英语听力：自然百科 黄石公园的夏天 Yellowstone—10

 As soon as she feels it is safe, she settles to suckle and reassure¹ them. 

 

Bison can shrug² off this sudden change in the weather; they are after all built to survive the Yellowstone winter.

 

But this tiny hummingbird³ is more vulnerable. Flowers damaged by snow will die, and the nectar the hummingbird needs goes with them. Hummingbirds⁴ must be resourceful to survive.

 

Bark wells dug by a sapsucker, a type of woodpecker, quickly fill with / sugar-rich sap as soon as the warm weather returns.

 

A little pilfering⁵ provides this hummingbird with the energy it needs until the new flower buds open. 

 

Summer moves quickly. By late June, the blizzards⁶ of a few weeks before seem/ a distant memory.

 

At last the summer is well enough established for this hummingbird to take the plunge⁷ and raise a brood.

 

1 reassure   

v.使放心，使消除疑虑

参考例句：

• This seemed to reassure him and he continued more confidently.这似乎使他放心一点，于是他更有信心地继续说了下去。
• The airline tried to reassure the customers that the planes were safe.航空公司尽力让乘客相信飞机是安全的。

2 shrug   

v.耸肩(表示怀疑、冷漠、不知等)

参考例句：

• With a shrug,he went out of the room.他耸一下肩，走出了房间。
• I admire the way she is able to shrug off unfair criticism.我很佩服她能对错误的批评意见不予理会。

3 hummingbird   

n.蜂鸟

参考例句：

• The hummingbird perches on a twig of the hawthorn.小蜂鸟栖在山楂树枝上。
• The hummingbird is the only bird that can fly backward.蜂鸟是唯一能倒退向后飞的鸟。

4 hummingbirds   

n.蜂鸟( hummingbird的名词复数 )

参考例句：

• Hummingbirds have discovered that nectar and pollen are very nutritious. 蜂鸟发现花蜜和花粉是很有营养的。
• Why do hummingbirds and gorillas both have backbones? 为什么蜂鸟和大猩猩都有脊骨？

5 pilfering   

v.偷窃（小东西），小偷( pilfer的现在分词 )；偷窃（一般指小偷小摸）

参考例句：

• He was caught pilfering. 他行窃时被抓个正着。
• Pilfering has stopped entirely since they put Angus in charge of the stores. 自从他们让安格斯掌管商店以来，小偷小摸就杜绝了。 来自《简明英汉词典》

6 blizzards   

暴风雪( blizzard的名词复数 )； 暴风雪似的一阵，大量（或大批）

参考例句：

• Even in the summertime we might be struck by blizzards. 甚至在夏天，我们也可能受到暴风雪的袭击。
• Blizzards battered Britain for the third day. 大风雪袭击英国已进入第三天。

7 plunge   

v.跳入，(使)投入，(使)陷入；猛冲

参考例句：

• Test pool's water temperature before you plunge in.在你跳入之前你应该测试水温。
• That would plunge them in the broil of the two countries.那将会使他们陷入这两国的争斗之中。