昆虫歌唱家_少儿读物

  
when you walk in a garden or in a park, listen carefully. you may hear some insects sing...


katydid
纺织娘

hi, i'm katydid.我的外号叫“蝈蝈”。 we sleep during the day and work and sing at night. we like to sing together in late summer and early autumn. 我们不是用嘴唱歌的。we make sounds with our front wings. many people like our songs. they invite us to their homes and let us live in beautiful cages.

more about katydids

1 蝈蝈是伪装高手。they pretend to be leaves when danger is around.

2 their antennae help them find their way around in the dark.

3 their ears are on their front legs.

cicada
蝉

hi, i'm cicada. 我的外号叫“知了”。 we like to sing on summer nights. 我们是用腹部的鼓膜发声的。people can hear our songs far away.我们的歌声的确太嘹亮了！

our songs can tell the weather. 民间流传着两句谚语：群蝉齐鸣天必晴；晴天蝉眠天要阴。do you know what they mean?

蝉的一生

baby cicadas have to sleep underground for many years. 最长达17年。then they come out and take off their coats.等翅膀变硬，公蝉就在树枝上高唱“知了”。cicadas die when summer is over. 所以说，蝉的生命实际上是相当短的。

cricket
蟋蟀

hi, i'm cricket. 我也有外号，叫“蛐蛐”。我是蝈蝈的亲戚，所以我们的特点差不多。 we're also great singers. some people keep us as pets. we have big, strong hind legs (后腿), so we can jump very far. and we like fighting!

sing for what?

1. when he is looking for a girlfriend, his song is loud and rapid. when she comes, his song becomes soft.

2. 如果歌声变得更大更长缺乏节奏感，说明什么呢？he is ready to fight.

3. 预报天气。the faster he sings, the hotter it is.

怎么用蛐蛐测量温度？

count the number of chirps （叫声）in 15 seconds.

add 39.

这个得数就是当时的华氏温度，把它换算成摄氏温度。

华氏度( f )和摄氏度( c )的换算公式：c=5/9（f-32）

据说用这种方法算出的温度误差不超过一度。

just for fun

1. crickets can be presents. in japan, people can buy them in post offices.

2. 在非洲的某些地方，人们相信蛐蛐的叫声具有神奇的魔力。

3. some people think a cricket in the house brings good luck.

观察蛐蛐

you need

a magnifying glass（放大镜）
a cricket （buy or catch one）
a camera（照相机）

your task

take pictures. 为照片配上文字。仔细观察蛐蛐，然后回答：

1. how many antennae does it have?
2. how many legs does it have?
3. how many wings does it have?

did you know?

一般情况下，会唱歌的昆虫都是公的！

learn it

look for 寻找

the mosquito is looking for food. 蚊子正在寻找食物。

补充短语
look after 照顾
look into 调查
look up 查找

task 1

听以下三种昆虫歌唱家的天籁之音：

katydid:

(鼠标右键选“目标另存为”下载此文件)


cicada:

(鼠标右键选“目标另存为”下载此文件)


cricket:

(鼠标右键选“目标另存为”下载此文件)

which do you think is the best singer, katydid, cicada, or cricket?

answer: __________

insects all around

ladybugs and butterflies,

buzzing bees up in the sky.

little ants crawling

up and down the plants.

many insects can be found

in the sky and on the ground.

task 2

上面的韵律诗里出现了四种昆虫名，请把它们写出来。


生词大本营 pretend 假装antennae 触须（复数）rapid 快速的