The bicycle is one of the simplest yet most useful inventions in the world. What is most surprising is that it was not ___1__ earlier, although the great inventor Leonardo Da Vinci had drawn pictures for bicycles and also for flying machines and some other things. Those things were not produced___2___ long after he died.
　　A person riding a bicycle uses ___3___ energy to make the bicycle move, and there is no pollution at all when you are riding. Even so, in developed ____4___, most people don’t travel to work by bicycle. It is not because the bicycles are expensive or people feel___5____ if they ride to work. It’s because __6___ cars on the roads becomes larger. It certainly becomes ___7___ to ride a bicycle. As a result, more people put their bicycles away and go to work ___8___ their cars , and in this way, the situation is made more serious.___9___ the best way to make riding safer and more popular is to create paths (開設(shè)通道) only for bicycles, and to make ___10___ so difficult and expensive for drivers to take their cars into the city that they will go back to use their bicycles.

Let’s _____ some dumplings for the Spring Festival.

A．making           B．makes            C．make             D．to make

All living things on the earth need other living things to live with. Nothing lives  1 . Sometimes one living thing kills    2  . Each kind of life eats another kind of life     3   live, and together they form a food chain(食物鏈). Some food chains are simple, while others are not. But    4    food chains begin with the sun, and all food chains become    5   if one of the links disappears.

All life needs sunlight to live on. But only plants can use    6   directly(直接地). They make food from sunlight, water, air and so on. Animals can only use the sun’s energy    7    it has been changed into food by plants. Some animals feed directly on plants. Others eat smaller animals. Meat-eating animals are only   8 plants indirectly.

What about human beings? We are members of many food chains. We eat wheat, rice, vegetables, fruits and so on. We also eat meat and drink milk. But   9     often break up the food chains. They kill wild animals. They also make rivers, lakes and seas dirty. When these rivers, lakes and seas are polluted, the fish in them    10   be eaten. If people eat the fish, they will get strange diseases.

Each form of life is linked to all the others. Breaking the links puts all life in danger.

1.                A．a(chǎn)lone          B．lonely          C．together  D．happily

2.                A．other          B．the other       C．a(chǎn)nother  D．the others

3.                A．for            B．so that          C．a(chǎn)nd  D．in order to

4.                A．a(chǎn)ny            B．a(chǎn)ll             C．some D．most

5.                A．better          B．broken         C．stronger  D．nicer

6.                A．moonlight       B．laser light       C．sunlight   D．bright light

7.                A．a(chǎn)fter           B．before         C．until D．by the time

8.                A．making         B．catching        C．eating    D．feeding

9.                A．sunlight        B．a(chǎn)nimals         C．plants    D．people

10.               A．can            B．cannot         C．must  D．needn’t

We can’t put off _________ a plan.

A．making           B．makeing           C．to make           D．make to

If you are a teenage boy and want to succeed in life, you’d better read this great book!

From Boys to Men, by American author, Michael Curian, tells teenage boys that they are living through the  1  years of their life. There is no reason for them not to love life.

You may think that only your body is growing at the moment.  2  the book says your mind is too. The book tells teenage boys that they need to  3  their bodies and minds to grow. To do this, they should stop  4  their time playing computer games and should  5  playing sports.

Sports, the book says, keep you  6  and teach you important life skills. They also teach you  7  to be a leader and work as a part of a team.

The book also tells boys how to love life  8  they are bullied (受欺負(fù)) at school. It says boys should not be afraid of such school bullies (惡霸學(xué)生).

The book says that, to become the man you want to be, you have to believe in  9 _.

Most importantly, the book says, you must always  10  to succeed. Never be happy with what you’ve got and try to achieve more.