时间:2018-12-18 作者:英语课 分类:英国学生科学读本


英语课

   Lesson 90 The Sturdy Oak 第90课 结实的橡树


  The oak is one of the finest and most useful of all our forest trees. 在所有森林树种之中, 橡树是最为优良、最为有用的一种树木。
  Its height sometimes exceeds sixty feet, while the girth, or distance round the trunk, is often more than twenty feet. 它的高度有时候可以超过六十英尺, 而其周长——也就是树干一圈的长度——则能够达到二十英尺之多。
  Its roots extend under the ground around the tree nearly as far as its branches extend above ground, 地下的树根在树木周围延伸的长度几乎等同于树枝向上伸展的长度,
  so that an oak-tree is very seldom blown down by the wind. 因此, 橡树很少会被大风吹倒。
  It is easy to know the oak from all other trees by the size and shape of its leaves, which are oblong,  我们可以根据叶子的大小和形状轻松地从树丛中找到橡树,
  about three or four inches in length, and have irregular edges. 因为这是一种三到四英寸长且带有不规则边缘的长圆形树叶。
  Each leaf has a short stalk; and if you hold a leaf up to the light, you will see that it is net-veined—that is, its veins 1 cross each other, 每片叶子都带有一个短柄;将树叶朝向亮光, 就会发现它具备网状脉结构, 也就是说叶脉彼此交叉。
  and are not parallel like those of the leaves of grasses, or of the snowdrop or hyacinth. 这与野草、雪花莲或者风信子的叶子结构很不相同, 它们的叶脉是“平行脉”。
  As winter approaches, the leaves turn brown and drop off the oak-tree. 随着冬天的到来, 橡树的叶子变成褐色, 从树上掉落。
  When the tree is bare, we can see its rough, rugged 2 bark and its large twisted branches. 当树叶全部掉落之后, 我们就能够看到粗糙的树皮以及分杈的大树枝。
  In the spring the leaves grow again, and in April or May little clusters of small greenish flowers appear. 到了春季, 橡树又会重新长出树叶, 而四月或五月时分就会出现一小簇一小簇的绿色花朵。
  Soon the flowers drop off, and the fruit takes their place. 很快, 花朵凋谢, 果实长了出来。
  The fruit of the oak is a small brown nut, which is called an acorn 3.  橡树的果实是一种棕色的小坚果, 名叫橡子。
  Each acorn grows in a little cup. 每个橡子都生长在一个小的杯状结构之中,

1 veins
n.纹理;矿脉( vein的名词复数 );静脉;叶脉;纹理
  • The blood flows from the capillaries back into the veins. 血从毛细血管流回静脉。 来自《简明英汉词典》
  • I felt a pleasant glow in all my veins from the wine. 喝过酒后我浑身的血都热烘烘的,感到很舒服。 来自《简明英汉词典》
2 rugged
adj.高低不平的,粗糙的,粗壮的,强健的
  • Football players must be rugged.足球运动员必须健壮。
  • The Rocky Mountains have rugged mountains and roads.落基山脉有崇山峻岭和崎岖不平的道路。
3 acorn
n.橡实,橡子
  • The oak is implicit in the acorn.橡树孕育于橡子之中。
  • The tree grew from a small acorn.橡树从一粒小橡子生长而来。
标签: 科学读本
学英语单词
a pirate listener
Abengourou
alnus fruticosa rupt.
amaril
arc suppressing coil
BATOMORPHA
be well in with
biunique correspondence
Bolūk
buffer storage unit
business pick up
Callianassidae
canley
colliding-beam source
copy propagation
crotin
debt to nature
deep space
differential potentiometrictitration
diurella stylata
douche solution
drag surface
enstatite
enterotoxic hemorrhagic enteritis
erythrocyanosis crurum puellaris
estimation of burial time
Etinestryl
eyet
fargesii
fibreize
fingerprint compound
fisticuffss
forward box
genus Halicoeres
high dimensional data
hoelen
Holodiscus
horizontal rubber belt conveyor
horribl
house load operation
indomitability
Irelander
journey at reduced fare
kid-stakes
kolozsvar (cluj-napoca)
line bonding
long-range alpha particle
longitudinal slipway
magnetic inspection equipment
modern anaesthesia
mooring hulk
multi carrier
naifer
nerve of tensor tympani muscle
neun
nonaccepting
observed density
offshore oil production
Olpidium
oocyte cytoplasm
operating characteristic curve
parti pris
pay cheques
Phenylaminopropane
portable life support system
Prunus alleghaniensis
pulmonary talcosis
recessive stress
recorder-reproducer
rocky intertidal habitat
scurrit
sea water manure
sell't
semi-dull silk
shatter-index
single-break contact assembly
slackcom
smart band
spleniform
spondylus castus
standard manufacturing overhead
standard swivel
Starkey
stripperlike
styrax suberifolius hook. et arn.
sub-province
subobscurely
Suillus
surface-contact reheater
Tandarei
teethed
television movies
Tihφje
ubik
uncomfortableness
unsuccessful party
up country
Urbanistes
useat
user programmable data acquisition system
Vanke
zoomar