It is easy for us to tell who our family members are, but do plants recognize(识别) their own family? Some do, scientists say, according to a report by Science News in early 2010.

Guillermo P. Murphy and Susan Dudley are two plant scientists from McMaster University in Hamilton, Canada. They did a few experiments with Jewelweeds, a kind of flower that grows in wet, shady spots. They found that the flowers seem to know their own flower family. In their experiments, Murphy and Dudley planted jewelweeds in pots with either siblings or strangers.

When jewelweeds were planted in pots with strangers, the plants started to grow more leaves than if they had been planted alone. This response(反应)suggests that plants are competing with strangers for sunlight, since a plant with more leaves can receive more light and make more food. Jewelweeds usually grow in the shade, where sunlight is not enough.

When jewelweed seedlings(幼苗)were planted with siblings, they grew a few more branches than they usually would if they were alone – but they did not start growing lots of extra leaves. This behavior suggests the plants are more likely to share resources, rather than compete.

According to the Science News report, Jewelweeds are not the first plants that plant scientists have studied for family recognition. In 2007, Dudley and her team studied the Great Lakes sea rocket, a plant that grows on the beach – where it may be hard to get fresh water. In that experiment, the scientists found that when sea rockets were planted with siblings, they tolerated each other. But when they were planted with strangers, the sea rockets reacted by working extra hard to grow lots of roots.

Dudley says this just because sea rockets, on the beach, get plenty of sun but struggle for water – so when they’re threatened, they compete for water. Jewelweeds have plenty of water but have to compete for sunshine, so they grow more leaves.

1. What does the underlined word siblings mean?

A．Flowers come from foreign countries.

B．Plants growing in different environments.

C．Flowers planted with lots of strangers.

D．Plants that are the same kind.

2. In the text, the writer mentioned the experiments of Jewelweeds to         .

A．make a comparison                      B．introduce a topic

C．describe a pretty flower                  D．build a new theory

3. According to the passage, flowers planted alone will         .

A．grow more leaves than those planted in groups

B．become taller than those with more branches

C．grow fewer leaves than those planted with strangers

D．become ill easily because they can’t get enough shade

4. What can be the best title for the passage?

A．New Discoveries about Plants

B．How Plants Compete with Each Other

C．Family Recognition among Plants

D．Jewelweeds and the Great Lakes Sea Rockets

根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，并将答案标号填写在本题下面相应题号后的横线上。选项中有两项多余选项。
—Now, tell me about the man who stole your neighbor’s car. What did he look like?
—Well, sir. He was tall…
—     1    
—Oh yes, and he was younger than you — only about thirty, I’d say.
—Well! And what color was his hair?
—It was brown, and short… it was similar to yours, actually.
—      2    
—No, He was clean-shaven.
—OK. Now have a look at these photos — can you see him?
—     3    
—But that’s Frankie Famham — he’s got a beard, and he’s very short!
—Hm, well…
—    4    
—Yes, the strangest thing was that he appeared to be a gentleman — he was wearing a suit… not like a thief at all.
—Hm, like this photo?
—Yes, that’s him!
—That’s Bill Mahony: he’s in prison! Are you sure you saw the thief?
—     5    

请根据所给句子的内容，从下面的方框中选出适当的词，并用其正确的形式填在答题卡相应的横线上。每空一词，每词限用一次。

1. Betty ______ now much taller than she was last year.

2.After a long walk, the little boy got tired and fell ______ soon.

3.The boy is too young to look after ______.

4.I think the computer is one of the most important ______ in the world.

5.The weather report says it will be cloudy in some ______ cities in the coming days.

6.—Hi, Jack! What’s wrong with Peter?

  —He fell off his bike yesterday. Luckily, he was not ______ hurt.

7.My students find English ______ to learn and they like it very much.

8.Kate ______ a beautiful dress at her 18th birthday party yesterday.

9.—These tables are very nice. Which one would you like, madam?

  —I’d like that brown one. It uses the ______ space.

10.We will arrive at that small village in about one and a half ______ time.

1 

Dogs are very popular pets all over the world.  Some people keep dogs because the dogs help them.  These dogs may __21___someone’s house.  They can also help a __22___ man by leading him to places __23__ he needs to go.  Other people keep dogs as pets __24___ they like dogs.  Almost 33 percent of the homes in the USA and England have dogs, and these dogs come in __25____ kinds of shapes and sizes.

By all accounts, the largest dog in the world is a dog named Zorba.  This dog is a mastiff that lives in London, England.  When it was 7 years old in 1989, it was 92.5 centimeters tall.  In __26___ words, it was more than half as tall as an adult man.  Some Great Danes can grow taller than 98 centimeters, but they do not grow as large as Zorba.  At its __27___ ,Zorba weighed more than a heavyweight boxer at 156 kg.

However, the __28__ dog was a Yorkshire terrier from England.  This dog was only the __29__ of a matchbox measuring 5 centimeters tall and, at most, 8 centimeters from nose to __30__.

1.A. help          B. make          C. protect         D. build

2.A. deaf          B. blind          C. disable         D. poor

3.A. that          B. which          C. where         D. who

4. A. for           B. so             C. because        D. as if

5.A. large          B. wide          C. deep           D. different

6.A. other         B. another         C. some          D. else

7.A. large         B. larger           C. largest        D. the largest

8.A. largest        B. smallest        C. least          D. most

9.A. height        B. weight          C. size          D. big

10.A. top          B. bottom          C. back          D. tail

Your junior high school years are coming to an end. After the big exam, most of you will go on to study in a senior school. What are you expecting from senior high school? Let’s hear some teen readers talk about it.
Zhou Zhijie, 15, from Shanghai:
I have heard that although Senior 3 is a hard year, Senior 1 and Senior 2 are less stressful. I hope there’ll be time then to enjoy sports. There will be plenty to see. Especially, the World Cup in Brazil is coming. We can watch football matches. I’m sure I’ll really enjoy it.
Jin Xi, 16, from Harbin, Heilongjiang:
I really enjoy science. I visit many science exhibitions. I am interested in UFOs, too. I’m crazy about making model planes, although I’m not very good at it because I don’t really have enough scientific knowledge. I’ll be learning more science in senior high school. In a word, sometime in the future I’m going to build an excellent model plane!
Wang Yaling, 15, from Xiamen, Fujian:
I hope I can be taller in senior high school. I’m only 155cm. Many people grow faster in senior and I hope I will, too. I want to be 162cm. But I’m not sure about that, since most girls in my family don’t grow taller than 160cm. I hope I’m different.
Zhang Fang, 15, from Hebi, Henan:
I expect that I’ll make more friends in senior high school. I study in a middle school in the country. Most of my classmates live nearby. In senior high school, I’ll meet different people from different areas. I hope I can learn new things from them.
根据材料内容选择最佳答案，并将其标号填涂在答题卡的相应位置。
【小题1】It seems that ______ has a special interest in sports.