时间:2018-12-30 作者:英语课 分类:考研背诵50篇


英语课

   American black bears appear in a variety of colors despite their name. In the eastern part of their range, most of these brown, red, or even yellow coats. To the north, the black bear is actually gray or white in color. Even in the same litter, both brown and black furred bears may be born.


 
  Black bears are the smallest of all American bears, ranging in length from five to six feet, weighing from three hundred to five hundred pounds Their eyes and ears are small and their eyesight and hearing are not as good as their sense of smell.
 
  Like all bears, the black bear is timid, clumsy, and rarely dangerous , but if attacked, most can climb trees and cover ground at great speeds. When angry or frightened, it is a formidable enemy.
 
  Black bears feed on leaves, herbs. Fruit, berries, insects, fish, and even larger animals. One of the most interesting characteristics of bears, including the black bear, is their winter sleep. Unlike squirrels, woodchucks, and many other woodland animals, bears do not actually hibernate 1. Although the bear does not during the winter moths 2, sustaining itself from body fat, its temperature remains 3 almost normal, and it breathes regularly four or five times per minute.
 
  Most black bears live alone, except during mating season. They prefer to live in caves, hollow logs, or dense 4 thickets 5. A little of one to four cubs 6 is born in January or February after a gestation 7 period of six to nine months, and they remain with their mother until they are fully 8 grown or about one and a half years old. Black bears can live as long as thirty years in the wild , and even longer in game preserves set aside for them.

v.冬眠,蛰伏
  • Bears often hibernate in caves.熊常在山洞里冬眠。
  • Some warm-blooded animals do not need to hibernate.一些温血动物不需要冬眠。
n.蛾( moth的名词复数 )
  • The moths have eaten holes in my wool coat. 蛀虫将我的羊毛衫蛀蚀了几个小洞。 来自《简明英汉词典》
  • The moths tapped and blurred at the window screen. 飞蛾在窗帘上跳来跳去,弄上了许多污点。 来自《现代英汉综合大词典》
n.剩余物,残留物;遗体,遗迹
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。
a.密集的,稠密的,浓密的;密度大的
  • The general ambushed his troops in the dense woods. 将军把部队埋伏在浓密的树林里。
  • The path was completely covered by the dense foliage. 小路被树叶厚厚地盖了一层。
n.灌木丛( thicket的名词复数 );丛状物
  • Small trees became thinly scattered among less dense thickets. 小树稀稀朗朗地立在树林里。 来自辞典例句
  • The entire surface is covered with dense thickets. 所有的地面盖满了密密层层的灌木丛。 来自辞典例句
n.幼小的兽,不懂规矩的年轻人( cub的名词复数 )
  • a lioness guarding her cubs 守护幼崽的母狮
  • Lion cubs depend on their mother to feed them. 狮子的幼仔依靠母狮喂养。 来自《简明英汉词典》
n.怀孕;酝酿
  • The gestation period can be anything between 95 and 150 days.妊娠期从95天至150天不等。
  • This film was two years in gestation.这部电影酝酿了两年。
adv.完全地,全部地,彻底地;充分地
  • The doctor asked me to breathe in,then to breathe out fully.医生让我先吸气,然后全部呼出。
  • They soon became fully integrated into the local community.他们很快就完全融入了当地人的圈子。
学英语单词
2-sec-butylphenyl-n-methylcarbamate
adelae
apurashokoru i.
Askyaran
audhumla
auricular branch
Ban Lang Khao
Ban Phon Tan
belmontite
bikini bottom
biotic ecotype
blasts it
bockhart impetigo
body wastes
Bong-Siemens process
break-even exchange rate
Bunratty Castle
c.c.r.
calorite
cash flow budget
certificate of departure port
chenille cutting machine
cholemic intoxication
churchliest
coarseness
computational methods
dentiaskiascope
diligere
dilution test
dorsulum
double load
double ripple
dry provisions
duodenoscopy
earnings records
EIV
engine local control
exterritorial juisdiction
f numbers
fibrinbioplast
fleech
forced tremor
fugitive flavo(u)r
fully-automatic compression machine
geometrizations
high resolution capacity
hypomelanoses
instrew
integrated access device
intensity function
killeth
kryptonated silica
lans
ligameata puboprostaticum
marshscapes
matched joint
microresistivity log
middle palatine nerve
Miercurea-Ciuc
Mlicrococcus pyogenes
multiplicative Abelian group
murohara
non-loaded line
norrie
Ocean Towage
official copy
out-of-process
Pasiniaxzide
phosphotungstic green
plain-speaking
platypoda
post-tussis
potanthus pava
pre-coded
preservation of
pygmy lamp
quinin valerate
retinotopically
Rosario, Ensenada de
sagredoes
saw-tooth milling cutter
sea urchin sting
short-horneds
slatland
spray marking
Stone transmission bridge
sucked into
superhurricane
swing up saw
telescope switch
tether
Thesprotian
tin printing oven
top needle
transfer-in with compensation
tubular apocrine adenoma
uncharged particle
unfunded liabilities
virtual desktop
window-shopping
xenon variation