Question

    Across much of the United States, a warming climate has caused the early arrival of spring. This year is no exception. In parts of the Southeast, spring has arrived weeks earlier than usual and may turn out to be the warmest spring on record.

Apple trees blossoms in March and an earlier start to picnic season may seem harmless and even welcome.

1.

Rising temperatures in the springtime lead plants and animals to come alive. Across the United States and worldwide, climate has been changing over these years.2.

Records managed by the USA National Phenology Network and other organizations prove that spring has come earlier the long term.3.

Blueberries in Massachusetts have flowers three to four weeks earlier than in the mid-1800s. And over a recent 12-year period, over half of 48 bird species have been studied.4.

Warmer spring temperatures have also led bees, moths and butterflies to appear earlier than in recent years. Similarly, species like frogs and bears wake up from hibernation earlier in warm springs.5.When species that depend on one another don’t respond to changing conditions at the same time, the number of them will get smaller.

根据短文内容，从短文后选出能填入空白处的最佳选项。

A.It is affecting the arrival and interactions of plants, animals, insects and more.

B.All species don’t respond to warming the same way.

C.It shows that they arrived at their breeding(繁殖）grounds up to nine days earlier than before.

D.For example, the common yellow lily flowers come out nearly a week earlier in the Appalachian Mountain area than it did 100 years ago.

E.But the early arrival of springtime warmth has many downsides for the natural world and for humans.

Answer

1.E

2.A

3.D

4.C

5.B

【解析】

本文介绍了气候变暖导致了春天的提前到来。并通过例子说明它影响着植物、动物、昆虫等的到来和相互作用。

1.根据上文的叙述气候变暖导致了春天的提前到来。以及苹果树在三月份开花，野餐季节提前开始似乎无害，甚至是受欢迎的。这些是有利的因素。下文用but来转折，说明除了有利的还有不利的。此处选择But the early arrival of springtime warmth has many downsides for the natural world and for humans. 但春天的温暖提前到来，对自然界和人类都有许多不利因素。下文是对不利因素的解说。故选E。

2.根据下文的句子“Blueberries in Massachusetts have flowers three to four weeks earlier than in the mid-1800s. And over a recent 12-year period, over half of 48 bird species have been studied.”马萨诸塞州的蓝莓开花比19世纪中期提前了3到4周。在最近的12年里，48种鸟类中有一半以上被研究过。及句子“Warmer spring temperatures have also led bees, moths and butterflies to appear earlier than in recent years.”春季气温的升高也导致蜜蜂、蛾子和蝴蝶比近年来出现得更早。可知，这些是对植物、动物、昆虫等的影响。所以此处选择It is affecting the arrival and interactions of plants, animals, insects and more. 它影响着植物、动物、昆虫等的到来和相互作用。故选A。

3.根据下文的句子“Blueberries in Massachusetts have flowers three to four weeks earlier than in the mid-1800s.”马萨诸塞州的蓝莓开花比19世纪中期提前了3到4周。可知，这是举例子说明对植物的影响。可知，上文也要用例子来说明对植物的影响。此处选择For example, the common yellow lily flowers come out nearly a week earlier in the Appalachian Mountain area than it did 100 years ago. 例如，在阿巴拉契亚山区，普通的黄色百合花比100年前提前了近一周。故选D。

4.根据上文“And over a recent 12-year period, over half of 48 bird species have been studied.”在最近的12年里，48种鸟类中有一半以上被研究过。此处应该说明研究的结果。因此选择It shows that they arrived at their breeding(繁殖）grounds up to nine days earlier than before.这表明它们比以前提前九天到达它们的繁殖地。故选C。

5.根据下文“When species that depend on one another don’t respond to changing conditions at the same time, the number of them will get smaller.”当相互依赖的物种不能同时对变化的环境做出反应时，它们的数量就会变少。可知，这是物种对变暖的反应都不一样的结果。所以此处应该提到物种对变暖的反应都不一样。此处选择All species don’t respond to warming the same way.所有物种对变暖的反应都不一样。故选B。