---_______do you brush your teeth?---Twice or...

---_______do you brush your teeth?

---Twice or more a day.

A. How soon　　 B. How far　　 C. How long　　 D. How often

九年级英语单选题中等难度题查看答案及解析

请根据要求改写下列句子，每空一词。

1.We brush our teeth every day. (对划线部分提问)

______ _______ do you brush your teeth?

2.You can store a lot of photos in your computer. (改为被动语态)

A lot of photos can ______ _______ in your computer.

3.Eric looks quite cool in his black leather coat. (改为感叹句)

______ ______ Eric looks in his black leather coat!

4.Tom hasn’t been to that island. Simon hasn’t been to that island, either. (合并为一句)

_______ Tom ______ Simon has been to that island.

5. Her mother bought the rice cooker three months ago.

Her mother _______ _______ the rice cooker for three months.  (改为意义相近的句子)

九年级英语单词拼写困难题查看答案及解析

How fit are your teeth? Are you lazy about brushing them? We brush our teeth every day but few people know how well we're brushing. Today, a French company has introduced an electric toothbrush, which can work wirelessly（无线地）with a smartphone. It's called the Kolibree toothbrush. It has different models, and will cost from$99 to$200 .The US is the first target market.

Users download an app and connect via Bluetooth, and the Kolibree will record: 1 .the time you spent brushing teeth. 2.whether all areas of your mouth are reached.

3 .whether you brush up and down instead of just side to side. Then it will send the information to a mobile phone via Bluetooth, telling you whether you have brushed in a proper way. The Kolibree records your progress and scores your brushing way to help you improve brushing habits. It's kind of like having a private dentist actually watch your brushing on a day-to-day basis.

The toothbrush can also talk to other apps on your phone, so developers could create a game controlled by your toothbrush. When you brush your teeth, you can score your points for beating the monsters in your teeth. That's really very interesting. The Kolibree toothbrush is created to be smart but also fun.

The Kolibree toothbrush was invented by Thomas Serval. He says the idea of inventing it came from his experience as a father. He would come home from work and ask his kids if they had brushed their teeth. They always answered "yes", but Thomas used to find their toothbrush heads dry. He decided that a kind of brush was needed to tell him how well they brushed their teeth.

Thomas says that one day, it'll be possible to use a brushing unit with a camera. The camera can even examine holes in your teeth while you brush.

1.The Kolibree toothbrush was invented by_　　　　 .

A. a French company

B. Thomas Serval

C. Thomas Serval's father

2.How much is the Kolibree toothbrush?

A. From$99 to$200.

B. From$90 to$200.

C. From$20 to$900.

3.What can the Kolibree toothbrush do?

A. It can record how often you brush your teeth.

B. It can tell you what time you should brush your teeth.

C. It can score your brushing way.

4.What's the reason for inventing the Kolibree toothbrush?

A. Its inventor was interested in toothbrushes.

B. The toothbrush heads were too dry.

C. Its inventor wanted to know whether the kids brushed their teeth.

5.What will the Kolibree toothbrush probably be like in the future?

A. The Kolibree toothbrush will be able to talk to other apps.

B. There will be a game controlled by the Kolibree toothbrush.

C. A camera will be installed（安装）in the Kolibree toothbrush.

九年级英语阅读单选简单题查看答案及解析

Turn off the water while you ________ your teeth or washing your hands.

A. were brushing　　　 B. brush　　　

C. are brushing　　 　 　 D. brushed

九年级英语单项填空困难题查看答案及解析

— When _________ you________ your teeth, Billy?

—Just now.

A. do; brush      B. have; brushed

C. did; brush     D. was: brushing

九年级英语单项填空简单题查看答案及解析

"Mary, turn off the water_________you are brushing your teeth. "　 "Sorry, I'll do it at once. "

A. until　　　　　　 B. while　　　　　　 C. during

九年级英语单项填空中等难度题查看答案及解析

Brush your teeth every day， dentists say. In the south of Africa， some people brush their teeth all day long.

They keep a small stick in their mouth to chew or scrub (洗刷） their teeth all day. People cut the sticks from trees. They are the African toothbrushes. People there are used to brushing their teeth with sticks.

Africans think the sticks work better than toothbrushes. The sticks come from nature， and it is said that there is something special about them. The special thing may stop many kinds of tooth problems. “If you have a bad tooth， it is a medicine，” said Diop， a seller in Africa.

The sticks are also much cheaper than toothbrushes.

In Senegal (塞内加尔），the chewing stick is called “sothio”. It means “to clean” in their language. In east Africa，the stick is called “mswaki”. It’s their word for “toothbrush”.

Even the dentists agree that the sticks seem to clean teeth better. Nowadays， some nice health stores in the United States start to sell chewing sticks. They think that the stick is natural kind of tooth care.

1.Who brushes teeth with sticks first according to the passage?

A. The Africans.　　　　　　　　 B.The Americans.

C. The Chinese.　　　　　　　 D.The dentists.

2.When do the people in the south of Africa brush teeth with sticks?

A. In the morning.　　 B. In the afternoon.

C. In the evening.　　 D. All day.

3.Which of the following is NOT true according to the passage?

A. The sticks with something special in it may stop many tooth problems.

B. The sticks， which come from nature， are much cheaper than toothbrushes.

C. The chewing stick， which is called “sothio”， means “to clean”in east Africa.

D. People can buy chewing sticks in the nice health stores in the US.

九年级英语阅读理解中等难度题查看答案及解析

What time of day do you feel most alert (清醒的)? Are you more of a morning person? Or does your brain need a few hours to get going? A lot of research suggests that we should pay attention to our body clock. It can tell us what time of day we are best able to perform, according to the Wall Street Journal (华尔街日报).

For example, many people work best later in the morning. This is because the body’s temperature takes time to go up through the day. Taking a warm shower when you wake up can help speed this up. And when the sun comes out for a few hours, it may help a lot, too.

　 ▲　　 . Morning people will rise early and work better early in the day. Evening people will wake later but their brain will work better toward the end of the day.

Research shows that we’re better at some activities at certain times of the day. Physical performance is at its best between 3 pm and 6 pm, so it’s better to exercise later in the day.

Between noon and 4 pm, people begin to get distracted (思想不集中的). This is partly because our brain becomes less alert after we eat a big meal. Research also shows that we become sleepy around 2 pm.

Finally, it is best to eat during our active periods. This allows our body to burn calories better and stops our blood sugar levels from getting too high. So a suitable time can help us keep healthy. It’s necessary for us to know about it.

1.Why do many people perform best later in the morning?

A.they can’t get up very early B.the body’s temperature needs time to rise

C.they have to take a shower first D.that’s when the brain wakes up

2.Which of the following is the best to fill in the blank?

A.But everyone’s body clock is different B.And everyone’s body clock is almost the same

C.But everyone’s brain is different D.And everyone’s brain is almost the same

3.According to the research, which of the following is TRUE?

A.It’s better to do exercise in the afternoon. B.We perform better after eating a big meal.

C.Sleeping at 2 pm is not good for our health. D.Our body burns calories better at night.

4.What would be the best title for the story?

A.Research about time B.The best time to do things

C.Brain performance D.Different periods of a day

九年级英语阅读单选简单题查看答案及解析

What time of day do you feel most alert(清醒的)? Are you more of a morning person? Or does your brain need a few hours to get going? A lot of research suggests that we should pay attention to our body clock. It can tell us what time of day we are best able to perform, according to the Wall Street Journal.

When it comes to the human brain, many people work best later in the morning. This is because the body’s temperature takes time to rise through the day. Taking a warm shower when you wake up can help speed this up.

But everyone’s body clock is different. Morning people will rise early and work better early in the day. Evening people will wake later but their brain will work better toward the end of the day.

Research show that we’re better at some activities at certain times of the day. Physical performance is at its best between 3pm and 6pm, so it’s better to exercise later in the day.

Between noon and 4 pm, people begin to get distracted (思想不集中的). This is partly because our brain becomes less alert after we eat a big meal. Research also shows that we become sleepy around 2 pm.

Finally, it is best to eat during our active periods. This allows our body to burn calories better and stops our blood sugar levels from getting too high.

1.Many people perform best later in the morning because________.

A.they can’t get up very early. B.they have to take a shower first.

C.the body’s temperature needs time to rise. D.that’s when the brain wakes up.

2.Evening people had better _________.

A.rise early and work in the morning. B.wake later and work better in the evening.

C.rise late and work in the morning D.wake later and work after midnight.

3.According to the research, which of the following is TRUE?

A.It’s better to do exercise in the afternoon. B.We perform better after eating a big meal.

C.Sleeping at 2 pm is not good for our health. D.Our body burns calories better at night.

4.What would be the best title for the story?

A.Research about time. B.The best time to do things.

C.Brain performance. D.Different periods of a day.

九年级英语阅读单选简单题查看答案及解析

Every day, Joan gets up early at six. Then she washes her face and brushes her teeth. After doing morning exercises, she reads English for 30 minutes and then has breakfast. She usually has some bread , an egg and a glass of milk.

At seven o’clock, Joan takes her schoolbag and goes to school. Her school is far away from her home. She has to transfer (换乘）two buses to the school, and on her way, she likes listening to songs.

After Joan gets to school, she gets ready for classes. The first class begins at eight. She has five classes in the morning and three in the afternoon. She has lunch at school. English is her favourite subject. School ends at five o’clock, and then she goes back home.

Joan sometimes helps her mother cook supper and sometimes watches TV in the evening. After supper she does her homework. She always ends it by nine and then takes a bath. She goes to bed at ten.

That’s the everyday life of Joan.

1.How long does Joan read English every morning ?

A.For twenty minutes. B.For half an hour. C.For forty minutes. D.For an hour.

2.Joan’s favourite subject is　　　　　　　　 .

A.Chinese B.maths C.English D.music

3.What can we know about Joan ?

A.She gets up at seven every day. B.Her home is near her school.

C.She listens to songs on the way to school. D.She seldom watches TV in the evening.

4.In what order (顺序）does Joan do the following every day ?

a . She has breakfast；b . She takes a bath；c . She does her homework；d . She reads English；e . She goes to school

A.a-d-e-b-c B.a-d-e-c-b C.d-a-e-c-b D.d-e-a-b-c

九年级英语阅读单选中等难度题查看答案及解析