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Yellow flowers always remind me ___ my childhood in the countryside.
A.in
B.of
C.to
D.from
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A.in
B.of
C.to
D.from
如果结果不匹配，请 联系老师 获取答案
更多“Yellow flowers always remind m…”相关的问题
As we know, sunlight is formed by seven different kinds of colored light. The wave length of each light changes, so the quantity of heat in each light changes, too. Flowers, especially their petals (花瓣) , are very weak and easy to the harm caused by high temperature. Black flowers can take in all the light waves, which cause the flowers to dry up in a high temperature. So the black flowers can hardly continue their lives. But red flowers, orange flowers and yellow ones can protect themselves from sunlight by reflecting (反射) the red light, orange light and yellow light, each of which has a large quantity of heat.
That is why red, orange and yellow flowers are very common in nature while black flowers are so unusual.
We can hardly find black flowers because ______.
A．they are easy to be eaten by animals
B．there are no black flowers in the world
C．the petals of black flowers are too strong
D．the light waves make the flowers dry up
听力原文： Most flowers in nature are red, orange and yellow. If we have seen a black flower, it's a chance in a million. Researchers have made research on more than four thousand kinds of flowers and discovered that only eight of them are black.
As we know, sunlight is formed by seven different colored lights. The wave length of each light is different, so the quantity of heat in each light is also different. Flowers, especially their petals are easy to be harmed by high temperature.
Black flowers can take in all the light waves, which cause the flowers to dry up in a high temperature. So black flowers can rarely survive sunlight. But red flowers, orange flowers and yellow flowers can protect themselves from sunlight by reflecting the red light, orange light and yellow light, each of which has a large quantity of heat.
(30)
A．Only eight of the fourteen thousand kinds of flowers are black.
B．Only eight of the four thousand kinds of flowers are black.
C．The chance that we see black flowers is one-5000th.
D．The chance that we see black flowers is one 4000th.
What's on the desk？
A．Some books.
B．Some white flowers.
C．Some red and yellow flowers.
A．Brett won't try to get revenge.
B．Brett won't be angry anymore.
C．Brett will not always be so busy.
D．Brett will have forgotten the woman's words.
A．Ignorance of the signed agreement can be excused.
B．The security deposit cannot always be fully returned.
C．A good roommate is more desirable than an apartment.
D．Keeping pets or smoking in the apartment is prohibited.
What are the students going to do during this class period？
A．Watch a slide show about trees.
B．Learn how to prevent Dutch elm disease.
C．Study the history of the campus buildings and grounds.
D．Look at examples of trees on campus.
Paragraph 2 indicates that______.
A．most of man's employment is from fishing
B．man can always turn to fishing for employment
C．forty percent of Chileans live on fishing boats or ships
D．fishing has been the biggest industry in Newfoundland
【C1】
A．away
B．up
C．out
D．around
Lured by generous new subsidies to develop alternative energy sources - and a measure of concern about the future of the planet - European farmers are plunging into growing crops that can be turned into fuels meant to produce fewer emissions than gas or oil when burned. They are chasing after their counterparts in the Americas who have been cropping for biofuel for more than five years.
"This is a much-needed boost to our economy, our farms," said Marcello Pini, a farmer, standing in front of the sea of waving yellow flowers he planted for the first time this year. "Of course we hope it helps the environment, too."
In March, the European Commission, disappointed by the slow growth of thebiofuels industry in Europe, approved a directive that included a "binding target" requiring member states to use 10 percent biofuel for transport by 2020 - the most ambitious and specific goal in the world.
Most EU states are currently far from achieving the target, and are introducing new incentives and subsidies to boost production.
As a result, bioenergy crops have now replaced food as the most profitable crop in a number European countries. In this part of Italy, for example, the government guarantees the purchase of biofuel crops at €22 per 100 kilograms, or $13.42 per 100 pounds - nearly twice the €11-to-€12 rate per 100 kilograms of wheat on the open market last year. Better still, European farmers are allowed to plant biofuel crops on "set-aside" fields, land that EU agriculture policy would otherwise require them to leave fallow to prevent an oversupply of food.
But an expert panel convened by the UN Food and Agriculture Organization this month pointed out that the biofuels boom produces both benefits as well as tradeoff and risks - including higher and wildly fluctuating global food prices. In some markets grain prices have nearly doubled because farmers are planting for biofuels,
"At a time when agricultural prices are low, in comes biofuel and improves the lot of farmers and injects life into rural areas," said Gustavo Best, an expert at the United Nations Food and Agriculture Organization in Rome. "But as the scale grows and the demand for biofuel crops seems to be infinite, we&39;re seeing some negative effects and we need to hold up a yellow light."
Josette Sheeran, the new head of the UN World Food program, which fed nearly 90 million people in 2006, said that biofuels created new dilemmas for her agency. "An increase in grain prices impacts us because we are a major procurer of grain for food. So biofuels are both a challenge and an opportunity." In Europe, the rapid conversion of fields that once grew wheat or barley to biofuel oils like rapeseed is already leading to shortages of ingredients for making pasta and brewing beer, suppliers say. That could translate into higher prices in supermarkets.
"New and increasing demand for bioenergy production has put high pressure on the whole world grain market," said Claudia Conti, a spokeswoman for Barilla, one of the largest Italian pasta makers. "Not only German beer producers, but Mexican tortilla makers have see the cost of their main raw material growing quickly to quickly to historical highs."
For some experts, more worrisome is the potential impact to low-income consumers from the displacement of food crops by bioenergy plantings. In the developing world, the shift from growing food to growing more lucrative biofuel crops destined for richer countries could create serious hunger and damage the environment in places where wild land is converted to biofuel cultivation, the FAO expert panel concluded.
But officials at the European Commission say they are pursuing a measured course that will prevent the worst price and supply problems that have plagued American markets.
"We see in the United States farmers going crazy growing corn for biofuels, but also producing shortages of food and feed," said Michael Mann, a commission spokesman. "So we see biofuel as a good opportunity - but it shouldn&39;t be the be-all and end-all for agriculture."
In a recent speech, Mariann Fischer Boel, the EU agriculture and rural development commissioner, said that the 10 percent EU target was "not a shot in the dark," but rather carefully chosen to encourage a level of biofuel industry growth that would not produce undue hardship for the Continent&39;s poor. Over the next 14 years, she calculated, it would push up would raw material prices for cereal by 3 percent to 6 percent by 2020, while prices for oilseed may rise between 5 percent and 18 percent. But food prices on the shelves would barely change, she said.
听力原文： OK, in the last class we talked about the classification of trees and we ended up with-a basic description of angiosperm. You remember that those are plants with true flowers and seeds that develop into fruits. The common broadleaf trees we have on campus fall into this category. But our pines don't. Now ! hope you all followed my advice and wore comfortable shoes because as I said today we are going to do a little field study. To get started let me describe a couple of broadleaf trees we have in front of us. I'm sure you've all noticed that this big tree next to Brett Hall. It's a black walnut that must be 80 feet tall. As a matter of fact there is a plaque identifying. It is the tallest black walnut in the state. And from here we can see the beautiful archway of trees at the commons. They are American elms. The ones along the commons were planted when the college was founded 120 years ago. They have distinctive dark green leaves that look lopsided because the two sides of the leaf are unequal. I want you to notice the elm right outside the Jackson Hall. Some of the leaves have withered and turned yellow, maybe due to Dutch elm disease. Only a few branches seem affective so far but if this tree is sick it'll have to be cut down. Well, let's move on and I'll describe what we see as we go.
What are the students going to do during this class period？
A．Watch a slide show about trees.
B．Learn how to prevent Dutch elm disease.
C．Study the history of the campus buildings and grounds.
D．Look at examples of trees on campus.
