You may have seen a lot of frogs, but if you haven't, you must have heard about frogs. However, have you heard about a frog that can kill a person?

       These small brightly colored amphibians (两栖动物) live in the tropical  rain forests of Central and South America. They are best known for their ability to kill persons even though they are no more than 2 inches long. If we touch their poisonous skin without proper protection (such as gloves), we may die! For animals of this size that can be so deadly, they are certainly one of the world's most poisonous animals! Who are they? They are poison arrow frogs or, simply, poison frogs.

        Poison frogs acquired their name from the Indians. The Indians catch and kill many of these frogs before hanging them upside down over a campfire. As the frogs get hot, the poison drips out of their skin. The Indians collect the poisonous liquid in a bottle and dip(蘸) the tips of their arrows into the bottle. Once the tips are dried, they are ready to be used for their arrows for hunting.

       There are about 170 different types of poison arrow frogs in the world. Though most species have bright markings, either in stripes or patches, on their black bodies, some just wear noticeable single-colored coats. Their shocking skin colors-usually in yellow, red, green, blue or orange-serve as a warning sign to other animals. The sign simply says,” Stay away or pay with your life!” They certainly do not bluff.

1.We can infer that the Indians may kill poison frogs in order to______.

 A. treat diseases                                        B. avoid being bitten

C. hunt animals                                  D. eat their meat

2.According to the passage,  poison frogs______.

A can grow to several meters long                    B. like to change colors on the back

C. have bright-colored skin or markings             D. are on the edge of dying out

3.Which of the following best explains the last sentence of the passage?

A. Poison frogs don't want to kill others.

B. Poison frogs do not just scare others.

C. Poison frogs want to stop others from coming near.

D. Poison frogs just pretend to be dangerous animals.

You may have seen a lot of frogs, but if you haven't, you must have heard about frogs. However, have you heard about a frog that can kill a person?
These small brightly colored amphibians (两栖动物) live in the tropical  rain forests of Central and South America. They are best known for their ability to kill persons even though they are no more than 2 inches long. If we touch their poisonous skin without proper protection (such as gloves), we may die! For animals of this size that can be so deadly, they are certainly one of the world's most poisonous animals! Who are they? They are poison arrow frogs or, simply, poison frogs.
Poison frogs acquired their name from the Indians. The Indians catch and kill many of these frogs before hanging them upside down over a campfire. As the frogs get hot, the poison drips out of their skin. The Indians collect the poisonous liquid in a bottle and dip(蘸) the tips of their arrows into the bottle. Once the tips are dried, they are ready to be used for their arrows for hunting.
There are about 170 different types of poison arrow frogs in the world. Though most species have bright markings, either in stripes or patches, on their black bodies, some just wear noticeable single-colored coats. Their shocking skin colors-usually in yellow, red, green, blue or orange-serve as a warning sign to other animals. The sign simply says,” Stay away or pay with your life!” They certainly do not bluff.

1. 1.

   We can infer that the Indians may kill poison frogs in order to______

   1. A.
      treat diseases
   2. B.
      avoid being bitten
   3. C.
      hunt animals
   4. D.
      eat their meat
2. 2.

   According to the passage,  poison frogs______

   1. A.
      can grow to several meters long
   2. B.
      like to change colors on the back
   3. C.
      have bright-colored skin or markings
   4. D.
      are on the edge of dying out
3. 3.

   Which of the following best explains the last sentence of the passage?

   1. A.
      Poison frogs don't want to kill others
   2. B.
      Poison frogs do not just scare others
   3. C.
      Poison frogs want to stop others from coming near
   4. D.
      Poison frogs just pretend to be dangerous animals

The Mayan Indians lived in Mexico for thousands of years. The Maya were so bright that they achieved a lot. They had farms, temples and cities with many buildings. They knew much about nature and the world around them. This knowledge helped them to live a better life than most people of that time.

In ancient Mexico there were many small clearings in the forest. In each clearing was a village with fields of crops around it. The Maya planted seeds after they cleared the land. A farmer was able to grow crops that produced for several people. But not every Maya had to be a farmer. Some were builders or priests (祭司).

The Maya believed in many gods. They built large temples to honor them. Skillful workers built cities around these temples. It was difficult because they had to carry all of the building materials themselves. Today, many of these ancient Mayan cities and temples are still standing.

Although the Maya worked hard to build the beautiful cities, very few of them lived in them. Usually, only the priests lived in the cities. The other people lived in small villages in the forests. Their houses were much simpler. Most Maya lived a simple life close to nature.

Measuring time correctly was important to the Maya, so Mayan priests made a system to keep track of time. They wrote numbers as dots ( … ) and bars ( — ). They also made a calendar (日历). The year was divided into 18 months of 20 days each with five days left over.

Around the year 800, the Maya left their villages and beautiful cities, never to return. No one knows why this happened. They may have died from a deadly disease. They may have left because the soil could no longer grow crops. The lost secrets of the Maya are still beyond the reach of modern people. They are still one of our greatest mysteries (神秘).

1.The Maya lived better than most people of their times because _____.

A．they had skillful workers

B．they believed in many gods

C．they knew better about nature

D．they could measure time correctly

2.It can be inferred from the passage that _____.

A．the calendar was first invented by the ancient Maya

B．the ancient Mayan cities and temples were well built

C．the ancient Mayan people led a happy life in the cities

D．the priests were not highly respected by the ancient Maya

3.The underlined word “they” in the passage refers to _____.

A．the Mayan people                       B．the Mayan villages

C．the Mayan cities                        D．the lost secrets of the Maya

4.Which of the following would be the best title for this passage?

A．The Life of the Maya                     B．The Cities of the Maya

C．The Mystery of the Maya                  D．The Belief of the Maya

Different people use different languages. We Chinese speak Chinese, and, most of us are learning a foreign language. But there is another kind of language we need to know --- the language of the body.
All over the world, people “talk with their hand, with their heads and with their eyes.” When Japanese people meet, they bow. When Indians meet, they put their hands together. What do American and British do? Americans are more imformal(不拘小节的) than the British. They like to be friendly. They use first names, they ask questions and they talk easily about themselves. When they sit down, they like to relax in their chairs and make themselves comfortable. British people are more reserved(保守的). They take more time to make friends. They like to know you before they ask your name.
When British or American people meet someone for the first time, they shake hands. They do not usually shake hands with people they know well. Women sometimes kiss their women friends, and men kiss women friends (on one cheek only). When a man meets a man, he just smiles, and says, “Hello.” Men do not kiss each other, or hold hands. Even fathers and sons do not often kiss each other.
【小题1】In the passsage, the writer thinks that body language is ______________.

The Mayan Indians lived in Mexico for thousands of years. The Maya were so bright that they achieved a lot. They had farms, temples and cities with many buildings. They knew much about nature and the world around them. This knowledge helped them to live a better life than most people of that time.
In ancient Mexico there were many small clearings in the forest. In each clearing was a village with fields of crops around it. The Maya planted seeds after they cleared the land. A farmer was able to grow crops that produced for several people. But not every Maya had to be a farmer. Some were builders or priests (祭司).
The Maya believed in many gods. They built large temples to honor them. Skillful workers built cities around these temples. It was difficult because they had to carry all of the building materials themselves. Today, many of these ancient Mayan cities and temples are still standing.
Although the Maya worked hard to build the beautiful cities, very few of them lived in them. Usually, only the priests lived in the cities. The other people lived in small villages in the forests. Their houses were much simpler. Most Maya lived a simple life close to nature.
Measuring time correctly was important to the Maya, so Mayan priests made a system to keep track of time. They wrote numbers as dots ( … ) and bars ( — ). They also made a calendar (日历). The year was divided into 18 months of 20 days each with five days left over.
Around the year 800, the Maya left their villages and beautiful cities, never to return. No one knows why this happened. They may have died from a deadly disease. They may have left because the soil could no longer grow crops. The lost secrets of the Maya are still beyond the reach of modern people. They are still one of our greatest mysteries (神秘).
【小题1】The Maya lived better than most people of their times because _____.