Science and technology have __________ in important ways to the improvement of agricutural production.
A．a(chǎn)ttachedB．a(chǎn)ssistedC．contributedD．witnessed
C

試題分析：句意：科學(xué)技術(shù)在提高農(nóng)產(chǎn)品的產(chǎn)量上作出了重要的貢獻。attach …to 把… …附加在……上；assist幫助；contribute…to作貢獻于；witness見證。故選C。
考點：考查名詞在語境中的應(yīng)用辨析。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：改錯題

I was angry about the act of dishonesty in the exams. I’m not saying that I’m a good student or I’ve never cheated. I once wrote the answer in my hand for a history test but , unlucky, was caught by my teacher. Because she was one of my most favorites, there were no words to describe how sorry I felt at once. I thought cheat would help me keep my straight A’s. Little did I know that I was hurting not only herself but also my teacher. From this lesson I know teacher want students to succeed by learning on their own and do the best they can, not by cheating.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Despite such a big difference in the __________ towards what one eats, there is no doubt that people in the West regard the Chinese food as something special.
A．sightB．ideaC．a(chǎn)ttitude D．point

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

請認(rèn)真閱讀下列短文,并根據(jù)所讀內(nèi)容在文章后表格中填入最恰當(dāng)?shù)膯卧~。注意：每空一詞。
Prepackaged, mass-produced snack foods are hugely popular in grocery stores around the world. Many people are accustomed to choosing snack foods in grocery stores.
The first problem with packaged snack foods like cookies, crackers, and other bite-sized options is that they are often loaded with unhealthy materials. The reason for this is fairly easy to understand. Mass-produced foods need to be uniform in color, taste and so on. In order to achieve this uniformity, snack food producers use sugar, salt, and other chemical preservatives (防腐劑) and coloring materials in large amounts. These materials contribute to a rather unhealthy food.
In addition to requiring uniformity of taste and appearance, mass-produced snack foods like potato chips and candies need to be shelf stable. Preservatives and complex packaging make products shelf stable, but this stability and non-perish ability (抗腐性) often come at the expense of nutrition.
One reason that pre-made snacks are so popular in grocery stores is their prices. Food producers can keep costs down by using established production facilities and processes to quickly produce a huge amount of food. Shoppers are drawn to what they see at low prices.
People who are interested in improving the quality of their snacking can use magazines, books, and the Internet to discover a lot of healthy snacking tips and ideas. Even television shows about health and food sometimes talk about healthy snacking alternatives. Some healthy snacks, like fresh fruit, require no preparation at all.
Once people are aware of the drawbacks of clearly cheap and easy snack foods, they can start turning to better options. Soon, perhaps, the old and unhealthy snack options will no longer be profitable for food producers.
Title: Prepackaged, mass-produced snack foods
Fact
Prepackaged, mass-produced snack foods are well 小題1: ________ around the world.
小題2: _______
?Having preservatives, coloring materials and 小題3:________  packaging
? Having uniformity of 小題4:________ and appearance
? Being shelf stable
? Being at low 小題5: ________
Problems
? 小題6: ________ unhealthy materials
? Being shelf stable and non-perishable leading to some nutrition
小題7:________
Measures
?Discover healthy snacking tips and ideas by 小題8:________ magazines, books, the Internet and television shows.
Conclusion
? People will turn to better options once 小題9: _______ the drawbacks of cheap and easy snack foods.
? The old and unhealthy snack foods will no longer bring 小題10: _______ to food producers.
 

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

— David hasn’t come yet.
—I think he will ______ soon, for he means what he says.
A．turn onB．turn offC．turn downD．turn up

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Being able to speak but not write is like living in a(n)__________ mansion and never leaving one small room.
A．vitalB．enormousC．moderateD．visible

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

_________ by the superstars on television, the young athletes trained hard and played intensely.
A．ImitatedB．ImposedC．InsuredD．Inspired

查看答案和解析>>

科目：高中英語 來源：不詳 題型：改錯題

假定英語課上英語老師要求同桌之間交換修改作文，請你修改你同桌的以下作文。
文中共有10處語言錯誤，每句中最多有兩處。每處錯誤僅涉及一個單詞的增加、刪除或修改。
增加：在缺詞處加一個漏字符號（∧），并在其下面寫出該加的詞。
刪除：把多余的詞用斜線（\）劃掉。
修改：在錯的詞下劃一橫線，并在該詞下面寫出修改后的詞。
注意：1、每處錯誤及其修改均僅限一詞；
2、只允許修改10處，多者（從第11處起）不計分。
I went shopping in the center of the city yesterday afternoon. It was six o’clock before I was going home by bus. The bus was full of passenger, all of whom kept silent. A mother with her little son were sitting nearby. All of a sudden, the son cried loudly. The mother tries to do what she could make him stop crying. However, the son went on crying. After a long time, a man seating next to the mother said angrily, “Why don’t you give the child what she wants.” The mother answered quiet, “I would if I could, and what he wants is your hat.” Hearing of this, all the passengers burst into laughter.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

—How do you _____ your reading speed?
—The speed is measured by how many words per minute you can read.
A．calculateB．practiseC．evaluateD．ensure

查看答案和解析>>

同步練習(xí)冊答案