Biodiversity(生物多样性), or biological diversity, is a wide-ranging concept that covers all the different kinds of plant and animal species present on earth. Environmentalists believe that many millions of species exist. As all these living organisms are dependent on each other in some way, biodiversity is desirable. Any loss to the planet is actually a loss for mankind as well, and it is our responsibility to try and save Earth’s biodiversity.
Biodiversity has a vital role to play in the evolution（演变）of species. Species become extinct, but new species evolve, and this is how a balance is maintained. This may sound pretty simple, but it takes millions of years for changes to take place.
Biodiversity is also very important to the stability of food webs. Damage to them can mean disaster for an entire ecosystem. The extinction of a single animal species can put huge pressure on the numerous other species dependent on it.
Biodiversity also has an important role to play in human society. Apart from being the most intelligent species on earth, human beings are also the most dependent. We depend on nature to meet our basic needs. When we change the balance of nature to create our cities and bring about our technical advances, we knowing or unknowing cause great damage to the ecosystem. This must be understood, and the damages must be reversed（颠倒）in any way they can to ensure that the balance of the ecosystem is maintained.
【小题1】We learn from the first paragraph that_________.
A biodiversity can be seen
B all living species are found on earth.
C people everywhere are aware of the importance of biodiversity
D the loss of any species can affect humans
【小题2】Why can change in food webs lead to disaster?
A Because it can make people suffer from disease
B Because it can put huge pressure on some species
C Because it takes a long time for such changes to take place
D Because it will damage ninety-nine percent of species
【小题3】What does the underlined word probably mean?
A Immovability  B Peace  C Strength  D Variety
【小题4】We learn from the last paragraph that __________.
A humans are as independent as they are intelligent
B the balance of the ecosystem is easily maintained
C nature has given us a lot
D nature is taking revenge on us
【小题5】Which of the following may be the best title for this passage?
A Food Webs are Closely Related to Biodiversity.
B Biodiversity Plays a Very Important Role in Evolution
C How Biodiversity Affects Human Society.
D Understanding Biodiversity and Its Importance.

先通读下面的短文，然后根据短文内容和所给首字母，在空格内填入一个适当的单词，使短文意思完整。所填单词必须在答题卷上完整写出。

DIY, which means Do It Yourself, is quite popular in the UK. Lots of stores and supermarkets sell DIY things. TV programs show people how to DIY.

English people like DIY. If there is anything that needs fixing (修理) around their homes, such as            p  1.    the walls or putting in a new shower, they will do the jobs themselves. They share DIY e  2.    with their friends. More and more people are fond of DIY and have d  3.   the joy of DIY. Sometimes people also DIY for saving money. At present, many people can’t a  4.   a big house. They are looking at how they can make their houses better without spending a lot of money. It is not surprising that DIY is so popular.

DIY can be difficult. There is a large market for DIY furniture (家具) which needs to be got together by people themselves w  5.    a few tools. However, people often find it not easy to build a piece of furniture because they can’t understand the instructions (指令). Sometimes the instructions are simple and clear, but the furniture i  6.   is difficult to build. DIY can also be dangerous if you are not careful enough. It is r  7.    that in just one year over 230,000 people were hurt while doing DIY in the UK, including 41,000 who fell off ladders.

DIY can bring us a lot of f  8.    and can help us save some money, but it is not always as easy as it is t  9.   to be if we do something that is too hard. Maybe factories should make products that are easier and s  10.    for us to DIY.

 

DIY, which means Do It Yourself, is quite popular in UK. Lots of stores and supermarkets sell DIY things. TV programs show people how to DIY.
English people like DIY. There is a saying in UK---“An Englishman’s home is his castle”. Huge numbers of people spend their holidays making their homes beautiful “castles”. If there is anything that needs fixing around their houses, such as painting the walls or putting in a new shower, they will do the jobs themselves. They share DIY experiences with their friends. More and more people have discovered the joy of DIY. Sometimes people also DIY for saving money. With the economic downturn at present, many people can not afford to buy a bigger house. They are looking at how they can make their houses better without spending a lot of money. It is not surprising that DIY is so popular.
DIY can be difficult. There is a huge market for DIY furniture which people need to put together themselves with a few basic(基本的) tools (工具). However, people often find it not easy to build a piece of furniture because they can’t understand the instructions. Sometimes the instructions are simple and clear, but the furniture itself is difficult to build. One thing is for sure, though most DIY projects are started with the best intentions (目的，意图), many of them may not get finished. DIY can also be dangerous. For example, anything electrical should be done by a professional worker. Unluckily, many people don’t care about this warning and put themselves in danger. It is reported that in just one year over 230 000 people were hurt while doing DIY in UK, including 41 000 who fell off ladders (梯子).
Therefore, DIY can bring us fun and help us save money, but it is not always as easy as it is thought to be if we bite off more than we can chew. Maybe factories should make products that are easier and safer for us to DIY.
【小题1】How do many English people spend their holidays according to the passage ?

A．Making their homes beautiful.	B．Visiting their friends.
C．Traveling all over the world.	D．Making a lot of money.

【小题2】Why do English people like DIY ?

A．Many stores sell DIY things.	B．DIY can bring them fun.
C．TV programs teach them to DIY.	D．All DIY projects are easy.

【小题3】What can we learn from the passage ?

A．DIY is a waste of money.

B．It is always difficult to DIY.

C．We should be careful while doing DIY.

D．It’s very safe to DIY.

【小题4】In the passage, “we bite off more than we can chew.” probably means___________

A．we can eat everything we like.

B．we should do something difficult.

C．we do something that is too difficult.

D．we eat too much food that is not safe.

Most people want to be happy, but few know how to find happiness. Money and success alone do not bring lasting happiness. Aristotle, a Greek thinker, said, “Happiness depends upon ourselves.” In other words, we make our own happiness. Here are a few suggestions to help you be happier.
The first secret of happiness is to enjoy the simple things in life. Too often, we spend so much time thinking about the future —for example, getting into college or getting a good job —that we fail to enjoy the present. You should enjoy life’s simple pleasures, such as reading a good book, listening to your favorite music, or spending time with close friends. People who have several close friends often live happier and healthier lives.
Another secret to living a happy life is to be active, and have hobbies where you forget your problems and time. Many people experience this dancing, or playing a sport, such as swimming. You can forget about your problems, and only think about the activity. Finally, many people find happiness in helping others. Studies show that people feel good when they spend their time helping others. If you want to feel happier, do good things for someone. You can help a friend with his or her studies, go shopping to buy food for an elderly person, or simply help out around the house by washing the dishes.
【小题1】 The best title（标题）of the passage is ________.

A．Money Makes You Happy	B．The Secrets of Happiness
C．Ideas for Helping Other People to Be Happy	D．Good Friends Make You Happy

【小题2】The second paragraph tells us that ________.

A．the more friends you have, the happier you will be

B．we shouldn’t think about our future

C．happiness is to enjoy the simple things in life.

D．some people fail to live a happy life

【小题3】The passage gives us ________ pieces of advice on happiness.

A．one

B．two

C．three

D．four

【小题4】The writer thinks that ________.

A．everyone knows how to live a happier life

B．it’s wrong to spend time on work

C．hobbies take up too much time

D．doing good things for someone can make you happier

【小题5】Which of the following is not mentioned in the passage?

A．Reading a good book.	B．Traveling to a foreign country.
C．Playing a sport.	D．Spending time with close friends.