There are forty-seven different kinds of kangaroos（袋鼠）. The smallest kangaroos are about a quarter of a meter long; the biggest are taller than a man.

　Kangaroos have very long strong back legs. These are used for jumping. They also have long strong tails（尾巴）used for resting on. Kangaroos’ front legs are much shorter, and are almost(几乎) like arms. Kangaroos’ heads are quite small, but their ears are quite large.

　Mother kangaroos have a pocket at the front. They have one baby each year. When it is born, the baby kangaroo is straight(直接) into its mother’s pocket. The baby kangaroos stay there for six months.

　The biggest kangaroos stand more than 2 meters tall, and their legs are so strong that they can jump more than 9 meters. They are very fast, and can travel at more than 50 kilometers an hour. They are very strong, but only eat fruit, leaves and grass.

1.How many different kinds of kangaroos are there?

A.37.??? ????????????? ????????????? ????????????? B.74.??? ????????????? ????????????? C.47.? ? ????????????? ????????????? ????????????? D.40.

2.How large are the biggest kangaroos?

A. Smaller than a man.???????????? ????????????? B. Bigger than a man.

C. The same size as a man.????????? ????????????? D.A quarter of a meter long.

3..Does a mother kangaroo have a pocket?

A. Yes,? it does.??? B. No,? it does.?? C. No, it doesn’t.????????????? D. It doesn’t tell us.

4.How long does a baby kangaroo stay in its mother’s pocket?

A. One month.??? ????????????? B. Three months.?? C. Six months.??? D. Five months.

5..How far can kangaroos jump?

A. More than 2 meters. B. More than 9 meters.

C. Less than 2 meters. ? D. Less than 9 meters.

阅读短文，根据短文内容，从短文后的六个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。（共8分，每小题2分）
　　As you grow rapidly through your teenage years, you will experience a lot of changes. The changes may seem difficult. 　1　 　Don’t panic! You will deal successfully with them! You are a young adult now!
　　With more responsibility, you will find more freedom to make your own choices. This is a time to be well informed about making choices. In this way you can make healthy balanced decisions. 　2　 　You may already know your career path or you may have no idea at all what you want to do. Both situations are fine! Work hard and the right opportunity will present itself to you.
　　Young adulthood means greater freedom and more choices. 　3　 　But try not to shut your family out of your life. You should learn to think of others even though you are old enough to look after yourself.
　　It is also perfectly natural at this time for you to spend more time with your friends than your family. Choose your friends wisely. A true friend will stand by you no matter what happens.
　　This period is a part of the life cycle. There are some people who will be with you throughout life’s journey. There will be some people with whom you part and go separate ways. Leaving school can be hard. The reality is that you may not even see all of your classmates again.
　　You are a young adult. It is your life. No one can live it for you. 　4　 　So making the right choices will be important to you. Life is for living. Enjoy your life wisely.