精英家教网 > 初中英语 > 题目详情

Now boys and girls,let’s begin our class.As I know, you are interested in some strange math problems.So today I’m going to tell you one of the strangest ways to multiply numbers of two or more figures.Maybe you don’t know the word “multiply”.The word “multiply” mean s“乘...,乘法的乘”in Chinese.For example,8 multiplied by 2 is l6.It means “8乘以2是16” in Chinese.Do you understand now? Of course.there are many ways to multiply numbers.But here is one of the strangest.

Imagine you wish to multiply 23 by 17.In Chinese,it means 23乘以17.Half of 23 is 11.5.Write only 11 under 23 as you see in the paper.Half of 11 is 5.5.Write only 5 under 11.Now think it over, what number will you write under 5? Yes, you are right, just 2.Now please write the number under 5.Continue until you have 1.

Now write numbers under 17.But this time you must multiply each number by two to write the number under it.For example, you should write 34 under 17.As a rule, what number will you write under 34? Yes, you are right, 68.Now please write the number under 34.Continue until you have a number on the same line as 1.Now draw a line through any row that has an even number on the left.Yes, even number means 偶数 in Chinese.In our example there is only one even number.Right? Now please draw a line through the line that has au even number on the left.Now add the rest of the numbers in the right hand row.Believe it or not, you will get the right answer.What is it? OK.Please write the number, I mean the right answer in the right place.

Now class, I'll give you several minutes to discuss how it works.

1.What is the speaker most probably doing now?

A.Giving a lesson.                        B.Holding a meeting.

C.Having a party.                         D.Playing a game.

2.What number does the speaker tell you to write under 5?

A.2.                B.5.5.            C.11.              D.10.

3.What is the last number you should write?

A.68.            B.272.             C.391.             D.255.

4.Which subject is the speaker teaching?

A.Chinese.          B.Chemistry.        C.Math.            D.Science.

5.What does the speaker tell you to do at the end of the talk?

A.To have a rest.                         B.To do homework.

C.To have a discussion.                    D.To play a game.

练习册系列答案
相关习题

科目:初中英语 来源: 题型:阅读理解


Short and shy, Ben Saunders was the last kid in his class picked for any sports team. "Football, tennis Cricket — anything with a round ball, I was useless." he says now with a laugh. But back then he was the object of jokes in school gym classes in England's rural Devonshire.
It was a mountain bike he received for his 15th birthday that changed him. At first the teen went biking alone in a nearby forest. Then he began to cycle along with a runner friend. Gradually, Saunders set his mind building up his body, increasing his speed, strength and endurance. At age 18, he ran his first marathon.
The following year, he met John Ridgway, who became famous in the 1960s for rowing an open boat across the Atlantic Ocean. Saunders was hired as an instructor at Ridgway's school of Adventure in Scotland, where he learned about the older man's cold-water exploits (成就). Intrigued, Saunders read all he could about Arctic explorers and North Pole expeditions, then decided that this would be his future. Journeys to the Pole aren't the usual holidays for British country boys, and many people dismissed his dream as fantasy. "John Ridgway was one of the few who didn't say, 'You are completely crazy,'" Saunders says.
In 2001, after becoming a skilled skier, Saunders started his first long-distance expedition toward the North Pole. He suffered frostbite, had a closer encounter (遭遇) with a polar bear and pushed his body to the limit.
Saunders has since become the youngest person to ski alone to the North Pole, and he's skied more of the Arctic by himself than any other Briton. His old playmates would not believe the transformation.
This October, Saunders, 27, heads south to explore from the coast of Antarctica to the South Pole and back, an 1800-mile journey that has never been completed on skis.
【小题1】The turning point in Saunders' life came when ________.
A.he started to play ball games
B.he got a mountain bike at age 15
C.he ran his first marathon at age 18
D.he started to receive Ridgway's training
【小题2】We can learn from the text that Ridgway ________.
A.dismissed Saunders' dream as fantasy
B.built up his body together with Saunders
C.hired Saunders for his cold-water experience
D.won his fame for his voyage across the Atlantic
【小题3】What do we know about Saunders?
A.He once worked at a school in Scotland.
B.He followed Ridgway to explore the North Pole.
C.He was chosen for the school sports team as a kid.
D.He was the first Briton to ski alone to the North Pole.
【小题4】The underlined word "Intrigued" in the third paragraph probably means ________.
A.ExcitedB.ConvincedC.DelightedD.Fascinated
【小题5】It can be inferred that Saunders' journey to the North Pole ________.
A.was accompanied by his old playmates
B.set a record in the North Pole expedition
C.was supported by other Arctic explorers
D.made him well-known in the 1960s

查看答案和解析>>

科目:初中英语 来源:2013届浙江省乐清市盐盆一中九年级上第一次月考英语试卷(带解析) 题型:阅读理解


 
Peter is a sixth-grader at Woodland Primary School. He is only 12 years old but has been smoking for three years. John, 15, is a Junior 2 student at Woodland Secondary School. He began smoking four years ago. “Smoking is part of my life,” John said. Peter and John are not those boys’ real names. But their problem, smoking, is a very real problem. In many countries, smoking is becoming a bigger problem for young people. Most smokers start in their teens or earlier.
A study of 8,000 London students shows that smoking is a problem for many British kids. More than 21% of middle school students and 6 % of primary school pupils said they smoked. “If young people start smoking early, it will be very hard for them to give up later on,” said a professor.
Every year, about four million people die because of smoking. And if people keep smoking,  that number will go up to about ten million a year by 2030, the World Health Organization (WHO) says. So we have to learn and tell others about the dangers of smoking.
【小题1】The sentence “Smoking is part of my life” probably means “__________”

A.I don’t smoke very often.
B.Smoking is very important to me.
C.I don’t smoke at all.
D.I’m going to give up smoking.
【小题2】What will probably happen if a person starts smoking early?
A.He will surely die early.
B.He cannot stop smoking.
C.It will be difficult for him to give up smoking.
D.He will become lazy soon.
【小题3】The study in the passage shows that __________.
A.smoking is a serious problem among British students
B.there are more and more smokers in England
C.some student smokers are having fun smoking
D.most of smokers are young students
【小题4】The main idea of this passage is that__________.
A.smoking is becoming a bigger problem for young people
B.more and more people die because of smoking every year
C.WHO asks young people to give up smoking
D.we needn’t worry about the student smokers
【小题5】As middle school students, what should we do from now on?
A.We should start smoking after middle school.
B.We should ask others to smoke outside.
C.We should laugh at smokers.
D.We should say no to smoking.

查看答案和解析>>

科目:初中英语 来源:2013-1014学年江苏省仪征市七年级上学期期中考试英语试卷(解析版) 题型:阅读理解

Now children can do many nice things after school. They can read books, ride bikes, watch TV and play games. But boys like playing ball games best.

The children near my door often play football in the garden, and sometimes they break(打破) my windows. One Saturday afternoon I stay at home and read a book. After a few minutes, I close my eyes and go to sleep. Suddenly(突然) a sound(声音) at the door wakes me up. Soon a little boy comes in.

Not one of my windows again?”

“ Oh, no!” answers the boy. “ Your window is open this time and our ball is in your bedroom. May I get it, please?”

1. The boys like ______ best after school.

A. reading books   B. riding bikes   C. watching TV   D. playing ball games

2. The boys ____________.

A. often play with me         B. often play football in my house

C. often come to my house     D. sometimes break my windows

3. One Saturday afternoon I _________.

A. read at home                                B. see the boys playing football

C. read a book in the garden                       D. play games with my son

4.The little boy comes to my house to _________.

A. get his ball   B. play with me

C. mend(修理) my window   D. break my window

5. Which of the following is WRONG?

A. The ball comes into my house through my window.

B. The boys often play football in the garden.

C. My house is near the garden.

D. The boys near my door break my windows every day.

 

查看答案和解析>>

科目:初中英语 来源:2013届河北省唐山市初二下学期3月月考英语试卷 题型:阅读理解

Short and shy, Ben Saunders was the last kid in his class picked for any sports team. "Football, tennis Cricket — anything with a round ball, I was useless." he says now with a laugh. But back then he was the object of jokes in school gym classes in England's rural Devonshire.

It was a mountain bike he received for his 15th birthday that changed him. At first the teen went biking alone in a nearby forest. Then he began to cycle along with a runner friend. Gradually, Saunders set his mind building up his body, increasing his speed, strength and endurance. At age 18, he ran his first marathon.

The following year, he met John Ridgway, who became famous in the 1960s for rowing an open boat across the Atlantic Ocean. Saunders was hired as an instructor at Ridgway's school of Adventure in Scotland, where he learned about the older man's cold-water exploits (成就). Intrigued, Saunders read all he could about Arctic explorers and North Pole expeditions, then decided that this would be his future. Journeys to the Pole aren't the usual holidays for British country boys, and many people dismissed his dream as fantasy. "John Ridgway was one of the few who didn't say, 'You are completely crazy,'" Saunders says.

In 2001, after becoming a skilled skier, Saunders started his first long-distance expedition toward the North Pole. He suffered frostbite, had a closer encounter (遭遇) with a polar bear and pushed his body to the limit.

Saunders has since become the youngest person to ski alone to the North Pole, and he's skied more of the Arctic by himself than any other Briton. His old playmates would not believe the transformation.

This October, Saunders, 27, heads south to explore from the coast of Antarctica to the South Pole and back, an 1800-mile journey that has never been completed on skis.

1.The turning point in Saunders' life came when ________.

A.he started to play ball games

B.he got a mountain bike at age 15

C.he ran his first marathon at age 18

D.he started to receive Ridgway's training

2.We can learn from the text that Ridgway ________.

A.dismissed Saunders' dream as fantasy

B.built up his body together with Saunders

C.hired Saunders for his cold-water experience

D.won his fame for his voyage across the Atlantic

3.What do we know about Saunders?

A.He once worked at a school in Scotland.

B.He followed Ridgway to explore the North Pole.

C.He was chosen for the school sports team as a kid.

D.He was the first Briton to ski alone to the North Pole.

4.The underlined word "Intrigued" in the third paragraph probably means ________.

A.Excited

B.Convinced

C.Delighted

D.Fascinated

5.It can be inferred that Saunders' journey to the North Pole ________.

A.was accompanied by his old playmates

B.set a record in the North Pole expedition

C.was supported by other Arctic explorers

D.made him well-known in the 1960s

 

查看答案和解析>>

科目:初中英语 来源:11-12学年甘肃省兰州市九年级下学期月考英语试卷 题型:完型填空

Have you ever planted a few trees on Tree Planting Day? Each year, millions of people, both 41.______, plant a lot of trees. But this may not be the best way to make your home a 42._____ place.

   Last week we visited a park in Hebei. We were 43._____ to find most of the trees had been burned. The workers told us that the trees 44._____ soon after they were planted because they weren’t watered well enough. 45._____ workers burned them and cleaned the place for 46._____ trees to be planted this year. 47.______ a card found in one of the dead trees, a student wrote,” I hope this tree will grow up with me to 48.______ the backbone (栋梁) of our country.” The workers said that the survival (存活) of the trees was really more important than 49.______ trees were planted.

   Some people in Beijing now have a new idea that they can donate (捐赠) some money and let professional (专业人士) plant and 50.______ the trees.

1. A. students and teachers     B. old and young 

C. boys and girls                 D. mother and father

2.A. smaller        B. colder        C. warmer         D. larger

3.A. pleased        B. happy        C. interesting       D. surprised

4.A. died          B. grew         C. bought           D. planted

5.A. Though        B. When         C. Because          D. So

6.A. few           B. old            C. new            D. dead

7.A. Over           B. From          C. On              D. About

8.A. need          B. hold           C. plant             D. be

9.A. how many     B. when           C. how soon         D. why

10.A. take out      B. take down        C. take up        D. take care of

 

查看答案和解析>>

同步练习册答案