【题目】How did the sea horse get its name? It's not hard to guess. The top half of this fish looks like a small horse. But looking at the sea horse's tail, you might think "sea monkey" is a better name. Then there's the sea horse's pouch(口袋). "Sea kangaroo" might also be a good name for this fish.

Sea horse live in warm ocean waters all over the world. They keep safe from other fish by hiding in plants and grasses that grow under the sea. They can also change colors to match their surroundings(环境). A sea horse in one place for hours at a time by winding its tail around a plant. It feeds on live food, such as small shrimp(虾). For a fish that doesn't move around much, the sea horse eats a lot-- in just one day, a sea horse can eat 3,000 shrimp!

A sea horse keeps the same mate for its whole life, and it's the male(雄性的) sea horse that gives birth to baby sea horses. How does this happen? Baby sea horse start out as eggs, which come from the female's(雌性的) body. The male carries the eggs in its pouch for about three weeks until they hatch(孵化). Soon after the babies are born, the female gives her mate a new set of eggs.

Sadly, the number of sea horses is becoming smaller. Why is this happening? Some places where sea horses once lived have been filled in to make new land. Also, many sea horses are caught and sold as aquarium(水族馆) fish. This really is not a good idea because most sea horses don't live long in aquarium. The best place for a sea horse is the ocean.

1The sea horse got its name because of its_______.

A. pouch B. head

C. skin D. tail

2How does a sea horse keep safe from other fish?

A. It rolls up. B. It runs away quickly.

C. It remains still. D. It hides in plants and grasses.

3We can learn from the text that sea horses_______.

A. like to move around B. feed on small sea animals

C. live in cold ocean waters D. change color with the temperature

4What does a female sea horse do with her eggs?

A. She carries them around. B. She hides them in sea grasses.

C. She puts them in the male's pouch. D. She hatches them.

5Why is the number of the sea horses becoming smaller?

A. They grow at a very low speed.

B. Their food is becoming less and less.

C. They are killed by people for food.

D. Their homes are being destroyed.

【题目】根据短文内容,从短文后的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。

Everybody knows about lots of relatively easy things on weight loss. 【1】 However, if you have ever tried some before without success, then the following guides could be more useful for your life.

There’s no magical diet.

We often think that if we can just discover the “right” kinds of foods, we’ll magically lose weight or maintain what we’ve lost. In fact there doesn’t seem to be any “right” diet, and there doesn’t seem to be any evidence that one particular diet will work better with an individual’s body. 【2】

Dieting gets the better of exercising.

It is said that exercise is the key to weight loss—taking the stairs instead of the elevator will make a difference, for instance. 【3】 Decreasing food intake is much more effective than increasing physical activity to achieve weight loss. Of course, both together would be even better.

Work harder than other people.

Exercise may not help go back to what it was before you gained weight. So if you’ve been overweight and you lose weight, maintaining that loss means you’re probably going to have to work harder than other people. Building muscles can help your body burn a few more calories. 【4】 It seems unfair, but that’s the way it is.

【5】

For energy balance, it’s the number of calories that counts. It’s certainly true at least in theory and sometimes in practice. You can gain weight eating too much healthy food as well as unhealthy food. So the point is not to question what a calorie is, but rather to understand that we need to exchange the calorie-packed foods for foods that are less calorie-dense and more nutritionally dense.

A. All calories are created equal.

B. Some of them are also extremely effective when actually carried out.

C. A calorie is a calorie!

D. We know pretty much that any diet will work if you follow it.

E. However, it’s much more efficient to cut calories.

F. Some of the calories we burn come from our basic exercise.

G. However, it’s also likely that you’ll have to do more in the long run.

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