Do you raise silkworms(养蚕) in spring?It is interesting and fun to see the small eggs grow bigger,spin silk(吐丝)and turn into moths(飞蛾). China has a long history of raising silkworms.Over 5,000 years ago,Chinese people found the secret(秘密) of silkworms.So what is the secret? (...
Answer the questions 1 What do the silk worms eat? 2 What can the silk worms make? 3 What are the moths like? I have five silkworms Thursday, 19 th May I have five silkworms. They are small and white. They have many legs. I put them on some leaves. They eat the leaves. ...
3这些蚕蛾长什么样子?答案链接1 The silkworms eat leaves.2 The silkworms can make silk.3 The moths are brown. Theyhave wings.我有五条蚕五月十九日星期四我有五条蚕。它们又小又白。它们有许多条腿。我把它们放在叶子上。它们吃叶子。六月十五日星期三这些蚕之前很小。现在它们长大了。它们每天吃很多叶子...
No.Many of them are helpful to man.Bees make honey.Without bees and other insects,many trees would have no fruit.Silkworms make silk.Some insects eat other insects that kill fruit trees.Have you ever seen a praying mantis?People who do not know about the praying mantis sometimes kill it ...
百度试题 结果1 题目 ( B )1. What can the silkworms do on Apni 2 1 st? They can A. lay eggs B. make silk C. fly 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
Magic silkworms Do you raise silkworms (养蚕) in spring? Do you know how long it takes a silkworm to turn into a moth (蛾子)? Do you want to make a fan or a bookmark (书签) out of silk (蚕丝)?Changes around us Our life changes a lot and it becomes better and better. What is...
(3) No.Many of them are helpful to man.Bess make honey.Without bees and other insects,many trees would have no fruit.Silkworms make silk.Some insects eat other insects that kill fruit trees. (4) People sometimes kill this insect,because thay think it does no good.But it is of great ...
Silk was so expensive that it was called 'the cloth of kings'. Everyone wanted to learn how to make silk, but the Chinese kept the secret carefully. Finally, the secret was stolen. In the sixth century, two foreigners learned about the silkworms and their cocoons. They spent several years...
To enter the resting phase, larvae of silkworms start to make a natural cover around them secreting slimy thread-like structures which hardens subsequently into a cocoon. This is the source of coveted silk.
Silk was 5 expensive that it was called "the cloth of kings". Everyone learn how to make silk, but the Chinese kept the secret 6 (care). Finally the secret was 7 (steal). In the sixth century, two foreigners learned silkworms and their cocoons. They spent several years in China and...