閱讀理解。

Nowadays more and more people are talking about genetically modified foods ( GM foods). GM foods develop from genetically modified organisms (有機體), which have had specific changes introduced into their DNA by genetic engineering techniques. These techniques are much more precise where an organism is exposed to chemicals to create a non-specific but stable change. For many people, the high-tech production raises all kinds, of environmental, ethical(倫理的), health and safety problems. Particularly in countries with long farming traditions, the idea seems against nature.

In fact, GM foods are already very much a part of our lives. They were first put on the market in 1996. A third of the corn and more than half the cotton grown in the US last year was the product of biotechnology, according to the Department of Agriculture. More than 65 million acres of genetically modified crops will be planted in the US this year. The genetic genie is out of the bottle.

However, like any new product entering the food chain, GM foods must be subjected to careful testing. In wealthy countries, the debate about biotech is not so fierce by the fact that they have a large number of foods to choose from, and a supply that goes beyond the needs. In developing countries desperate to feed fast-growing and under fed populations, the matter is simpler and much more urgent: do the benefits of biotech outweigh the risks?

The statistics on population growth and hunger are disturbing. Last year the world’s population reached 6 billion. The UN states that nearly 800 million people around the world are unhealthy. About 400 million women of childbearing age don’t have enough iron, which means their babies are exposed to various birth defeats. As many as 100 million children suffer from vitamin A deficiency, a leading cause of blindness.

How can biotech help? Genetic engineering is widely used to produce plants and animals with better nutritional values. Biotechnologists have developed genetically modified rice and they are working on other kinds of nutritionally improved crops. Biotech can also improve farming productivity in places where food shortage are caused by crop damage attributable to drought, poor soil and crop viruses.

1.The passage mainly talks about _______.

A. the world’s food problem

B. the development in biotech

C. the genetically modified foods

D. the way to solve food shortage

2.According to the passage, GM foods ________.

A. will replace naturally grown foods

B. are far better than naturally grown foods

C. may help to solve the problem of poor nutrition

D. can cause serious trouble in developing countries

3.The underlined sentence “The genetic genie is out of the bottle.” in paragraph 2 probably means that _______.

A. GM foods are available everywhere

B. the technology in producing GM foods is advanced

C. genetic technology may have uncontrollable powers

D. genetic technology has come out of laboratories into markets

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：2015-2016學(xué)年山西陽高縣第一中學(xué)高一下期末英語試卷（解析版） 題型：閱讀理解

The Wizarding World(魔法世界) of Harry Potter theme park will open in Florida in 2009,and will provide attractions and rides based on places from the Harry Potter books.

The novels’ author JK Rowling has already given her blessing to the project. She said,“The plans I’ve seen look unbelievably exciting, and I don’t think fans of the books or films will be disappointed.”

Stuart Craig, the man in charge of the design of the park, is an Oscar-winning production designer who worked on the Harry Potter films so it should be faithful(忠實的) to JK Rowling’s vision.

Stuart Craig said, “Our primary goal is to make sure this experience is an authentic extension(原著的延伸) of Harry Potter’s world as it is portrayed in the books and films.”

Visitors to the park will be able to explore some of their favourite places from the book such as the village of Hogsmeade, the Forbidden Forest and, of course, Hogwarts Castle, where Harry goes to school.

Although fans can look forward to a holiday in the Harry Potter theme park, many will be saddened by the fact that the best-selling series (系列)is now drawing to a close.

The final instalment(分期連載的一部分) in the series, Harry Potter and the Deathly Hallows, will be published on 21 July, and to mark the event JK Rowling is to read extracts(摘錄) from the book to a select audience at midnight on the day of publication.

Rowling has announced that two characters die in the final book, but has not revealed(透露) if Harry is one of them so fans will have to wait to find out the fate of their magical hero.

1.What’s the passage mainly about?

A. A new book about Harry Potter.

B. A theme park about Harry Potter.

C. What people will see in the theme park.

D. Something about Harry Potter.

2.What will people see in the theme park?

A. Some of the places in the book.

B. Harry Potter and most of the characters.

C. How film Harry Potter was made.

D. The ending part of the magical story.

3.What’s meaning of the underlined word “portrayed” mean in the fourth paragraph?

A. Explored. B. Saddened. C. Described. D. Opened.

4.What’s the novel’s author JK Rowling’s attitude to the theme park?

A. Not as good as the book.

B. It will be well received.

C. Not satisfied with the places shown in the park.

D. Saddened.

查看答案和解析>>

科目：高中英語 來源：2016年高考英語一輪復(fù)習(xí)新人教版選修1第4單元檢測英語試卷（解析版） 題型：閱讀理解

閱讀理解。

When times get tough, we all look for ways to cut back. When we’re hungry, we eat at home instead of going out. We take buses instead of taxis. And we wear our old designer jeans just a few months longer. With college expenses at all-time highs, high school students are eager to do anything to cut the cost of a university education.

One cost-cutting proposal is to allow college students to get a bachelor’s degree in three years instead of four. Educational institutions have been actively exploring ways to make the learning process more efficient. But there’s a question: Would the quality of undergraduate(本科生)education suffer? Few US universities have formally approved a “three-year degree” model.

I doubt that mainstream North American colleges will carry out a three-year curriculum(課程) any time soon. For one thing, most universities already allow highly qualified students to graduate early by testing out of certain classes and obtaining a number of college credits(學(xué)分). In addition, at famous universities, the committee who determine which courses are required and which courses are electives are unlikely to suddenly “throw out” one quarter of the required credits. Professors will resist “diluting(稀釋)” the quality of the education they offer.

In my opinion, a quality four-year education is always superior to a quality three-year education. A college education requires sufficient time for a student to become skilled in their major and do coursework in fields outside their major. It is not a good idea to water down education, any more than it’s not a good idea to water down medicine. If we want to help students find their way through university, we should help them understand early on what knowledge and skills they need to have upon graduation. We should allow students to test out of as many courses as possible. We should give them a chance to earn money as interns(實習(xí)生)in meaningful part-time jobs that relate to their university studies, such as the five-year co-op program at Northeastern University.

1.The first paragraph serves as a(n)________．

A. explanation B. definition

C. introduction D. comment

2.We can learn from the passage that ________.

A. most American universities are against the “three-year degree” model

B. many famous US universities are considering adopting the “three-year degree” model[

C. professors are willing to accept the “three-year degree” model

D. the “three-year degree” model can make college learning more efficient

3.In most US universities，________.

A. college students are offered the co-op program

B. electives’ credits make up one quarter of the required credits

C. all students are required to finish four-year education before graduation

D. some excellent students can graduate ahead of time

4.We can infer that________.

A. the author is a college professor

B. the author thinks the cost of a university education is too high for people to afford

C. the author considers the university education quality very important

D. the author pays special attention to the all-round development of college students

5.Which of the following can be the best title?

A. It’s time to shorten the learning process

B. Best learning takes place over time

C. University education should be watered down

D. College education calls for reform

查看答案和解析>>

科目：高中英語 來源：2015-2016學(xué)年新疆石河子市高一下期末英語試卷（解析版） 題型：閱讀理解

One day when I was 12, my mother gave me an order: I was to walk to the public library, and borrow at least one book for the summer. This was one more weapon for her to defeat my strange problem — inability to read.

In the library, I found my way into the “Children’s Room.” I sat down on the floor and pulled a few books off the shelf at random. The cover of a book caught my eye. It presented a picture of a beagle. I had recently had a beagle, the first and only animal companion I ever had as a child. He was my secret sharer, but one morning, he was gone, given away to someone who had the space and the money to care for him. I never forgot my beagle.

There on the book’s cover was a beagle which looked identical to my dog. I ran my fingers over the picture of the dog on the cover. My eyes ran across the title, Amos, the Beagle with a Plan. Unknowingly, I had read the title. Without opening the book, I borrowed it from the library for the summer.

Under the shade of a bush, I started to read about Amos. I read very, very slowly with difficulty. Though pages were turned slowly, I got the main idea of the story about a dog who, like mine, had been separated from his family and who finally found his way back home. That dog was my dog, and I was the little boy in the book. At the end of the story, my mind continued the final scene of reunion, on and on, until my own lost dog and I were, in my mind, running together.

My mother’s call returned me to the real world. I suddenly realized something: I had read a book, and I had loved reading that book. Everyone knew I could not read. But I had read it. Books could be incredibly wonderful and I was going to read them.

I never told my mother about my “miraculous” (奇跡般地) experience that summer, but she saw a slow but remarkable improvement in my classroom performance during the next year. And years later, she was proud that her son had read thousands of books, was awarded a PhD in literature, and authored his own books, articles, poetry and fiction. The power of the words has held.

1.The author’s mother told him to borrow a book in order to_____.

A. help cure him of his reading problem

B. let him spend a meaningful summer

C. encourage him to do more walking

D. make him learn more about weapons

2.The book caught the author’s eye because_____.

A. it contained pretty pictures of animals

B. he found its title easy to understand

C. it reminded him of his own dog

D. he liked children’s stories very much

3.Why could the author manage to read the book through?

A. He was forced by his mother to read it.

B. He identified with the story in the book.

C. The book told the story of his pet dog.

D. The happy ending of the story attracted him.

4.What can be inferred from the last paragraph?

A. The author has had happy summers ever since.

B. The author’s mother read the same book.

C. The author’s mother rewarded him with books.

D. The author has become a successful writer.

查看答案和解析>>

科目：高中英語 來源：2015-2016學(xué)年新疆石河子市高二下期末英語試卷（解析版） 題型：閱讀理解

Dearest Clare,

As I write this, I am sitting at my desk in the back bedroom looking out at your studio across the backyard full of blue evening snow, everything is smooth and crusty with ice, and it is very still. It's one of those winter evenings when the coldness of every single thing seems to slow down time, like the narrow center of an hourglass which time itself flows through, but slowly, slowly. I had a sudden urge, tonight, here in the house by myself to write you a letter. I suddenly wanted to leave something, for after. I think that time is short, now. I feel as though all my reserves, of energy, of pleasure, of duration, are thin, small. I don't feel capable of continuing very much longer. I know you know.

If you are reading this, I am probably dead. But you know: you know that if I could have stayed, if I could have gone on, that I would have seized every second: whatever it was, this death, you know that it came and took me, like a child carried away by goblins (妖精).

Clare, I want to tell you, again, I love you. But I hate to think of you waiting. I know that you have been waiting for me all your life, always uncertain of how long this patch of waiting would be. Ten minutes, ten days.A month. What an uncertain husband I have been, Clare, like a sailor. Please, Clare. When I am dead, stop waiting and be free. Of me—put me deep inside you and then go out in the world and live. Love the world and yourself in it, move through it as though the world is your natural element.

After my mom died she ate my father up completely. She would have hated it. Every minute of his life since then has been marked by her absence, every action has lacked dimension because she is not there to measure against. And when I was young I didn't understand, but now, I know, how absence can be present.

If I had to live on without you I know I could not do it. But I hope, I have this vision of you walking, with your shining hair in the sun. I have not seen this with my eyes, but only with my imagination, that makes pictures, that always wanted to paint you, shining; but I hope that this vision will be true, anyway.

Clare, there is one last thing, and I have hesitated to tell you, because I'm afraid that telling might cause it to not happen and also because I have just been going on about not waiting and this might cause you to wait longer than you have ever waited before. But I will tell you in case you need something, after.

Last summer, I was sitting in Kendrick’s waiting room when I suddenly found myself in a dark hallway in a house I don’t know. At the end of the hall I could see a rim of light around a door, and so I went very slowly and very quietly to the door and looked in. The room was white, and lit with morning sun. At the window, with her back to me, sat a woman, wearing a coral-colored cardigan sweater, with long white hair all down her back. She had a cup of tea beside her, on a table. I must have made some little noise, or she sensed me behind her...she turned and saw me, and I saw her, and it was you, Clare, this was you as an old woman, in the future. It was sweet, Clare, it was sweet beyond telling. I won’t tell you any more, so you can imagine it. We will see each other again, Clare. Until then, live, fully, present in the world, which is so beautiful.

It’s dark, now, and I am very tired. I love you, always. Time is nothing.

Henry

1.Why did Henry mention the snow and ice in the first Paragraph?

A. To indicate the death is approaching.

B. To illustrate that he has an easy mind.

C. To express how urgent he was to write the letter.

D. To show the weather conditions when he wrote the letter.

2.From Paragraph 4 we can know that ________.

A. his mother died soon after Henry was born

B. the living shouldn’t miss the dead too much

C. his mother had a narrow affection for his father

D. his father lived in the shadow of his mother’s absence

3.By describing what he found in Kendrick’s waiting room, Henry intended to tell Clare that ________.

A. he hoped she would wait for him forever

B. his health was worsening step by step

C. she should stop waiting and be free to live

D. she would be more beautiful when she was old

4.Which of the following can best describe Henry?

A. Considerate. B. Generous. D. Explicit. D. Rigid.

查看答案和解析>>

科目：高中英語 來源：2016年高考英語一輪復(fù)習(xí)新人教版選修4第4單元練習(xí)英語試卷（解析版） 題型：完形填空

完形填空。

I'm someone who never went to university but always thought about it. The only way I was listening to my children talk about their class and all the interesting things they were . University was just a life-long of mine. I just turned sixty-four years old in September. I still thought about that old dream one day when there was an Advanced-Age at the local university. I decided to .

The day finally arrived — my first day of school. As I there, my mind was filled with thoughts, "What am I doing? I'm not smart enough to go to university. The will laugh when they see me in class. I probably won't live long enough to get a . Maybe I should just turn the car around and go home."

Then, , I saw it! A large billboard on the side of the road with a picture of Kermit the Frog. I a little and read the words next to his picture. "Live your dreams." Was Kermit speaking me? I didn't turn the car around.

I drove a little on up the highway and there was another . This one had a picture of Albert Einstein with his tongue out. A line read, "As a student, he was no Einstein." And there was a word in red, "Confidence". A new attitude was inside me.

I was now the gate of the university and there still another billboard. This one showed a photograph of a proud in a cap and gown. Under the picture was her , Nola Ochs, aged 95. Oldest University Graduate. Below it was the words, "Live Life". At that moment, my outlook changed completely.

1.A. acquired B. consulted C. contained D. attended

2.A. learning B. taking C. teaching D. using

3.A. goal B. advice C. dream D. idea

4.A. since B. until C. after D. before

5.A. program B. system C. theme D. process

6.A. turn up B. keep up C. sign up D. make up

7.A. walked B. drove C. ran D. stepped

8.A. active B. attractive C. negative D. optimistic

9.A. tutors B. kids C. professors D. fellows

10.A. degree B. praise C. skill D. reputation

11.A. finally B. immediately C. exactly D. suddenly

12.A. sped up B. slowed down C. cut down D. went up

13.A. higher B. lower C. closer D. further

14.A. billboard B. picture C. portrait D. cartoon

15.A. breaking B.sticking C pulling. D. giving

16.A. arriving B. forming C. building D. making

17.A. approaching B. arriving C. squeezing D. staying

18.A. lay B. lived C. stood D. sat

19.A. man B. teenager C. youth D. woman

20.A. motto B. name C. age D. hobby

查看答案和解析>>

科目：高中英語 來源：2016年高考英語一輪復(fù)習(xí)新人教版選修4第4單元檢測英語試卷（解析版） 題型：七選五

根據(jù)短文內(nèi)容，從短文后的選項中選出能填入空白處的最佳選項。選項中有兩項為多余選項。

Some Ways to Deal With Hardship and Pain in Life

Regardless of the difficulties you may face, it’s getting back up and moving forward that counts the most when you need to deal with hardship.1.

Write or talk about how you feel

Keeping my feelings to myself used to make me feel lonely, but when I found someone who actually cared about me, it became natural to share how I felt with him and that contributed to my ability to overcome troublesome situations. 2. Although talking to strangers about your issues may seem crazy, it actually isn’t.

3.

It is said that running away from your problems will never help, and though that’s partially true, it doesn’t mean that you need to make yourself go so deeply into a situation that you run out of air to breathe and lose the ability to weigh the pros and cons of your choices. That happens more than we like to admit, which is why it’s important to separate yourself from a situation long enough to think clearly without having people hanging over your shoulders.

Remind yourself that you’re not alone

Regardless of who or what you depend on, you need to remind yourself that you are not alone; you have people who do care. 4. Sometimes it’s strangers who may share the same feelings as you do. Think about it—you may not know any of these readers personally but they could be in the exact same situation as you, so in fact, no one is truly alone.

Accept the results and get back up again

5. Whether the results of your choices proved to be helpful or not, it’s time for you to accept them and get back up. This time you have a new experience to add to your book of life so the next time something tries to knock you down, it won’t be easy because you will be strong and determined to push forward. Life will go on, time will never stand still, and it rests upon you to make the right decision of moving forward.

A. Separate yourself from the situation.

B. Tell yourself to accept the hardship.

C. Finally, it’s time to accept what has happened.

D. All in all, remember that life is short.

E. Not only did I speak to him about how I felt, but I decided to blog about it.

F. Here are some things I've tried just to help me believe in a brighter future and get over a tough situation.

G. Even if it’s just one person, that’s enough to give you reason to remind yourself that you will never truly be alone.

查看答案和解析>>

科目：高中英語 來源：2016年高考英語一輪復(fù)習(xí)新人教版選修1第3單元練習(xí)英語試卷（解析版） 題型：書面表達

假設(shè)你叫李華，將作為高三畢業(yè)生代表，在畢業(yè)晚會上用英文做簡短的告別演講。請根據(jù)以下要點寫一份演講稿。

要點：

1. 高中生活的收獲；

2. 對老師的感謝；

3. 對同學(xué)的祝福。

注意：

1. 詞數(shù)100左右；

2. 文中不能出現(xiàn)考生的相關(guān)信息；

2. 開頭已為你寫好，開頭不計入總詞數(shù)。

My teachers and fellow students,

查看答案和解析>>

科目：高中英語 來源：2015-2016學(xué)年甘肅天水一中高一下期末英語卷（解析版） 題型：語法填空

語法填空

Every country shares things _________ common: we value family and laughter, cherish food and health, and celebrate large _________ (festival) and traditions. Yet within the similar things we share, there are unique parts of each country. One of characteristics that are famous of British people _________ (be) their sense of humor, particularly self-mockery (自嘲). This is a type of humor that criticizes and undervalues oneself. For example, a fat person may joke: “I am on a new sea food diet. If I see food, I eat it.” This is _________ well-known self-mockery joke. It’s difficult why self-mockery _________ (tie) to the British people. But every nation’s sense of humor comes from its culture and history. It could come from another British characteristic, modesty, _________ (mean) not talking openly about your skills. This seems to be something that is similar to people in China, _________ modesty plays a big part in daily life. It also acts as a defense of our self-respect by playing down our skills, this can _________ (less) the chance of people criticizing us. Another possible reason is _________ the British people do not take themselves too _________ (serious).

查看答案和解析>>

同步練習(xí)冊答案