What’s a blog? A blog is a personal online diary(日记). It’s cool, it’s hot, and everyone is doing it. People talk about it often. Sound like a fashion? In fact, It’s another trend (流行趋势). And the word “blogger” means a person who writes diaries online. Are you a blogger?　　

Many bloggers are teenagers who log (进入) onto websites to discuss anything in their lives. Many of today’s teenagers are not afraid to openly discuss everything in their lives. Teenagers complain about their parents and homework. They share diaries, post(发布) songs from the latest bands and show pictures of theirs. They write their own poems, say something about their girlfriends or boyfriends and complain to each other or offer support. But mostly they just write down what they do every day.　　

However, many parents are worried about these young bloggers. Parents see the kids talking about how they got drunk last weekend and how they don’t like studying. They are using the language that is surprising to their parents. Besides hearing from their friends, teen bloggers also get messages from strangers. Most of the time, it’s older men asking to meet teenage girls. “These strange men are dangerous for my kids. They sometimes teach my kids bad words.” said Cara Cabral, a mother of two children.　　

Many teenagers and young adults know it’s not safe to use blogs on the Internet. They know they are putting information about themselves in a place where it can be seen by anyone. But teenagers are unwilling to give up these new communication tools that have become a way of life for many of them. 　　

1. The underlined word “it” in the first paragraph means ________.　　

A. the fashion          B. the Internet       C. the blog    　　

2. Which of the following is NOT TRUE？　　

A. Teenagers don’t tell about their personal life in their blogs.　　

B. Teenagers mostly write down what they do every day in their blogs.　　

C. Teenagers complain about their parents and homework in their blogs.　　

3. What’s the main idea of the third paragraph?　　

A. Many parents don’t understand kids’ language in their blogs.　　

B. Many parents are worried about these young bloggers. 　　

C. Many parents can understand why their kids don’t like studying.　　

4. Many parents think it’s         for their children to get messages from strangers.　　

A. dangerous     B. interesting        C. surprising 　　

5. We can learn from the last paragraph that         .　　

A. It’s easy for many teenagers to give up blogging on the Internet                 　　

B. It’s safe for many teenagers to put their personal information on the Internet　　

C. It’s popular for many teenagers to use blogs on the Internet　

 Laboratory　work　is　your　chance　to　learn　science　firsthand.　It　can　be　fun　but　you　must　be　careful　to　prevent　injury.　Listen　closely　when　your　teacher　reads　and　explains　the　rules　before　your　first　lab　lesson.

    LABORATORYRULES

    Throughout　the　lesson

    ·Do　not　enter　the　science　lab　without　the　teacher’s　permission.·No　food　or　drinks　are　to　be　alowed　in　the　science　lab.

    Before　the　Experiment

    ·Read　al　instructions　carefuly　before　every　experiment.

    ·Prepare　al　apparatus（仪器）and　arrange　them　so　that　you　wil　not　knock　them　over　while　doing　the　experiment.

    During　the　Experiment

    ·If　you　are　unsure　of　how　to　use　any　apparatus　or　how　to　operate,　ask　your　teacher　for　help.·Never　smel　or　taste　chemicals　unless　your　teacher　gives　permission.

    After　the　Experiment

    ·Wash　al　apparatus　after　use　and　return　them　to　the　places　where　they　were.

    ·Throw　waste　materials　in　proper　waste　baskets.　　　　First　Aid　　　　

    ·Report　al　accidents　to　your　teacher　immediately.

    ·If　you　spil（ 溅 出 ）any　chemicals　onto　your　body　or　clothing,　wash　with　plenty　of　water　and　report　to　your　teacher.

   1.　Your　teacher　wil　probably　tel　you　the　rules　above　_____　the　first　lab　lesson.

    A.　before　　　　　B.　since　　　　C.　during　　　　D.　after

2.　Before　every　experiment,　you　should　_____.

    A.　taste　the　chemicals　first

    B.　clean　al　the　apparatus

    C.　read　al　instructions　carefuly

    D.　report　al　the　accidents　to　the　teacher

  3.　When　you　are　not　sure　how　to　use　al　apparatus,　_____.

    A.　try　them　on　your　own

    B.　read　the　rules　carefuly

    C.　ask　your　teacher　for　help

    d.　put　them　back

 4.　It　is　clear　that　you　can　_____.

    A.　 bring　food　into　the　lab

    B.　enter　the　lab　anytime

    C.　smel　chemicals　as　you　like

    D.　learn　science　directly　in　the　lab

    5.　If　you　get　chemicals　on　the　clothing,　you　can　find　ways　to　solve　it　in　the　part　_____.

    A.　Before　the　Experiment

    B.　First　Aid

    C.　During　the　Experiment

    D.　After　the　Experiment

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.

Basketball is still a young game. It's over a hundred years old. In the winter of 1891, a certain college was having some trouble with its boy students. The weather was bad and the students had to stay indoors. As they couldn't play outdoors, they were unhappy, and some even got into fights from time to time.

　　Some of the teachers, at the college asked Dr. Naismith to invent a game so that the students might have something to play with. It was not easy to invent such a game because it had to be played indoors , and the court (球场) was not very large.

　　Dr. Naismith thought for a few days and invented a kind of ball game. It was a fast, wonderful game with much moving and passing of the ball. It was played between two teams. To make a score , the ball had to be thrown into the basket ten feet(英尺) above the floor on the wall . At each end of the court there was such a basket. At first, Dr. Naismith wanted to throw the ball into a box. As he could not find boxes of the right size, he had to use fruit baskets instead. That is how the game got its name.

1. How long is it since basketball was invented?

　　A. 1000 years                      　　　　　　　　　　B. More than 100 years

　　C. 1100 years                       　　　　　　　　　　D. Less than 100 years

2. The students felt unhappy because _______.

　　A. they had much homework to do

　　B. they often got into fights

　　C. they couldn't play outdoors 

　　D. they had little time to study

3. Who asked Dr. Naismith to invent a game?

　　A. Some students                    　　　　　　　　B. Some teachers

　　C. Some students' parents           　　　 D. Some of his friends

4. When a student ______ , he makes a score.

　　A. receives the ball.               　　　　　　

　　B. throws the ball to another student

　　C. runs quickly with the ball in his hand  

　　D. throws the ball into the basket

5. Which sentence is right?

　　A. Dr. Naismith had to use fruit to throw the ball.

　　B. It was easy to invent the game.

　　C. The students could go outdoors when the weather was bad.

　　D. The ball had to be thrown into the basket five feet above the floor.

The world is not hungry，but it’s thirsty.   1  while we say we are short of water.Why？Because about 97% of water on the earth is sea water which we can‘t drink or use for watering plants directly.Man can only drink and use the 3% of water that comes from rivers and lakes.   2  ，because some of it has been polluted.
　　Now more water is needed.The problem is how we can avoid a serious water shortage in the future.  3 Scientists are making study in this field.Today，In most large cities water is used only once and then runs to the sea or rivers.but it can be used again.Even if every large city reused its water，the water will still not be enough. 4 .
　　The sea seems to give us the best answer.There is a lot of water in the sea.All that needs to be get the salt out of the sea water.This will be expensive，but it has already been used in many parts of the world.   6 So you see，if we can find out a way，we’ll be in no danger of drying up.
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