On the international market, the price of petroleum has been falling down, which is now _____ it used to be.
A．a(chǎn)s one third asB．one third as much as
C．one third more thanD．a(chǎn)s one third much as
B

試題分析：考查倍數(shù)表達(dá)法。本題中的倍數(shù)是分?jǐn)?shù)的形式one third三分之一；倍數(shù)表達(dá)有四種：1. “A+倍數(shù)+形容詞或副詞的比較級(jí)+than+B”， 2.“A+倍數(shù)+as+形容詞或副詞的原級(jí)+as+B”， 3. “A+倍數(shù)+the size/height/length/width， etc+of+B”， 4. “……times+what+從句”。本題使用了第2種；句意：在國(guó)際市場(chǎng)上，原油的價(jià)格已經(jīng)下降了，現(xiàn)在的幾個(gè)是原來的3分之一。故B正確。
點(diǎn)評(píng)：倍數(shù)表達(dá)要牢記，倍數(shù)表達(dá)法是高中英語教學(xué)的重點(diǎn)，也是歷屆高考的熱點(diǎn)。當(dāng)我們要表達(dá)甲是乙的幾倍時(shí)，通常用句型來表示：
1. “A+倍數(shù)+形容詞或副詞的比較級(jí)+than+B”，表示“A比B大（長(zhǎng)、高、寬等）多少倍”。如：
　This rope is twice longer than that one. 這根繩子是那根繩子的兩倍長(zhǎng)（比那根繩子長(zhǎng)一倍）。
2.“A+倍數(shù)+as+形容詞或副詞的原級(jí)+as+B”，表示“A正好是B的多少倍”。如：
　Asia is four times as large as Europe. 亞洲的面積是歐洲的四倍。
3. “A+倍數(shù)+the size/height/length/width， etc+of+B”，表示“A正好是B的多少倍”。如：
This street is four times the length of that one. 這條街是那條街的四倍長(zhǎng)。
4. “……times+what+從句”。如：
The production is now three times what it was ten years ago. 現(xiàn)在的產(chǎn)量比十年前增加了兩倍。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：改錯(cuò)題

單句改錯(cuò)（共10小題，每小題1 分，共計(jì)10分）
小題1: Dad is coming back from abroad. What presents do you think will he bring to us?   1. __________
小題2: He mustn’t have gone far, because his coat is still here on his chair.              2. __________
小題3:According to a widely accepted theory, the universe began with a “Big Bang” that threw matters in all directions. 3. ___________
小題4:We are advised to wear sunglasses to prevent our eyes from the strong sunlight.    4. ___________
小題5:We won’t have Jim get away with cheating in the exam. 5. ___________
小題6:I have told him about the get-together but if he will come I don’t know. 6. ___________
小題7:He told us that it would be a great chance to build our bodies and we would have a wonderful time in it.  7. __________
小題8: Dressed in a bright red dress, she was easy to be picked out in the big crowd.       8. __________
小題9:She said that she might not come, so it is no point waiting for her here.            9. __________
小題10: After they moved in, she decided to change the curtains because they did not fit the wall and the furniture.  10. __________

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

根據(jù)文章意思，從方框內(nèi)選十個(gè)詞并用其適當(dāng)?shù)男问教羁胀瓿上铝形恼�。（�?qǐng)將答案寫在答題卡上相應(yīng)番號(hào)后的橫線上 ,一空一詞。）

Jim used to have a  1  job as a chef. He always gets along well with others due to his generous __ 2_ . But this happy life was nearly destroyed. Two years ago, Jim had a terrible accident at a crossroads which is busy  3  at rush hours. Because of an  4   driver who didn’t get the driving license, Jim was terribly injured. Luckily, he survived the accident. After that Jim realized that it’s  5 _ for everyone to observe the traffic rules. He then  6  for a post as a human traffic signal and takes up his place in the street    7  the traffic every day. Sometimes he stops people who don’t  8  the rules; Sometimes, he helps the elderly or kids cross the street and they are 9  to him. Thanks to Jim’s effort, the death toll here has dropped to zero in __10 .

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

根據(jù)短文內(nèi)容，從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)，選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。
Maybe you are an average student. You probably think you will never be a top student. This is not necessarily so, however. __1___. Here’s how:
1）. Plan your time carefully. When you plan your week, you should make a list of things that you have to do. After making this list, you should make a schedule of your time. First your time for eating, sleeping, dressing, etc. then decide a good, regular time for studying. __2___. A weekly schedule may not solve all your problems, but it will force you to be aware of what is happening to your time.
2）. __3___. Look around the house for a good study area. Keep this space, which may be a desk or simply a corner of your room, free of everything but study materials. No games, radios, or television! When you sit down to study, concentrate on the subject.
3）. Make good use of your time in class. Take advantage of class time to listen to everything the teachers say. Really listening in class means less work later. Take notes if necessary, because the notes will help you remember what the teacher says and study better.
4）. Study regularly. When you get home from school, go over your notes. Review the important points that your teacher mentioned in class. If you know what your teacher is going to discuss the next day, reading that material. This will help you understand the next class.__4___.
5）. Develop a good attitude towards tests. __5____. They help you remember your new knowledge. The world won’t end if you don’t pass a test, so don’t be overly worried.
There are other methods that might help you with your study. You will probably discover many others after you have tried these.
A．If you do these things regularly, the material will become more meaningful and you will remember it longer.
B．And still it doesn’t end.
C．Anyone can become a better student if he or she wants to.
D．The purpose of a test is to show what you have learned about a subject.
E. Don’t forget to set aside enough time for entertainment.
F. Find a good place to study.
G. Remember to put your books in order before leaving the room.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

閱讀下面短文并回答問題，然后將答案寫在橫線上（請(qǐng)注意問題后的詞數(shù)要求）
[1] For the people living in the Nile Basin，the river is their life. This 6,825 km river，whose watershed (流域) covers three million square kilometers，flows through mountains，woodlands，lakes and deserts. Its potential for fishing，tourism and shipping is great — but so are its challenges.
[2] Water shortage，already serious in Egypt and Sudan，will soon influence several other countries in the watershed, too. Today，about 160 million people depend on the Nile River for their living. Within the next 25 years，the district's population is expected to double，adding to the demand brought about by growth in industry and agriculture. The frequent drought adds to the urgency.
[3] Water quality is also a problem. Precious soil is washed out to sea. Wastes from industry and agriculture create pollution. Higher concentrations of salt influence irrigated soils. Water­borne diseases continue unchecked. In areas where it's hot and damp，water hyacinths choke off lakes，dams and other sections of the river，making it difficult for fishing and other businesses to move forward.
[4] Native people along the narrow area of farmland have watched the sand move closer day by day. They've seen the river change course，and their only source of water thickened with mud. They're very poor and have few choices.
[5] But a new program，the Nile Basin Initiative，is offering very practical assistance. The program is ________ a water­management project. It's a plan for the social and economic development of a vast district as well：it concentrates on the needs of the poorest of the poor and the environment that supports them.
[6] These are whole ecosystem problems，calling for united solutions．Half the Nile Basin's countries are among the world's poorest nations；yet，somehow，they must find the resources，skills and political will to overcome these challenges.
小題1:What is the main idea of the second and third paragraphs? (No more than 10 words)
___________________________________________________________________
小題2:Fill in the blanks in Paragraph 5 with proper words. (No more than 4 words)
___________________________________________________________________
小題3:How large will the population of River Nile district be within the next 25 years?
(No more than 5 words)
___________________________________________________________________
小題4:What do Nile Basin’s countries need to overcome the challenges? (No more than 6 words)
___________________________________________________________________
小題5:What does the underlined word “Its” (Line 3, Paragraph 1 ) refer to?
(No more than 3 words)
___________________________________________________________________

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

根據(jù)短文內(nèi)容，從下面所給的A—F選項(xiàng)中選出能概括每一段(61-65)主題的最佳選項(xiàng)。選項(xiàng)中有一項(xiàng)為多余項(xiàng)。
A. Attach more aid to weak schools.
B. Children should share the same educational rights.
C. Heavy load is supposed to be taken off the students’ shoulders.
D. Bring the industrial management of education to an end.
E. Balanced education may stop school choice.
F. Key schools and classes are unreasonable.
小題1:Education should be intended to make better citizens instead of making money. Money can be earned by starting business. It’s time to abolish the industrialized education so that all the people can benefit from real education.
小題2:Concrete measures should be taken to lessen the students’ heavy burden. Not empty talks but concrete and solid policies can guarantee all the students grow soundly.
小題3:My parents are farmer-turned workers. I think we should be treated equally with the local children. We should have equal chance to go to both the local public schools and take the national college entrance exam rather than go back to our native places. 
小題4:School choice has become a serious educational problem. To solve this problem, we must stick to the balanced development. The government should offer more support to weak schools and have all the teachers exchange the round hillock work among all the schools.
小題5:The government’s unwillingness to spend enough money on education makes key schools turn to parents for money to build new buildings and increase teachers’ income, widening the gap between key schools and common schools. Therefore, in order to realize the balance of education, the government should offer more help to weak schools.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

下面文章中有5處需要添加小標(biāo)題。請(qǐng)從以下選項(xiàng)（A、B、C、D、E和F）中選出符合各段意思的小標(biāo)題，并在答題紙上將相應(yīng)選項(xiàng)的標(biāo)號(hào)涂黑。選項(xiàng)中有一項(xiàng)是多余選項(xiàng)。
A. Network.
B. Do things alone.
C. Become a local.
D. Join a gym or club.
E. Join a Business Group
F. Be polite to People You Meet
Moving to a new city can be both exciting and scary. Whether you are moving for a job, school or just to start over somewhere new, it can function as a fresh start. However, leaving behind old friends and finding new ones is not always easy. Maintaining a positive attitude and being open to new situations and people will make the adjustment easier.
小題1:________  
Trying new things will always put you in the position to run into new people. However, chances are, if you are by yourself instead of with a group of friends, other people will be more comfortable approaching you because they are less likely to feel as though they are bothering you or intruding. Go for walks by yourself, read a book in the park or have dinner at a restaurant alone. Doing things alone can also make you appear confident and interesting to others.
小題2:________  
Visit the same coffee shops or restaurants as often as possible. Talk to the employees and be friendly. Over time, the people that work there will recognize you and you can build relationships with them that way. This can also help you feel like you blend in and belong in your new neighborhood. Ask the employees for suggestions on things to do. They are great resources to find out the latest activities and events happening in your city, and they may even join you.
小題3:________   
You will not meet new people sitting in your house, so you will want to put yourself in situations with other people. Joining a gym, club or other social group can be a low pressure way to meet new people who have the same interests as you. Moving to a new city is a great time to try a new activity you are interested in, such as yoga or martial arts.
小題4:________ 
If you moved for a job or school, you will be surrounded by new people. Even if they are not necessarily the type of people you would normally be friends with, try to keep an open mind. Common interests provide the start of many wonderful friendships. Your coworkers or fellow students will likely be able to introduce you to other people you may get along with as well.
小題5:________     
Sites like Linked In and Yahoo offer several online forums (論壇) that can help expand networking opportunities. You could become friends with someone through one of the online discussions and then meet in person later. Linked In lists several groups it feels you might enjoy. Get involved with the groups that meet in person with things like business book groups, networking events, or social mixers. To join a Yahoo group, click on “groups,” then “business and finance.” Type in the name of your city in the search screen, and scroll through the list of local groups that appear.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

根據(jù)短文內(nèi)容,從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng).選項(xiàng)中有兩項(xiàng)為多余選項(xiàng).
Kids' health: Four steps for fighting stress
Everybody gets stressed from time to time. 1 Some ways of dealing with stress
- like screaming or hitting someone - don't solve（解決）much. But other ways, like talking  to someone you trust, can lead you to solving your problem or at least feeling better.
Try taking these four steps the next time you are stressed:
(1)   Get support. When you need help, reach out to the people who care about you. Talk to a trusted adult, such as a parent or other relatives. 2 They might have had similar problems, such as dealing with a test, or the death of a beloved pet.
(2)   Don't take it out on yourself. Sometimes when kids are stressed and upset they take it out on themselves. Oh, dear, that's not a good idea. Remember that there are always people to help you. Don't take it out on yourself. 3
(3)   Try to solve the problem. After you're calm and you have support from adults and friends, it's time to get down to business. 4Even if you can't solve it all, you can solve a piece of it.
(4)   Be positive. Most stress is temporary (暫時(shí)的). Remember stress does go away, especially when you figure out the problem and start working on solving it.
These steps aren't magic, but they do work. And if you can stay positive as you make your way through a tough time, you'll help yourself feel better even faster. 5
A．Ask for a helping hand to get you through the tough situation.
B． Notice your friends' feelings and find a way to help them.
C． Different people feel stress in different ways.
D．Ah, it feels so good when the stress is gone.
E.  You need to figure out what the problem is.
F.  And don't forget about your friends.
G. Then, find a way to calm down.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

— Susan, go and join your sister cleaning the yard.
— Why ___? John is sitting there doing nothing.
A．himB．he
C．ID．me

查看答案和解析>>

同步練習(xí)冊(cè)答案