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问题 名词解释

叶色诊断法 diagnosis method of foliar color

答案

参考答案：

模拟植物叶色浓淡制成系列色卡等，作为测定叶色的比较标准，并与待测植物叶色比较判断植物营养状况的方法。

单项选择题


Passage One

Go Ahead—Cook with It
别怕—就用它来烹饪
It’s grapefruit season. From now through March, the golden orbs are ripe for the picking. And they’re not just for breakfast any more.
Hanging around on trees all about California: grapefruit—heavy with juice, tartly sweet, beguilingly perfumed．Round and yellow as happy faces or suns, they seem to ripe just as the general populace sinks into its annual round of post-holiday dietary self-chastisement.
Coincidence Perhaps. But we say run with it.
Look beyond the obvious salvo of half a grapefruit for breakfast attacked with a jagged spoon and you’ll find a marvelous fruit for peeling and eating out of hanD．There’s nothing like it for inducing simultaneous feelings of gastronomic piety and delight at recapturing a long-lost pleasure. It’s sensual: the aroma of essential oils as they spurt daintily from the pores of the thick skin, the ripping sound of the tenacious segments being pulled apart, the juice dripping down. And it’s delicious.
But don’t stop there. Cook with grapefruit. Use its juice to flavor sauces. Section and scatter it. Bake with it. Candy its peel. Grapefruit is milder and sweeter than lemon, but it can be used in many of the same ways—squeezed on grilled fish, made into a brightly flavored curD．And if you’re looking for gorgeous color, red grapefruit offers extra plate appeal.
The notion that red grapefruit is sweeter than white or yellow grapefruit is, however, a myth, according to citrus specialists. (The story grew out of a marketing campaign by Texas growers. ) Red grapefruits get their color from lycopene, which has health benefits (its an antioxidant)but does not affect flavor.
Sweetness is determined, rather, by the length of time the fruit has been hanging on a tree. A grapefruit picked in December isn’t as sweet as one picked in February, so if you have a tree, just pick fruit as needed．
If not, ask at your farmers market about the different varieties available, all of which have their fans. California reds include the medium-pink Rio Reds from the Caochella Valley and the Star Ruby from Central Valley (and Texas). Yellow Marsh is a familiar yellow variety and the Duncan, while not usually labeled as such in supermarkets, is a reliable white.
For those who don’t like the tartness of a true grapefruit, Oro Blanco—the half-grapefruit, half-acidless pummelo—is sweeter and can be used in salads.
Our salad of jicama strips, thinly sliced snow peas, fresh pea sprouts (available in Asian markets)and red grapefruit sections has an appealing crunch. Its delicately harmonious flavors are pulled together with a faintly sweet dressing of grapefruit juice, tarragon and mint.
The strikingly pink sauce of our baked halibut dish contrasts with the white flesh of the fish for an artful plate—and it’s easy to make. Before baking, marinate the halibut in grapefruit juice with garlic and thyme. Sauce it with a reduction of grapefruit juice combined with blood orange juice, which deepens the color and softens the flavor. Then whisk in bits of cold butter for silkiness.
A rich crust is a perfect foil for the tangy grapefruit curd filling in our pretty tartlets. Both grapefruit juice and lemon juice are used in the curd to focus the flavor; grapefruits zest enlivens the crust. Garnish them with whipped cream and candied grapefruit peel.
For cooking, select heavy fruit, which indicates juiciness. (If you’re making a batch of candied peel, however, lighter fruit will indicate more peel.) Before juicing, roll a grapefruit under your hand on the countertop to help extract the most juice. Avoid lumpy fruit, which may be over-ripe.
And finally, for those whose resolute January superegos care about such things, here’s a reassuring thought: Grapefruit is low in calories (40 to 60 each), high in vitamins C and A, and an excellent source of fiber. It contains no fat, sodium or cholesterol.
So peel away.

What is the meaning of "superegos" in the last but two paragraph

A．absolute selfishness of one’s character

B．personal likings

C．personal attentions

D．personal regrets
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单项选择题

礁糊秀

The most romantic time to arrive in Venice is at dusk on a winter’s day. Your water-taxi ride across the lagoon from the airport will catch the last velvety-grey streaks of daylight. You’ll arrive on the Grand Canal just as the upper windows of its palaces start to bloom with rose-coloured lamps or sparkle with chandeliers. In no other city does evening begin with such promise.

Strange, then, that Venice should be so emphatically not a night-time place. However mobbed it may have been in daylight, darkness falls with the abruptness of a hauled-down shutter. The crowds of Asian tourists and schoolkits milling around seem to vaporize. In a hundred closed cafes, the espresso machines give an expiring hiss, as if at last slipping off their shoes and wiggling their toes.

That is what makes Venice by night so magical, when the loudest sounds are those of footsteps and lapping water, and the modern world recedes so that in any Square or over any bridge, you wouldn’t be surprised to meet a hurrying figure in a cloak and buckled shoes; Casanova on his way to some assignation, perhaps.

St. Mark’s becomes an enchanted place, with pools of the day’s flood still underfoot and mist wreathing the cathedral. But "nightlife" seems nonexistent outside the weeks of carnival each February. In a city so stuffed with historical treasures, the lack of a living, modern culture is achingly apparent, especially after dark.

Venice’s only theatre of note, the Fenice, has only just reopened after almost a decade, following a fire. Clubs, discos, even cinemas are almost as hard to find as car parks. Nor is there the eating-out culture that governs the rest of Italy.

Venice is not usually regarded as a gourmet paradise. Even J G Links, author of the definitive, eccentric guidebook Venice for Pleasure, suggests it has few restaurants worth visiting outside the Cipriani hotel. As a rule, it’s best to avoid canalside establishments with their menus turisticos; look for places down alleys. Remember, this is rice, not pasta country, offering some of the best risotto you’re ever likely to eat.

When I first came here, aged 15, on a school trip, we were quartered in a girl’s convent school. Ever since, I’ve stayed at the Gritti Palace, on the Grand Canal, overlooking the Salute. Apart from its mixture of elegance and old-fashioned comfort, I have two reasons for loving this hotel. Alighting at its private landing stage completes the thrill of arriving in Venice by night. And it was here, 13 years ago, that Sue and I decided to get married and have our daughter.

Gondolas operate until well after dark. It can be doubly romantic, with the Grand Canal in pitch-darkness and silent but for the churn of water buses and scraps of operatic arias that some gondoliers still perform.

Latterly, Venice has been making more efforts to get a nightlife. There is a disco named Casanova near the railway station and a music bar, Piccolo Mondo, near the Accademia bridge. The city’s student population has created funkier areas around Campo Santa Margarita and in Cannaregio, the immigrant quarter to the north.

There is also street music after all the smart shops have closed and the only merchandise on offer is fake designer handbags, set out on the trestles used as walkways at times of flooD．Around one corner, you may come upon a countertenor in an anourak, singing Handel; around another, two men will be playing selections from Andrew Lloyd Webber on a vibraphone of water-filled glasses. You think that sounds totally naff I can tell you it sounded totally wonderful. Such is the alchemy of Venice by night.

There is a sentence in the second paragraph: "In a hundred closed cafes the espresso machines give an expiring hiss, as if at last slipping off their shoes and wiggling their toes. " How do you understand this sentence（）

A．It means that the coffee machines have been used for too much and cannot be used any longer.

B．It implies that the owners of these cafes are so tired that they just want to have a good rest.

C．It suggests that the owners of these cafes have lost their shoes and their toes feel painful with cold．

D．The coffee machines are going to stop working; it is just like what a person does before he goes to bed after a day’s hard work.
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