Penguins are lovely animals. Most people like them. But now as many as 10 of the 17 kinds of penguins are in danger of disappearing. The number of penguins has decreased by ( 减少了) 30% since 1987.

Penguins are black and white birds that live in the southern part of the world. They are common in the Antarctic Continent (南极大陆) ,New Zealand, Australia and South America. Many live near cold waters (水域). But some live near warm waters in Galapagos Islands. Penguins  cannot fly, but  they are fine swimmers. The shape of their body helps them to survive. Penguins eat fish and krill  (磷虾). They have short wings that help them to dive up to 900 feet to catch larger fish. They can swim 10-15 kilometers an hour which lets them protect themselves. They also have lots of body oil that helps in keeping them dry in the water.

The warming of the earth is the reason for the decrease in the number of penguins. The hotter and hotter air has caused ocean waters to become warmer. Higher water temperature has decreased the fish and krill. Some years later these birds are completely unable to reproduce. And many adult penguins die of hunger.

Too much fishing, exploration for oil and oil leaks (泄漏) also make penguins be in danger. Poisonous things in ocean waters are another danger. Penguins also have their enemies, including sharks, seals and sea lions.

1.Penguins can do the following except________.

2.Which of the following is NOT the reason for the decrease in the number penguins?

3.What does the underlined word "reproduce" mean?

4. What's the passage mainly about?

When July comes, children know they’ll have their examinations and the school year will __36__ soon.

Boys and girls will have nearly a two-month holiday, and they’ll leave school __37__train or by car to __38__ their parents.

The summer holidays are the __39__ time of the year for most children. The weather is usually good, so children can spend most of their time __40__ outside. If one lives in the countryside, he can go and play in the woods or in the fields. If he __41__ in a big town, he can usually go to the park to play.

The best place for children to spend their summer holidays is the __42__. Some children are lucky enough to live near the sea. __43__ for those who do not live there, if they have the luck to stay in one of the big seaside towns for a week or two, they’ll __44__ it all the following school year.

Now, __45__ makes children like the seaside so much? I think they are the sand, the sea and the sun. The feelings of the sand under their feet, salt water on their skin, and the warm sun on

1.A. arrive       B. start       C. begin       D. end

2.A. on         B. by         C. in          D. at

3. A. love        B. see        C. watch       D. return

4.A. best        B. better      C. worst        D. worse

5.A. missing     B. working     C. playing     D. studying

6. A. works      B. walks      C. lives        D. arrives

7. A. village      B. seaside     C. city        D. park

8. A . But        B. unless      C. Or         D. And

9.A. hear from   B. speak to    C. agree with   D. talk about

10.A . that        B. which      C. who        D. what

Skin-diving(潜泳) is a new sport today. This sport take you into a wonderful new world. It is like a visit to the moon! When you are under water, it is easy for you to climb big rocks, because you are on longer heavy.

Here, under water, everything is blue and green. During the day, there is plenty of light. When fish swims nearby, you can catch them with your hands.

When you have tanks(罐) of air on your back, you can stay in deep water for a long time. But you must be careful when you dive in deep water.

To catch fish is one of the most interesting parts of this sport. Besides, there are more uses for Skin-diving. You can clean ships without taking them out of the water. You can get many things from the deep sea.

Now you can see that Skin-diving is both useful and interesting.

1. Skin-diving can take you to _________.

A. an exciting world                B. a new world

C. a beautiful world                D. an interesting and new world

2. This sport _________.

A. is like to travel on the moon        B. is like to play in water

C. is like to visit a new country        D. is like to climb a big rock

3.You can stay in deep water for a long time because __________.

A. you can swim                      B. you can take tanks of air with you

C. you can bring something to eat    D. you can skin diving

4.Which of the following statements is NOT true ?

A. Skin-diving is a new sport.

B. Skin-diving is like visiting the moon

C. The only use of skin-diving is to have more fun.

D. Skin-diving is not only interesting but useful.

5. Skin-diving is a useful and interesting sport because __________.

A. you can catch fish with your hands

B. you can clean the ship in the water

C. you can get many things from the deep sea

D. all of the above

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.

从方框中所给的选项中选出能填入空白处的最佳选项，补全短文。其中有一项为多余选项。

E. First, we should find out ways to reuse it.

F. And we can’t even use all of that.