|
|
7月16日
豆豆对植物很感兴趣，特别是蔬菜和花。昨天找了一篇关于叶子的文章给他读，他特别喜欢。贴在这里给大家参考。是SCOTT FORESMAN Reading Street那套分级读物里的，这个的科学和社会部分尤其好，豆豆每一篇都喜欢。特别是还有配套的音频，太好用了。 红字部分是生词，还有一些是需要我翻译和解释一下的。豆豆什么时候能自己阅读这个难度的英文科普文章并且解释给我听，那就太美了。慢慢地，耐心地，等吧。
Many Leaves
by Ann Rossi
Animals live in different habitats. Animal body parts help them live. Animals use their body parts to help them find food. Animals also have ways to stay safe where they live.Animals have many ways to stay safe. Sometimes they help each other. Sometimes they use camouflage.
Plants are different from animals. Plants do not have antennae to help them. But plants are like animals in many ways. Their parts help them live in different habitats too.
Plants have parts.
Roots take in water. They also hold the plant in the ground.
The stem moves water around the plant.
The leaf makes food.
The flower makes seeds.
Plants have different kinds of leaves.
Plant parts help plants stay safe. Some plants use camouflage too.
In this book, you will learn about leaves that live in different places. You will find out that different leaves help plants live in different kinds of places.
Leaf Life
There are many different kinds of leaves.
Leaves grow in many places in the world. They have special parts to help them live in all these places.
Leaves come in many shapes, sizes, and colors. Some are as small as a baby’s little toe. But some are as long as a bus! You will seemany kinds of leaves on these pages.
Woodland Leaves
Many kinds of leaves grow in woodlands.
Woodlands are places with lots of trees.
Woodlands have simple leaves and compound leaves.
A simple leaf is one leaf on one stem. A compound leaf has many leaves on one stem.
Some leaves change color in the fall. This happens when the days are short and the nights are cool. The leaves fall to the ground by winter.
New leaves grow in spring. Evergreens stay green all year. They grow new leaves as they shed their old ones. Holly and laurel are evergreens. So are most conifers.
Conifers are plants that have cones. Maybe you have seen a pinecone from a conifer. Many evergreens have small leaves with points. These leaves are better for living where it is cold. The leaves have wax on them. This
keeps water in. Plants need to keep water in cold places.
Tropical Leaves
The tropics are hot and wet places.
The weather is perfect for palm plants.
Most palms have leaves that look like fans or feathers. Some palm leaves are very big. Rain forests and jungles are in the tropics. Their treetops make a thick cover. Not much light from the Sun gets to the forest floor. Leaves that grow under the cover can be very large. Their size helps them get enough light to make food.
Desert Leaves
Many desert plants have small spines.
These leaves do not give off much water.
Spines also keep plants safe from animals that want to eat them. Some plants store water in thick, waxy leaves. The waxy leaves help keep water inside the plant. Plants need to keep water when they live in hot, dry places.
Watery Leaves
Leaves that grow in water can be big or small. The flat, wide leaves of the water lily float on water. The giant water lily can grow to be as big as a car!
The next time you see a plant, look at its leaves. See their size, shape, and color. Then think about how the leaves, big or small, help the plant to live.
[ 本帖最后由 忘忧草2000 于 2009-7-16 16:50 编辑 ] |
评分
-
查看全部评分
|
|广告自助中心
狗仔卡
发表于 2009-7-14 08:26:06
楼主
里面的售货员是个小姑娘，憋笑憋的脸都红了。真是尴尬啊。
于是打书的计划暂停，哈考特的书才打了一小部分呢。