I _____ a lot from this guy. He borrowed my clothes, he borrowed my money, he borrowed my tennis racket. But when I caught him using my toothbrush that was the last straw, so I kicked him out!

A. sped up with                B. mixed up with

C. put up with                   D. teamed up with

I _____ a lot from this guy. He borrowed my clothes, he borrowed my money, he borrowed my tennis racket. But when I caught him using my toothbrush that was the last straw, so I kicked him out!

A．sped up with       B．mixed up with      C．put up with        D．teamed up with

Teeth are important．Strong，healthy teeth help you chew foods that help you grow．They help you speak clearly．And，they help you look your best．Here are some tips for you to take care of your teeth．

1．Brush your teeth in the right way．

Brush your teeth at least twice a day—after breakfast and lunch or after sweet snacks，too．

Brush all of your teeth，not just the front ones，Spend time brushing teeth along the sides and back of your mouth．Brush away from your gums，too．

Spend at least three minutes each time you brush．Play a song you like to help pass the time．Get a new toothbrush every three months．When you buy your toothbrush，be sure it has soft bristles．

2．Learn how to floss your teeth．

Flossing is a very important way to keep your teeth healthy．Food may hide in places where a toothbrush cannot get to，like the space between two teeth．Flossing can help get rid of it．Carefully move floss between two teeth．Up and down．You’ll need to floss your teeth at least once a day．

3．Have good eating habits．

You need to be careful about what you eat and drink. Eating sugar is a major of tooth decay．Eating sugar before you go to bed can make things even worse，eat lots of fruit and vegetables and drink water instead of soda．

1.The passage is mainly about          ．

A．teeth are important.

B．how to brush and floss your teeth

C．how to form good eating habits

D．how to take care of your teeth

2.The underlined word “tips” in this passage means          ．

A．money given to the waiter for personal services

B．piece of advice on how to do something

C．light blow, tap

D．thin end of something

3.Which is NOT mentioned in this passage？

A．Flossing your teeth．                                       B．Having good eating habits．

C．Brushing your teeth．                               D．Going to see the dentist．

4.Which of the following statements is NOT true according to this article？

A．We should brush our teeth at least twice a day．

B．Flossing can help to get rid of the food hidden between two teeth．

C．One of the major causes of tooth decay is eating sugar．

D．We don’t have to brush our teeth if we eat a lot of fruit and vegetables．

The Healthy Habits Survey shows that only about one third of American seniors have correct habits. Here are some findings and expert advice.

1. How many times did you brush your teeth yesterday?

Finding：A full 33% of seniors brush their teeth only once a day.

Step：Remove the 300 types of bacteria in your mouth each morning with a battery-operated toothbrush.

Brush gently for 2 minutes, at least twice a day.

2. How many times did you wash your hands or bathe yesterday?

Finding：Seniors, on average, bathe fewer than 3 days a week. And nearly 30% wash their hands only 4 times a day----half of the number doctors recommend.

Step：We touch our faces around 3,000 times a day-often inviting germs(病菌)to enter our mouth, nose, and eyes. Use toilet paper to avoid touching the door handle. And, most important, wash your hands often with hot running water and soap for 20 seconds.

3. How often do you think about fighting germs?

Finding：Seniors are not fighting germs as well as they should.

Step：Be aware of germs. Do you know it is not your toilet but your kitchen sponge(海绵)that can carry more germs than anything else? To kill these germs, keep your sponge in the microwave for 10 seconds.

1.What is found out American seniors?

A. Most of then have good habits.

B. Nearly 30% of then bathe three days a week.

C. About one third of them brush their teeth only once a day

D. All of then are fighting germs better than expected..

2.Doctors suggest that people should wash their hands      .

A. eight times a day                  B. three times a day

C. four times a day   D. twice a day

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

A. We should keep from touching our faces.

B. There are less than 300 types of bacteria in the mouth.

C. A kitchen sponge can carry more germs than a toilet.

D. We should wash our hands before touching a door handle.

4.The text probably comes from       .

A. a guide book                 B. a popular magazine

C. a book review                D. an official document

Often we take for granted the many household items we use every day. It is difficult to imagine there was a time in the past when these inventions did not exist. Actually, several of the most common inventions have been with us for quite some time. Inventions like toothbrush, contact lenses（隐形眼镜）, and credit cards came into use long ago.
The first toothbrush was introduced in China in the late 1400s but it was only 300 years later that this simple tool came into common use in Europe. By the nineteenth century, a variety of paste and powder cleaners were available throughout Europe as dental(牙齿的) care became more widespread. The first tube of toothpaste hit the market in Great Britain in 1891.
There is evidence to show that the first contact lenses were actually suggested by an astronomer, Sir John Herschel, in 1827. However, SirJohn Herschel was never able to create a working model of his idea. It was not until 1887 that a Swiss doctor from Zurich, Dr. Eugen Frick, came up with a workable process for producing precision (精密)lenses. Dr. Frick designed a new method for producing contact lenses,and the Zeiss factory in Germany  began to produce contact lenses.
Credit cards have also been available for many years. They have been in use in the United States since the 1920s. At first, these cards were only used to buy gas in the quickly growing automobile service industry. Then, in the 1950s, Diners Club introduced the first general-purpose credit card. Today, credit cards such as Master Card, Visa, and American Express are commonly used by travelers around the world.
While it may be true that some of the greatest inventions and discoveries in history came about by chance, the majority of inventions that simplify our lives today came about through careful research and patient study. Of course, it still holds true that even with all the comforts of modern technology, inventors continue to search for ways of helping all of us get out of doing those necessary but tedious (乏味的) tasks which we still face. As the old saying goes, “Necessity is the mother of invention.”
【小题1】From the second paragraph we can learn that _____.