Do you love cheese? If you do, this new surve...

Do you love cheese? If you do, this new survey will make you happy. According to the survey, cheese is good for teeth and can protect people from getting cavities (蛀牙) . The survey is made by a group of scientists from the Academy of General Dentistry, an organization from the USA. The scientists find that eating cheese can make the mouth’s PH rise. And the higher the mouth’s PH is, the less likely it is that a person gets cavities. That’s why cheese is good for tooth health.

In order to do the survey, the scientists invited 68 children between 12-15 years old to join the test. They tested the mouth’s PH of the children at first. Then they divided the children into three groups. One group of children ate some cheese, another group of children ate sugar-free yoghurt and the last group of children drank a glass of milk. After that, the scientists tested the mouth’s PH of all the children for several times.

The scientists found that the mouth’s PH of the last two groups of children didn’t change, but the mouth’s PH of children from the first group rose greatly. Besides, the scientists also found that cheese could create a protective layer (保护层) on teeth. The layer could protect the teeth from getting hurt by many bad things.

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九年级英语其他题极难题查看答案及解析

—Jean, I didn’t do very well in this test.

—____. I’m sure you will make great progress if you improve the way you study.

A. Not at all    B. Don’t lose heart  C. I hope so         D. Never mind

九年级英语单项填空困难题查看答案及解析

—Jean, I didn’t do very well in this test.

—____. I’m sure you will make great progress if you improve the way you study.

A．Not at all

B．Don’t lose heart

C．I hope so

九年级英语单项填空中等难度题查看答案及解析

—Do you know if Jack will drive to New York this weekend?

—Jack? Never! He　　　　　　 driving so far.

A. has hated　　 B. will hate　　 C. hated　　 D. hates

九年级英语单项填空中等难度题查看答案及解析

– Do you know if Jack will drive to New York this weekend?

- Jack? Never! He ＿＿＿＿＿＿ driving so far.

A. has hated　　　　 B. will hate　　　　 C. hated　　 D. hates

九年级英语单项填空中等难度题查看答案及解析

---Dad, I will learn harder and do more exercise this year. Believe me.

---If you make a ___________，you must keep it.

A. joke B. noise C. mistake D. promise

九年级英语单选题简单题查看答案及解析

Do you like singing? What do you think of singing? If you love it, you will like the TV show Don't Forget the Lyrics.It is a popular singing show in America.This program started from July 11th , 2007.

So how does this new singing show work? The contestants need to have much knowledge（知识）of lyrics.In the show, the contestants have to sing the songs with right lyrics.When he finishes a song with wrong lyrics, he can't sing again.If he finishes all ten songs with right lyrics.he is the winner and he can get a very good prize.

You may say, “I can't sing well, but I remember many lyrics of beautiful songs.Can I join it?”Don't worry!

The show says, “You don't have to sing it well.You just have to sing it right.”Every music lover can join it.

1.What is Don't Forget the Lyrics?

A.A popular song. B.A popular story

C.A popular movie D.A popular singing show.

2.When did Don't Forget the Lyrics come out?

A.In the year 2000. B.In the year 2005.

C.In the year 2007. D.In the year 2010.

3.What does the underlined word “contestants” mean?

A.Famous singers or actors. B.The best performers.

C.The successful musicians. D.Participants （参与者）in the singing competition.

4.How many songs should you finish singing right if you want to win the good prize?

A.Five. B.Seven. C.Eight. D.Ten..

九年级英语阅读单选中等难度题查看答案及解析

If you ___ a list of things that you have to do, you won’t forget to do them.

A. make B. will make C. made D. are making

九年级英语单选题中等难度题查看答案及解析

What do you think of singing? If you love it, you will like the TV show Don’t Forget the Lyrics. It is a popular singing show in America. This program started from July 11th, 2007.

So how does this new singing show work? The contestants need to have much knowledge(知识) of lyrics. In the show, the contestants have to sing the songs with right lyrics. When he finishes a song with wrong lyrics, he can’t sing again. If he finishes all ten songs with right lyrics, he is the winner and he can get a very good prize.

You may say, “I can’t sing well, but I remember many lyrics of beautiful songs. Can I join it?”

Don’t worry!

The show says, “You don’t have to sing it well. You just have to sing it right.” Every music lover can join it.

1.What is Don’t Forget the Lyrics?

A. A popular singing show.               B.A popular story

C. A popular movie                      D.A popular song.

2.When did Don’t Forget the Lyrics come out?

A. In the year 2000.               B. In the year 2005.

C. In the year 2007.               D. In the year 2010.

3.What does the underlined word“contestants” mean?

A. Famous singers or actors.

B. The best performers.

C. Participants (参与者) in the singing competition.

D. The successful musicians.

4.How many songs should you finish singing right if you want to win the good prize?

A．Five.              B. Seven.            C.  Eight .         D. Ten.

九年级英语阅读理解中等难度题查看答案及解析

You will have a lot of reading to do in this grade this year. You can do more of it in less time if you learn to read rapidly. Perhaps you have been told about some habits which keep a person from reading fast and have been strongly asked to break those which you might have.

Do you still have any of these bad habits? Check yourself by answering “yes” or “no” to these questions.

（1）Do you move your lips(嘴唇) when reading silently?

（2）Do you point to words with your finger as you read?

（3）Do you move your head from side to side as you read?

（4）Do you read one word at a time?

If you answer “yes” to any of these questions, start at once to break the habit.If you move your lips, hold your fingers over them,or hold a piece of paper between your lips while you are reading. Then if your lips move, you will know it and can stop them.

If you point to words, hold the two sides of your book, one side with your left hand, the other side with your right hand. Then you won’t have a free finger to use in pointing while reading. If you move your head, place your chin(下巴)in one hand and hold your head still(静止不动的).

If you read no more than one or two three words at a time, you need to work very hard in learning to take in　 more words at each glance(一瞥) as your eyes travel across the lines of words.

Even if you do rather fast now, you can learn to read even faster.As you probably have been

told, the fast reading is to take in whole groups of words as each glance. Read in thought groups and force(强迫)your eyes along the lines of words as fast as you can make them go. Anyone who practices doing these things will be able to read faster

1.You may hold your fingers over your lips while reading so as（为了 ____.

A. to tell others to be silent

B. to feel whether your lips move or not

C. to hold a piece of paper between them

D. to keep yourself from talking to others

2.When you read, ________________ .

A.don’t keep your head still

B.don’t hold your books with your hands

C.don’t stand up near a desk

D.don’t use your finger to point to words

3.If you learn to read fast, __________________.

A.you can read more in less time

B.you can write faster

C.you can understand better

D.you can read less in more time

4.You must _____ those habits that we are talking about in this reading.

A. remember　　 B. have　　　 C. get rid of(消除)　　 D. keep

5.The best title for this passage is ____________.

A.How to read rapidly

B.What to read

C.Reading rules

D. Ways to read less in more time

九年级英语阅读理解困难题查看答案及解析