英國(guó)學(xué)生科學(xué)讀本 Lesson 90 結(jié)實(shí)的橡樹(shù)(1)

00:00

00:00

MP3下載

https://online2.tingclass.net/lesson/shi0529//10000/10267/ygxskxdb90a.mp3

https://image.tingclass.net/statics/js/2012

第90課 結(jié)實(shí)的橡樹(shù)

The oak is one of the finest and most useful of all our forest trees.

在所有森林樹(shù)種之中, 橡樹(shù)是最為優(yōu)良、最為有用的一種樹(shù)木。

Its height sometimes exceeds sixty feet, while the girth, or distance round the trunk, is often more than twenty feet.

它的高度有時(shí)候可以超過(guò)六十英尺, 而其周長(zhǎng)——也就是樹(shù)干一圈的長(zhǎng)度——則能夠達(dá)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,

地下的樹(shù)根在樹(shù)木周?chē)由斓拈L(zhǎng)度幾乎等同于樹(shù)枝向上伸展的長(zhǎng)度,

so that an oak-tree is very seldom blown down by the wind.

因此, 橡樹(shù)很少會(huì)被大風(fēng)吹倒。

It is easy to know the oak from all other trees by the size and shape of its leaves, which are oblong,

我們可以根據(jù)葉子的大小和形狀輕松地從樹(shù)叢中找到橡樹(shù),

about three or four inches in length, and have irregular edges.

因?yàn)檫@是一種三到四英寸長(zhǎng)且?guī)в胁灰?guī)則邊緣的長(zhǎng)圓形樹(shù)葉。

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 cross each other,

每片葉子都帶有一個(gè)短柄;將樹(shù)葉朝向亮光, 就會(huì)發(fā)現(xiàn)它具備網(wǎng)狀脈結(jié)構(gòu), 也就是說(shuō)葉脈彼此交叉。

and are not parallel like those of the leaves of grasses, or of the snowdrop or hyacinth.

這與野草、雪花蓮或者風(fēng)信子的葉子結(jié)構(gòu)很不相同, 它們的葉脈是“平行脈”。

As winter approaches, the leaves turn brown and drop off the oak-tree.

隨著冬天的到來(lái), 橡樹(shù)的葉子變成褐色, 從樹(shù)上掉落。

When the tree is bare, we can see its rough, rugged bark and its large twisted branches.

當(dāng)樹(shù)葉全部掉落之后, 我們就能夠看到粗糙的樹(shù)皮以及分杈的大樹(shù)枝。

In the spring the leaves grow again, and in April or May little clusters of small greenish flowers appear.

到了春季, 橡樹(shù)又會(huì)重新長(zhǎng)出樹(shù)葉, 而四月或五月時(shí)分就會(huì)出現(xiàn)一小簇一小簇的綠色花朵。

Soon the flowers drop off, and the fruit takes their place.

很快, 花朵凋謝, 果實(shí)長(zhǎng)了出來(lái)。

The fruit of the oak is a small brown nut, which is called an acorn.

橡樹(shù)的果實(shí)是一種棕色的小堅(jiān)果, 名叫橡子。

Each acorn grows in a little cup.

每個(gè)橡子都生長(zhǎng)在一個(gè)小的杯狀結(jié)構(gòu)之中,

英語(yǔ)美文