妙語佳句:

原句:But this stage 25 percent of their body mass is made up of silk glands.

解析:make up of:由 ... 組成

The group was made up of doctors.

這個團體是由醫(yī)生組成的。

原句:In the process of turning into adult moths,they spin a cocoon from a single strand of silk.

解析:in the process of:在 ... 過程中

The car is in the process of repair.

那車正在修理中。

解析:turn into:變成

The whole thing turned into a bitter quarrel.

整件事釀成了激烈的爭吵。

原句:Harvested cocoons are droped into boiling water which unravels the long filaments.

解析:drop into:掉入

I drop into desperation.

我陷入絕望。

解析:boiling water:正在沸騰的水

Let the tea leaves steep in boiling water for five minutes.

讓茶葉在滾開的水中浸泡五分鐘。

考考你:

在轉(zhuǎn)化成蛾的過程中他們從一條絲開始吐絲成繭。

然而這個時期絲腺占了體重的四分之一。

上期答案:

Jiayuguan fortress was considered to be the last outpost of Chinese civilization

The key to that secret lies in the distant past