.

__74__ ,

Find a __75__ time●Had better take your vacation in July and August.

●Consider any __76__ your department will be focused on.

Ask for __77__Let your contacts know

__78__ your colleagues and customers a few weeks before your vacation begins.

Conduct a technical reviewMake your e?mail inbox have enough __79__.

●Make sure __80__ won't expire.

Summary,●Plan your vacation properly to be work free and worry free.

难易度：

答案：

71．Benefits / Advantages　72.concerns　73.productive　74.Tips / Suggestions / Advice　75.suitable / right　76.activity　77.help / assistance

78．Inform　79.room　80.passwords

阅读下列短文，根据所读内容在文章后的表格中填入恰当的单词。注意：表格中的每个空格只填1个单词。

As the pace of life continues to increase, we are fast losing the art of relaxation. Once you are in the habit of rushing through life, being on the go from morning till night, it is hard to slow down. But relaxation is essential for a healthy mind and body.

　 Stress is a natural part of everyday life and there is no way to avoid it. In fact, it is not the bad thing it is often supposed to be. A certain amount of stress is vital to provide motivation and give purpose to life. It is only when the stress gets out of control that it can lead to poor performance and ill health.

　 The amount of stress a person can bear depends very much on the individual. Some people are not afraid of stress, and such characters are obviously prime material for managerial responsibilities. Others lose heart at the first signs of unusual difficulties. When exposed to stress, in whatever form, we react both chemically and physically. In fact we make choice between “flight or fight”. And in more primitive days the choices made the difference between life or death. The crises we meet today are unlikely to be so extreme, but however little the stress, it involves the same response. It is when such a reaction lasts long, through continued exposure to stress, that health becomes endangered. Such serious conditions as high blood pressure and heart diseases have established links with stress. Since we cannot remove stress from our lives (it would be unwise to do so even if we could), we need to find ways to deal with it.

　 So what do you think of stress? What is your way to deal with it？

Title	Stress
Fact	It's becoming more and more difficult for people to find time to (76)________．
Reason	People's pace of life has been (77)________ all the time.
Advice	It's necessary to spend some time enjoying yourself if you want to keep healthy (78)________ and physically.
Advantages	It provides people with motivation and (79)________ in their life.
Disadvantages	●It leads to terrible(80)________ and bad health. ●There's a (81)________ between some diseases and stress.
Reactions	●Some people are not afraid of stress. ●Others feel (82)________　 when meeting unusual difficulties. ●We react both chemically and physically in face of stress. ●We have to (83)________ between “flight or fight”．
(84)________	Since we cannot remove stress from our lives, we must learn to (85)________ it.

 

　　If we wish to write an equation for the chemical reaction between the elements phosphorus and oxygen, we begin with the formulae for the molecules of phosphorus and oxygen．

　　P4 (s) + O2 (g)--->　　　　[※s = solid , g = gas ．]

　　Again, we state the formulae of the molecules which react;by writing P4 and O2, we indicate or show that a molecule of phosphorus has four atoms, while a molecule of oxygen has two atoms ．

　　The product of this reaction is the compound phosphorus oxide:

　　P4 (s) + O2 (g)--->　　　　P4O10 (s)

　　Again wesee that a chemical unit of the new compound has two types of atoms． Each chemical unit contains or has four phosphorus atoms and ten oxygen atoms． This equation correctly gives the formulae of the reactants and the products, but, as it is written, mass is not conserved or kept． Only two atoms of oxygen enter the reaction, but ten atoms of oxygen appear in the product． This equation cannot be correct． Ten atoms of oxygen must have come from five molecules of oxygen． So we must make the following correction:

　　P4 (s) + 5O2 (g)---> P4O10 (s)

　　Now the mass of oxygen is conserved;all the oxygen atoms in the product are present in the reactants．

　　Now the equation is correct． Mass is conserved, and both the reactants and the products are shown by correct formulae． This process or step by which we explain all the atoms in a reaction, and so show that mass is conserved or kept throughout the reaction, is called balancing a chemical equation． A chemical equation is not correctly written until it shows that the reactants and products obey or keep to the Law of Conservation of Mass． This law of chemistry states or says that: In an ordinary chemical reaction, atoms are neither created (= newly made) nor destroyed．

　　In many cases or very often, both the reactants and the products of chemical reactions are compounds． But, as always, the reaction results in a rearrangement or replacing of the atoms in the reactants to form new substances or things． For example, copper (II) oxide will react with hydrochloric acid to produce a salt, copper(II) chloride, and water．

　　CuO(s) + HCl (2q)---Cucl2(aq) + H2O (1)

　　[※aq = aqua/‘æ kw¶ / =liquid solution溶液;l = liquid ．]

　　Since we know the reactants and the products, we begin our equation by writing correct formulae for these compounds． Then we check or examine to see whether the Law of Conservation of Mass has been observed． We can see immediately that it has not, for two atoms of chlorine appear in the products while only one atom of chlorine is shown in the reactants． So we balance the numbers of chlorine atoms and check again．

　　CuO(s) + 2HCl (2q)---CuCl2(aq) + H2O (l)

　　Now the equation is correct． It tells us that each compound has two different types of atoms． During the reaction, these atoms have “changed patterns”, so to speak, and new arrangements have been formed to produce different compounds．

　　We have seen that elements may react with one another to form compounds, and since compounds may also react with one another to form new substances, the number and variety of chemical reactions which may occur are almost limitless． Chemical equations are a type of chemical shorthand which we use to show these reactions, but they do not tell us what will happen when elements or compounds react． We can write a correct equation only if we know both the reactants and the products． Suppose you knew that the element zinc reacts with hydrochloric acid to produce a salt, zinc chloride, and the element hydrogen． You would begin the chemical equation by writing correct formulae to show the chemical units of the reactants and the products:

　　Zn(s) + HC1(aq) ® ZnCl2 (aq) +H2(g)

　　Correct formulae for the chemical units of both elements and compounds are necessary． (All the common gases have two atoms per molecule, and you are fairly safe in supposing that most other elements have only one atom per molecule． However, you have seen a few exceptions to this rule earlier in the chemistry book you learned at school．) If you are satisfied that your formulae are correct, balance the equation to show that the Law of Conservation of Mass is observed during the reaction． In our example you can see that the two atoms of hydrogen and the two atoms of chlorine in the chemical units of the products must have come from two chemical units of the reactant, hydrochloric acid．

　　We show this fact as follows:

　　Zn(s) + 2HC1(aq) ® ZnCl2 (aq) +H2(g)

1．Which of the following is a correct equation?

A．P4B． P4O10 C． P4 + O2 ---> P4O10　　D． P4 + 5O2 ---> P4O10

2．Which of the following is an element?

A．P B． P4O10　　C． H2O D． CuO + 2HCl ---> Cucl2 + H2O

3．P4 shows that it 　　　　 ．

A．has four atoms　　B． is a new compound

C．is the formula of an element D． contains or has ten oxygen atoms

4．Whichof the following is a reactant in a chemical reaction?

A．P4O10 in P4 + 5O2 ---> P4O10　　B． O2 in P4 + O2 --->

C．CuO in CuO + 2HCl---> CuCl2 + H2O

D．H2 in Zn + 2HC1 ---> ZnCl2 +H2

5．Which of the following is NOT correct?

A．ZnS + HCl ---> ZnCl2 +H2S　　B． P4 + 5O2 ---> P4O10

C．CuO + 2HCl---> CuCl2 + H2O　　D． Zn + 2HCl---> ZnCl2 +H2

6．Matter is made up of 　　　　　　　　 ．

A．substances　　B． reactants and products

C．elements and compounds　　D． equations

7．Which of the following sayings is true?

A．Most elements have only one atom each．

B．Most gases have only one atom each．

C．Almost all elements have two atoms each．

D．Almost all gases or gas elements have two atoms each．

8．What quantities are the same on both sides of a chemical equation?

A．Molecule quantities　　B． Atom quantities．

C．Reactant quantities and product quantities． D． Element quantities．

9．The difference between a compound and an element is that 　　 ．

A．they have different number of atoms each

B．they have different quality of atoms each

C．the element has the same kind of atoms while the compound has not

D．the element is made up of atoms while the compound is not

10．How many molecules of sodium would be required to produce six molecules of hydrogen according to the following equation?

　　2Na + 2H2O ---> 2NaOH + H2

A．6．　　B．8．　　C．10．　　 D．12．

阅读理解

阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。

　　Since we are social beings, the quality of our lives depends in large measure on our inter-personal relationships. One strength of the human condition is our possibility to give and receive support from one another under stressful(有压力的)conditions. Social support makes up of the exchange of resources among people based on their interpersonal ties. Those of us with strong support systems appear better able to deal with major life changes and daily problems. People with strong social ties live longer and have better health than those without such ties. Studies over types of illnesses, from depression to heart disease, show that the presence of social support helps people defend themselves against illness, and the absence of such support makes poor health more likely.

　　Social support cushions stress in a number of ways. First, friends, relatives and co-workers may let us know that they value us. 0ur self-respect is strengthened when we feel accepted by others in spite of our faults and difficulties. Second, other people often provide us with informational support. They help us to define and understand our problems and find solutions to them. Third, we typically find social companionship supportive. Taking part in free-time activities with others helps us to meet our social needs while at the same time distracting(转移注意力)us from our worries and troubles. Finally, other people may give us instrumental supportmoney aid, material resources, and needed servicesthat reduces stress by helping us resolve and deal with our problems.

1．Interpersonal relationships are important because they can

[　　]

A．make people live more easily

B．smooth away daily problems

C．deal with life changes

D．cure types of illnesses

2．The researches show that people's physical and mental health

[　　]

A．lies in the social medical care systems which support them

B．has much to do with the amount of support they get from others

C．depends on their ability to deal with daily worries and troubles

D．is related to their courage for dealing with major life changes

3．Which of the following is closest in meaning to the underlined word“cushions”?

[　　]

4．Helping a sick neighbor with some repair work in spare time is an example of

[　　]

A．instrumental support

B．informational support

C．social companionship

D．the strengthening of self-respect

5．What is the subject discussed in the text?

[　　]

A．Interpersonal relationships.

B．Kinds of social support.

C．Ways to deal with stress.

D．Effects of stressful condition.