【題目】To battle world hunger, the great scientist once traveled to many places where populations _______ faster than crop production at that time.

A. expanded B. were expanding

C. has expanded D. would expand

【答案】A

【解析】試題分析：考查時(shí)態(tài)。由once和at that time可知用過去時(shí)態(tài)，科學(xué)家去過的地方應(yīng)該是指在當(dāng)時(shí)那些地方的人口處于快速發(fā)展階段，只是在那時(shí)的一般事實(shí)，故用一般過去時(shí)即可。句意：為了與世界饑荒作斗爭，這位偉大的科學(xué)家曾經(jīng)去過了許多當(dāng)時(shí)人口發(fā)展速度遠(yuǎn)超過農(nóng)作物生產(chǎn)速度的地方。故選A

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：

【題目】Education is an expensive part of American life. Its size is matched by its variety. Differences in American schools compared with those found in the majority of other countries lie in the fact that education here has long been intended for everyone. Schools are expected to meet the needs of every child, regardless of ability, and also the needs of society itself. This means that public schools offer more than academic subjects. It surprises many people when they come here to find high schools offering such courses as typing, sewing, radio repair, computer programming or driver training, along with traditional academic subjects such as mathematics, history, and languages. Students choose their courses depending on their interests, future goals, and level of ability. The basic goal of American education is to develop every child to the utmost of his or her own possibilities, and to give each one a sense of community.

Schools have traditionally played an important role in creating national unity and “Americanizing” the millions of immigrants who have poured into this country from many different backgrounds and origins. Schools still play a large role in the community, especially in the small towns.

The teaching may seem unfamiliar to many, not only because it is informal, but also because there is not much emphasis on learning facts. Instead, Americans try to teach their children to think for themselves and to develop their own intellectual and creative abilities. Students spend much time learning how to use materials, libraries, statistics, and computers. Americans believe that if children are taught to reason well and to research well, they will be able to find whatever facts they need throughout the rest of their lives. Knowing how to solve problems is considered more important than the accumulation (積累) of facts.

This is America’s answer to the searching question that thoughtful parents all over the world are asking themselves in the fast-moving time, “How can one prepare today’s child for a tomorrow that one can neither predict nor understand?”

【1】The underlined words “reason well” probably means _____.

A. persuade firmly B. list the reasons clearly

C. think logically D. conclude immediately

【2】It is implied in the passage that _____.

A. all high-school students take the same courses

B. every student must take practical ability training courses

C. every public school offers the same academic subjects

D. the subjects every student takes may vary

【3】American schools place great emphasis on the learners’ _____.

A. knowledge B. accumulation of facts

C. creativity D. ability to work with hands

【4】What makes American education different from others’?

A. The large number of schools.

B. The variety of the courses.

C. Its consideration for immigrants.

D. The basic goal of the education.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Many years ago, when I was fresh out of school and working in Denver, I was driving to my parents’ home in Missouri for Christmas. I stopped at a gas station（加油站） about 50 miles from Oklahoma City, where I was planning to stop and visit a friend. While I was standing in line at the cash register（收款臺）, I said hello to an older couple who were also paying for gas.

I took off, but had gone only a few miles when black smoke poured from the back of my car. I stopped and wondered what I should do. A car pulled up behind me. It was the couple I had spoken to at the gas station. They said they would take me to my friend’s. We chatted on the way into the city, and when I got out of the car, the husband gave me his business card.

I wrote him and his wife a thank-you note for helping me. Soon afterward, I received a Christmas present from them. Their note that came with it said that helping me had made their holidays meaningful.

Years later, I drove to a meeting in a nearby town in the morning. In late afternoon I returned to my car and found that I’d left the lights on all day, and the battery（電池） was dead. Then I noticed that the Friendly Ford dealership—a shop selling cars—was right next door. I walked over and found two salesmen in the showroom.

“Just how friendly is Friendly Ford?”I asked and explained my trouble. They quickly drove pickup truck to my car and started it. They would accept no payment, so when I got home, I wrote them a note to say thanks. I received a letter back from one of the salesmen. No one had ever taken the time to write him and say thank you, and it meant a lot, he said.

【1】The underlined words“took off”in Paragraph 2 mean_________．

A．turned off B．moved off

C．put up D．set up

【2】What happened when the author found smoke coming out of his car?

A．He had it pulled back to the gas station．

B．The couple sent him a business card.

C．The couple offered to help him.

D．He called his friend for help.

【3】The battery of the author’s car was dead because ___________．

A．something went wrong with the lights

B．his meeting lasted a whole day

C．he forgot to turn off the lights

D．he drove too long a distance

【4】By telling his own experiences, the author tries to show ________．

A．how to write a thank-you letter

B．how to deal with car problems

C．the kind-heartedness of older people

D．the importance of expressing thanks

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】 Readers are required to _________ the rules of the library and mind their manners.

A. observe B. confirm

C. review D. appreciate

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】A student walks into his first class and realizes he forgot all about the midterm exam. He knows he needs to bring his grades up, and getting a zero will make it nearly impossible. He quickly jots down some notes and shoves them under his lap hoping it will help him pass. Cheating is a major concern in all academic environments. Students are creating new and more outrageous(令人吃驚的) ways of cheating every day; some claim that certain accounts of cheating can be justified, but overall it can always be prevented.

Cheating has been around forever, and millions of ways to cheat have been fashioned. Copying homework and cheat sheets are some of the most basic ways students in all education levels have cheated. Some students think nothing about writing a few answers on their hand, in a gum wrapper, or boldly using a study guide to cheat. Desperate students have even gone as far as to steal the test or scan in bottle wrappers and put answers into the nutrition label. The Internet has now become available in almost every location. Computers can be accessed at school, at home, and now even on cell phones. This opens a doorway for even more methods of cheating to be born.

There are countless opinions on whether or not cheating can be justified. The truth is this behavior will always be a matter of opinion with each scenario of cheating. Students often rationalize their cheating by claiming they forgot to look over the material or did not understand what the teacher or professor was saying. Some may counter these arguments by saying that the students could have set reminders or asked the teacher to explain the material before the day of the test. Some other reasons why students believe cheating is justified are their heavy workloads and trying to find time for school, sports, friends, and family. This may be true in certain instances, however, all students have these problems, and it is unfair to the students who refrain(忍耐，節(jié)制) from cheating when the student who is dishonest receives a better grade. The majority of students who think cheating is acceptable may believe the reason for this is that sometimes students are unaware they are cheating, there is not enough time given for assignments, or that the information is too much for the course.

It may be difficult to accomplish, but cheating can be prevented. Teachers and professors have tried many options to stop cheating. These options can range anywhere from simply spreading testtakers out in a room, to expelling(驅(qū)逐) a student, which will most likely hinder their plans of getting into another college. One simple way to fix the problem is to scold the student when caught. They may be so scared or embarrassed that they never do it again. This is a risky way to prevent cheating in some cases, however, because it can possibly damage selfesteem. Another simple way to avoid cheating is to create many different kinds of the same test. This prohibits(阻止) students from getting the answers off of a neighbor's test, but students still have the option of using other cheating tactics.

There may be a million ways to cheat and get away with it, but there are few times, if any, that it is justified. Cheating never has to be a necessity and it is never worth compromising morals and losing years worth of working towards a degree. This problem is spreading throughout America; with everyone's help, it can be stopped.

【1】Which is the best title of this passage?

A．To cheat or not to cheat

B．Show your opinion on cheating

C．Debates on cheating

D．Different ways of cheating

【2】The second paragraph mainly tells us that ________.

A．cheating through the Internet is the most basic way

B．students who cheat in exams are cleverer

C．millions of ways to cheat have been fashioned

D．students cheat in exams to score better grades

【3】The reason that is given by most students who think cheating is understandable is that ________.

A．they don't understand their teachers' words

B．they bury themselves in a lot of homework

C．they don't have enough time to complete the study tasks

D．they forget to look over the material

【4】What does the underlined word “hinder” in Paragraph 4 mean?

A．Prevent. B．Benefit. C．Confuse. D．Protect.

【5】What is the author's attitude toward cheating?

A.It is reasonable. B．It is necessary.

C．It can be praised. D．It must be prevented.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Pango was a village in India. The people were poor. However, they were not unhappy. After all, their forefathers had lived in the same way for centuries.

Then one day, some visitors from the city arrived. They told the villagers there were some people elsewhere who liked to eat frog’s legs. However, they did not have enough frogs of their own, and so they wanted to buy frogs from other places.

This seemed like money for nothing. There were millions of frogs in the fields around, and they were no use to the villagers. All they had to do was catch them. Agreement was reached, and the children were sent into the fields to catch frogs. Every week a truck arrived to collect the catch and hand over the money. For the first time, the people were able to dream of a better future. But the dream didn’t last long.

The change was hardly noticed at first, but it seemed as if the crops were not doing so well. More worrying was that the children fell ill more often, and, there seemed to be more insects around lately.

The villagers decided that they couldn’t just wait to see the crops failing and the children getting weak. They would have to use the money earned to buy pesticides (殺蟲劑）and medicines. Soon there was no money left.

Then the people realized what was happening. It was the frog. They hadn’t been useless. They had been doing an important job—eating insects. Now with so many frogs killed, the insects were increasingmore rapidly. They were damaging the crops and spreading diseases.

Now, the people are still poor. But in the evenings they sit in the village square and listen to sounds of insects and frogs. These sounds of the night now have a much deeper meaning.

【1】From Paragraph 1 we learn that the villagers ________.

A. worked very hard for centuries

B. dreamed of having a better life

C. were poor but somewhat content

D. lived a different life from their forefathers

【2】Why did the villagers agree to sell frogs?

A. The frogs were easy money.

B. They needed money to buy visitors.

C. They wanted to please the visitors.

D. The frogs made too much noise.

【3】What might be the cause of the children’s sickness?

A. The crops didn’t do well.

B. There were too many insects.

C. The visitors brought in diseases.

D. The pesticides were overused.

【4】What can we infer from the last sentence of the text?

A. Happiness comes from peaceful life in the country.

B. Health is more important than money.

C. The harmony between man and nature is important.

D. Good old days will never be forgotten.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】For my brother and I, mowing(割草) yards during the summer is a good way to earn pocket change. Dad was our salesman. He traded our service to neighbors at a low price they could not refuse. My brother and I got $10 per yard. However, I later found out our competitors were charging $ 20 or more for the same amount of work.

One afternoon we were cutting our neighbor’s yard. When I was finishing up, I was tired and sweaty. I pictured the tall glass of icy drink I would have to cool down soon. I was just about to cut off the lawn mower when I saw Dad pointing to one piece. I thought about the poor change I was getting paid for cutting grass so high that it almost broke the mower. I ignored him and kept walking. Dad called me out, “You missed a piece.”

I frowned (皺眉), hoping he would let me slide and go home. He kept pointing. So angry, I went back to cut that piece of grass. I said to myself, “That one piece isn’t hurting anyone. Why won’t he just let it go?”

But when I became an adult, I understood his message: When you are running a business, the work you do says a great deal about you. If you want to be seen as a businessman with honesty, you must deliver a quality product. That single piece of grass meant the job was not done.

Other neighbors took notice of the good work we did and we soon got more business. We started out with one client(客戶), but by the end of the summer we had five.

The lesson my dad taught me stayed with me: If you say you are going to perform a job at a certain time, keep your word. Give your customers the kind of service you would like to receive. It shows how sincere you are and how much pride you take in your work.

【1】Which of the following statement is true?

A. His father was not a good businessman.

B. His father charged more for his service.

C. His father’s service was good but cheap.

D. His neighbors thought their service was poor.

【2】When Dad asked the writer to go back, the writer felt ___________.

A. doubtful B. surprised

C. terrified D. annoyed

【3】What did Dad teach the writer?

A. To do your work as well as possible.

B. To earn as much money as possible.

C. To get as more business as possible.

【4】 The best title for the passage may be ___________.

A. The Memory of My Childhood

B. The Lesson from My Dad

C. The Yard of Our Neighbor

D. The Grass Cutting days

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Whenever I read the old letters, _____ was fairly often, sweet memories warmed my heart.

A. who B. which C. when D. that

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】—How long do you suppose it will be____ Xiamen Railway Station comes into operation?

—Twenty days or so．

A．a(chǎn)fter B．before C．since D．that

查看答案和解析>>

同步練習(xí)冊答案