The being of agriculture was a big step in human progress _______ which nothing could compare until our information age.?
A. in B. for?
C. with D. by?
科目:高中英語 來源: 題型:閱讀理解
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Fruit also makes up a flowering plant. It carries the seeds . The purpose of fruit is to protect a plant’s seeds and help them get spread about. Wind and water spread seeds .So do animals when they eat fruit and drop the seeds .
There are two main types of fruit: fleshy and dry. Fleshy fruits are soft and juicy , the way we usually think of fruits . Peaches ,plums ,and apples are all fleshy fruits . Dry fruits are thin and hard . Grains like wheat and rice , or nuts are dry fruits.
You’ve eaten seedless oranges and grapes . How can they be fruits? It’s because people have changed the way they grow fruit. They can now grow seedless fruit . Seedless fruit comes from special plants called hybrids(雜交生物體) . A hybrid is made by combining two varieties of a fruit to form a new variety . This hybrid grows and produces seeds . But the plants grown from these seeds are seedless . These plants cannot reproduce themselves.
A tomato is a vegetable , right? No , it’s actually a fruit . Other food we think of as vegetables—such as squash , peppers ,and eggplant—also are fruit . They’re fruit because they carry seeds and develop from flowers . Here’s another surprise . Scientists classify the tomato as a berry(漿果) . In addition , they don’t consider some fruits we call berries to be true berries because a berry is normally a type of fruit with a lot of seeds inside it . Technically , a strawberry , isn’t a berry , because it has its seeds on the outside . The red part is just the tip of the strawberry stem that’s enlarged.
Fruits are a source of nourishing(滋養(yǎng)) substances that keep us alive and healthy . For example , they contain many vitamins , especially vitamins A and C, and many minerals . They also provide fibre for a healthy digestive system and carbohydrates that the body needs to make energy.
Title: | |
Basic knowledge | Being of a flowering plant and carrying seeds. Protecting a plant’s seeds and helping spread them about. Mainly on wind , water and animals to spread. |
Fleshy fruit :Juicy and , like peaches , plums ,apples ,etc . Dry fruit : Thin and hard , like wheat ,rice , nuts ,etc . | |
Fruit seeds | Coming from a ,which is made by combining two kinds of fruit to form a new kind. |
Some surprises | Tomato , squash ,peppers and eggplant are fruits because they carry seeds and develop from . Some fruits like strawberry aren’t technically berries because they have seeds on the . |
Being to humans | Keeping people alive and . Providing vitamins , fiber and carbohydrates. |
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That ______ makes the heart grow fonder means the being away from someone you love makes you love them more.
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科目:高中英語 來源:2011-2012學年河北省高三9月月考英語試題 題型:單項填空
After Lincoln was made ___ president of the United States, he insisted on the slaves___. . A /; be set free B /; being set free C the; setting free D the ; being set free
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科目:高中英語 來源:2010屆高考英語二輪復習跟蹤測試:名詞專題 題型:單項填空
That ______ makes the heart grow fonder means the being away from someone you love makes you love them more.
A. presence B. absence C. shortage D. lack
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