Mr. Li’s question seemed ________ to answer. Few students in his class put up their

hands.

Germs(细菌) are everywhere. You can’t see them, but they are on your desk, on your computer, and even in the air!

Like people, germs move around the world. They fly with us on planes. When food, clothes, and other things travel around the world, germs travel, too. Some germs are safe, but some are dangerous. Germs cause illnesses like colds and the flu.

Warmer Weather Brings Germs  

The world’s weather is changing. Cooler countries are getting warmer, so insects from hot countries can move there. Some of these insects, like mosquitoes, carry dangerous germs. These germs cause headaches, fever, and can even kill people.

Under Your Skin

Your skin protects you from germs. It stops some germs, but not all. They can enter your body when you eat, or when you have a cut. Germs are on your hands, too. They enter your body when you touch your eyes, nose, or mouth.

Fighting Germs

Your immune system(免疫系统) protects you, too. When germs get inside your body, your immune system finds and kills them. Special cells(细胞) move around your body and fight germs. They help you stay healthy. Other cells make antibodies(抗体). Antibodies help your body find and stop germs.

What can you do to fight germs? You should wash your hands with soap and water. Soap kills many germs, and water washes them away.

1.According to the text, insects ______.

A. kill germs               B. carry germs              C. protect germs   

2.The underlined word “there” refers to ______.

    A. cooler countries         B. hot countries            C. the world

3.Which of the following is right according to the text?

A. All germs are dangerous.

B. There are more germs in cold places.

    C. Germs can get into your body.

4.What do antibodies do?

    A. They get inside your body and kill your immune system .   

B. They carry dangerous germs. 

C. They help protect us from germs.   

5.Which can be the best title for this text?

    A. Germs Are Everywhere B. Weather Is Changing      C. Skin Stops Germs 

Social customs (习俗) and ways of behaving change all the time. Things that were considered impolite many years ago are now acceptable. Just a few years ago, it was considered to be impolite behavior for a man to smoke on the street. No man who thought of himself as being a gentleman would make a fool of himself by smoking when a lady was in the room.

Customs also differ from country to country. Does a man walk on the left or the right of a woman in your country? Or doesn’t matter? What about table manners (行为)?

The Americans and British people not only speak the same language but also share a large number of social customs. For example, in both America and England, people shake hands when they meet each other for the first time. Also most Englishmen will open a door for a woman or offer their seats to women, and so will most Americans. Promptness (准时) is important both in England and in America. That is, the dinner guest (客人) either arrive close to the time that has been made or calls up to explain his delay (耽误).

The important thing to remember about social customs is not to do anything that might make other people feel uncomfortable —especially if they are your guests. There is an old story about a man who gave a very formal dinner party. When the food was served (服务), one of the guests started to eat his peas with a knife. The other guests were amused or greatly surprised, but the host calmly picked up his knife and began eating in the same way. It would have been bad manners to make his guest feel foolish or uncomfortable.

1.The underlined phrase “make a fool of himself” in the first paragraph means        .

    A. make himself strong                      B. make himself rich

    C. make himself comfortable                 D. make himself seemed like a fool

2. If a dinner invitation is for six o’clock, the guest is supposed to arrive at        six.

    A. nearly or a minute or two later than         B. a quarter past

    C. a quarter to                             D. much later than

3.The last example in the passage shows       .

    A. the correct way to use a knife at table     

B. that it is good manners not to make your guest feel foolish or uncomfortable

C. that social customs and ways of behaving change too fast

D. that different counties have different customs

4.The best title of the passage is         .

    A. Different Customs                        B. Social Customs

    C. Customs Are Changing Fast                D. Different Countries, Different Customs