Unit 6 Nature in words

Section Ⅰ Starting out & Understanding ideas

基础训练

单词拼写 根据首字母或汉语提示，用本部分所学单词的正确形式填空。

1. She b____down, picked up the rock, and threw it into the river.

2. The w____schedule may make you more aware of how you spend your time.

3. The first time I went there, I was struck by the delightful p____of the lake.

4. When I was a kid, I lived with my grandma and she sang r____to me every night.

5.If you have any problem, please call our i____, and they will come to you immediately.

6. The man____(坚称) that he was just defending himself when attacked.

7. Large paintings can____(增强) the feeling of space in small rooms.

8.He spent three years playing the guitar in the____(教堂) band and he took inspiration from that.

9. I went near the____(无辜的) dog and held it in my arms.

10. Dad grew a beard so as not to have the bother of____(刮胡子) every morning.

选择填空 用方框中所给短语的适当形式填空。

（talk away come round transform... into... break out come out）

1.After a long time, the rain finally stopped and the sun_______.

2.I came across an old friend in the cafe yesterday, and we____for two hours.

3.It is a surprise that the faraway village____a tourist city in the past few years.

4.Does everyone know what to do if a fire_______?

5.On entering the garden we all noted that spring_______. How amazing that was!

课文语法填空

First Snow

It is the first time that I___1___ (see) snow this year. It is not only an event but a magical event. You go to bed in one kind of world and wake up to find___2___ (you) in another completely different. The secrecy and___3___ (quiet) will make it more magical. When I got up this morning, I found the world dead white and pale blues. The light___4___ (come) through the windows was very strange,___5___ made the familiar business of splashing, shaving, brushing and dressing strange too. When the sun came out, the snow became pink. The plum tree stood in full sunlight. An hour___6___ two later, everything was a cold sparkle of white and blue. I looked out___7___ my study window, and the ground went on and on, the sky was thick grey, and all the trees were black and in threatening shapes. Now the snow is falling___8___ (heavy), in great soft flakes, so that you can hardly see across the shallow valley. The___9___ (roof) are thick and the trees are all bending. From my study, I can see the children___10___ (flatten) their noses against the window.

1.____ 2.____ 3.____ 4.____ 5.____

6.____ 7.____ 8.____ 9.____ 10.____

能力提升

阅读理解

If you live in certain parts of the world, you will see something magical happen each fall. It is the changing of the color of the leaves on many different trees. Each year deciduous (落叶的) trees go through a process in which their green leaves become bright yellow, gold, orange and red before turning brown and falling onto the ground.

Photosynthesis (光合作用) is the process for trees to make their food. The leaves of a tree are where photosynthesis happens because the chlorophyll (叶绿素) in the leaves is what makes photosynthesis possible. Chlorophyll also has another job—it is what makes leaves green. When the seasons change in places where deciduous trees grow and the days get shorter and the weather gets colder, it is harder for the chlorophyll in the leaves to make the food needed to stay green. So instead of making more food, the leaves start using food they have stored away for this time of year.

As the leaves use the food that has been stored away, cells form at the bottom of each leaf. These cells act like a door between the leaf and the rest of the tree—a door that closes very slowly and doesn’t shut until all the leaf’s food is gone. While this is happening, the colors in the leaves of the trees are able to show through. In fact, the red, yellow, gold and orange colors are hiding in the leaves all summer long. The colors just can’t be seen in the summer because of all the chlorophyll in the leaves.

You might be wondering how the rest of the tree keeps growing when the weather turns cold and the leaves die and fall. Doesn’t the rest of the tree need the food made by the tree’s leaves?

Not really. The tree trunk and branches get food from the roots of the tree. The roots supply water, vitamins and minerals they get from the ground. Trees need sunshine and warm weather to grow, but they also need time to rest like bears that sleep during the winter.

1. Why do leaves change colors?

A. They save energy to stay alive.                       B. They can’t store food away.

C. They get used to the cold weather.                  D. They can’t get enough energy from the sun.