6、若关于的方程恒有实数解，则实数m的取值范围是　　 (　 　　)

A. ［0,8］　　　　　　　　　 B.［1,8］　　　　　　　

C. ［0,5］　　　　　　　　 D. ［1，+∞)

4．已知等差数列{a_n}满足，，则它的前10项的和= ( 　　　)

　 　A．95　　 B．135　　 C．138　　 D．23

3．“a>0”是“方程至少有一个负数根”的 ( 　)　　　

A．充分必要条件　　　 B．必要不充分条件

C．充分不必要条件　　 D．既不充分也不必要条件

2．若复数，且为纯虚数，则实数为 (　　　 )

　 A．1　　 B．-1　　 C．1或-1　　 D．0

一项是符合题目要求的)

1．已知全集U=R，集合A=，B=，那么集合A∩B等于 ( 　　　)

　

A．

B．

C．

D．

3. 文体的选择：文章的选择以说明、议论、夹叙夹议等为主，单纯以时间或事件为线索的记叙文不宜于考察逻辑思维能力，出现机率不大。

[练习]

(1)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

_71_ One of the best things you can possibly do is to start you own club. It’s great fun especially if you are the sort of person who feels there’s never anything to do during the school holidays.

The first thing you need to come up with is an idea for your club. _72_ Pets, clothes, pop music or dancing groups, sports, making things? The list is endless.

Next you need some friends to be in your club with you. _73_ All you need is three or four other people who are interested in the same thing as you.

_74 You should all sit down somewhere together with lots of pieces of paper and write down every name you can think up. That’ll keep you busy for ages.

At your first meeting you should make up a rule book. And the first rule should be no grown-ups or little/big brothers or sisters! The best clubs are always secret!

Now you have just about everything you need, except membership cards. These are very important and again you can speed a lot of time making them. 75 Why not leave some space for a photo of yourself? That will make the membership card really look like it.

So there you are, get clubbing! Once you get started you’ll think of loads of more interesting things to do!

A. That’s easy.

B. Enjoy your own club!

C. Invite a designer to join you.

D. What are you interest in?

E. Some vacation is just around the corner.

F. Then you need to pick a name for your club.

G. Use a bright thick pen to make a special design.

(2)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中的两项为多途选项。

Are you truly happy? Do you ever know what it means to be happy and what it takes to achieve happiness? __71___. The following are a few tips that I follow to create happiness in my life.

※ Make a plan for attaining goals that you believe will make you happy. Your moods will very likely increase if you are going after something you value.

※Surround yourself with happy people. It is easy to begin to think negatively when you are surrounded by people who think that way. ___72___.

※When something goes wrong, try to figure out a solution instead of being absorbed in self pity. Truly happy people don’t allow setbacks to affect their mood because they know that with a little thought they can turn the circumstances back to their favor.

※__73_. These few minutes will give you the opportunity to focus on the positive things in your life and will lead you to continuous happiness.

※　 74 　. Whether you treat yourself to lunch, take a long, relaxing bath or simply spend a few extra minutes on your appearance, you will be subconsciously (下意识地) putting yourself in a better mood.

※Finding the humor in situations can also lead to happiness. Find a way to make light of a situation that would otherwise make you happy.

※Keeping healthy is another way to achieve happiness.　 75　 .

A．What makes one person happy may be very different from what makes someone else happy.

B．On the contrary, if you are around people who are happy, their emotional state will be infectious.

C．Being overweight or not eating nutritious foods can have a negative effect on your mooD．

D．These are important questions for anyone who is seeking happiness to ask themselves.

E．Spend a few minutes each day thinking about the things that make you happy.

F．There are some tips in life that lead to happiness.

G．It’s also important to take some time each day to do something nice for yourself.

(3)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

__71___ .Being angry doesn’t really solve much, but what people do when they feel angry is important. The goal is to calm down and try to solve what is bothering you. This is hard for some kids and adults, too. Instead of calming down, some kids might keep getting more and more upset until they explode like a volcano!

__72___ .Their anger might be so strong that they lose control of their temper. They may act in ways unacceptable and hurtful. People may say that someone has trouble controlling their temper.__73___

Some kids might get so angry that they scream at their parents, break something , or even worse , hit their brothers or sisters._74____ .However, it’s not OK for a kid to do any of those things .Kids don’t want to act in this way , but sometimes　　 angry feelings can be hard to manage. So what to do?

Well, the good news is that kids don’t just have to keep making the same mistakes over and over again.__75___ .Imagine your temper as a puppy inside you that needs some training. The puppy is not bad ---- it will probably turn out a great dog. It just needs to learn some rules because, right now, that puppy is causing some problems to you.

A. You can train you temper.

B.You don’t want to cause trouble.

C. Kids should be allowed to express their feelings, even angry ones.

D. Everybody gets angry sometimes.

E. In fact, they usually mean that a kid behaves badly when feeling angry.

F. Instead of thinking of the person you’re angry with, think of something else.

G. Some kids get angry more often or more easily than some other kids.

(4)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余项。

Choosing the right job is probably one of the most important decisions we have to make in life, and it is frequently one of the hardest decisions we have to make. One important question that you might ask yourself is: “How do I get a good job?”___71___.

There are people who can answer an insignificant advertisement in the local paper and land the best job in the world; others write to all sorts of places all over the country, and never seem to get a reply at all. Still others believe that the in person, door-to-door approach is by far the best way to get a job; and then there are those who, through no active decision of their own, just seem to be in the right place at the right time. ___72____. He used to spend a lot of his free time down by the sea watching the tall ships, but never thinking that he might one day sail one of them. His father was a farmer, and being a sailor could never be anything for the boy but an idle dream. One day, on his usual wandering, he heard the captain of the ship complaining that he could not sail because one member of his crew was sick. Without stopping to think, the lad(少年) offered to take his place. ___73___.

__74__. If the lad had gone home to ponder(考虑)his decision for a week, he may have missed his chance. It is one thing to be offered an opportunity; it is another thing to take it and use it well.

Sometimes we hear stories about people who break all the rules and still seem to land plum jobs(美差). When you go for a job interview or fill out an application, you are expected to say nice things about the company to which you are applying. ___75___. And within a year this person had become general manger of the company.

A．This story also illustrates the importance of seizing an opportunity when it presents itself.

B．People find jobs in an infinite number of ways.

C．it’s almost impossible to find a good job by answering advertisement in newspapers

D．Take for example the young man who wanted to be a sailor.

E．But there was one person who landed an excellent job by telling the interviewer all the company’s faults.

F．He spent the rest of his life happily sailing the ships he had always loved.

G．It is very important to seize an opportunity when it presents itself.

(5)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

_71_ One of the best things you can possibly do is to start you own club. It’s great fun especially if you are the sort of person who feels there’s never anything to do during the school holidays.

The first thing you need to come up with is an idea for your club. _72_ Pets, clothes, pop music or dancing groups, sports, making things? The list is endless.

Next you need some friends to be in your club with you. _73_ All you need is three or four other people who are interested in the same thing as you.

_74　 　You should all sit down somewhere together with lots of pieces of paper and write down every name you can think up. That’ll keep you busy for ages.

At your first meeting you should make up a rule book. And the first rule should be no grown-ups or little/big brothers or sisters! The best clubs are always secret!

Now you have just about everything you need, except membership cards. These are very important and again you can speed a lot of time making them. 75 Why not leave some space for a photo of yourself? That will make the membership card really look like it.

So there you are, get clubbing! Once you get started you’ll think of loads of more interesting things to do!

A．That’s easy.

B．Enjoy your own club!

C．Invite a designer to join you.

D．What are you interest in?

E．Some vacation is just around the corner.

F．Then you need to pick a name for your club.

G．Use a bright thick pen to make a special design.

(6)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Before going outside in the morning, many of us check a window thermometer(温度计)for the temperature. This helps us decide what to wear. _______71______ . We want our food to be a certain coldness in the refrigerator. We want it a certain hotness in the oven. If we don’t feel well, we use a thermometer to see if we have a fever. We keep our rooms a certain warmth in the winter and a certain coolness in the summer.

Not all the thermometers use the same system to measure temperature. We use a system called the Fahrenheit scale. But most other countries use the Centigrade scale.

Both systems use the freezing and boiling points of water as their guide._____72_______ .

The most common kind of thermometer is made with mercury(水银)inside a clear glass tube. As mercury (or any other liquid ) becomes hot, it expands. As it gets colder, it contracts(收缩). That is why on hot days the mercury line is high in the glass tube.______73______.

First. Take a clear glass juice bottle that has a cap; fill the bottle with coloured water. Tap a hole in the center of the cap using a hammer and thick nail. Put the cap on the jar. Then stick a plastic straw(吸管) through the nail hole.

_______74____________.

Finally. Place a white card on the outside of the bottle and behind the straw. Now you can see the water lever easily.

_______75___________.

As the temperature goes down, the water will contract, and the lever in the straw will come down. Perhaps you will want to keep a record of the water lever in the straw each morning for a week.

A. We use and depend on thermometers to measure the temperature of many other things in our daily lives.

B. Thermometers measure temperature, by using materials that change in the same way when they are heated or cooled.

C. Now that you know this rule you can make a thermometer of your own that will work.

D. The water will rise in the straw. As the temperature of the air goes up, the water will expand and rise even higher.

E. They label these in different ways. On the Fahrenheit scale water freezes at 32 degrees and boils at 212 degrees. On the Celsius scale water freezes at 0 degrees and boils at 100degrees.

F. Take wax (you may use an old candle if you have one) and melt some of it right where the straw is struck into the cap to seal(把..粘住) them together.

G. People use thermometers which are made by themselves when travelling around the world.

(7)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Choosing the right job is probably one of the most important decisions we have to make in life, and it is frequently one of the hardest decisions we have to make. One important question that you might ask yourself is: “How do I get a good job?”___71___.

There are people who can answer an insignificant advertisement in the local paper and land the best job in the world; others write to all sorts of places all over the country, and never seem to get a reply at all. Still others believe that the in person, door-to-door approach is by far the best way to get a job; and then there are those who, through no active decision of their own, just seem to be in the right place at the right time. ___72____.He used to spend a lot of his free time down by the sea watching the tall ships, but never thinking that he might one day sail one of them. His father was a farmer, and being a sailor could never be anything for the boy but an idle dream. One day, on his usual wandering, he heard the captain of the ship complaining that he could not sail because one member of his crew was sick. Without stopping to think, the lad(少年)offered to take his place. ___73___.

__74__.If the lad had gone home to ponder(考虑) his decision for a week, he may have missed his chance. It is one thing to be offered an opportunity; it is another thing to take it and use it well.

Sometimes we hear stories about people who break all the rules and still seem to land plum jobs(美差). When you go for a job interview or fill out an application, you are expected to say nice things about the company to which you are applying. ___75___.And within a year this person had become general manger of the company.

A. This story also illustrates the importance of seizing an opportunity when it presents itself.

B. People find jobs in an infinite number of ways.

C. it’s almost impossible to find a good job by answering advertisement in newspapers

D. Take for example the young man who wanted to be a sailor.

E. But there was one person who landed an excellent job by telling the interviewer all the company’s faults.

F. He spent the rest of his life happily sailing the ships he had always loved.

G. It is very important to seize an opportunity when it presents itself.

(8)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

What is your favourite colour? Do you like yellow, orange, red? ___71___. Do you prefer greys and blues? Then you are probably quiet, shy, and you would rather follow than lead. You tend to be pessimist. At least, this is what psychologists tell us, and they should know, because they have been seriously studying the meaning of colour preference, as well as the effect that colours have on human beings. ___72___ . If you happen to love brown, you did so, as soon as you opened your eyes, or at least as soon as you could see clearly.

___73___. A yellow room makes most people feel more cheerful and more relaxed than a dark green one; and a red dress brings warmth and cheer to the saddest winter day. ___74___ . A black bridge over the Thames River, near London, used to be the scene of more suicides(自杀) than any other bridge in the area---until it was repainted green. The number of suicide attempts immediately fell sharply. Perhaps it would have fallen even more if the bridge had been done in pink or baby blue.

___75___. It is an established fact that factory workers work better, harder, and have fewer accidents when their machines are painted orange rather than black or grey.

A. On the other hand, black is depressing.

B. They tell us, among other facts, that we do not choose our favourite colour as grow up --- we are born with our preference.

C. The rooms are painted in different colours as you like.

D. If you do, you must be an optimist, a leader, an active person who enjoys life, people and excitement.

E. Light and bright colours make people not only happier but more active.

F. Life is like a picture or a poem, full of different colours.

G. Colours do influence our moods---there is no doubt about it