根据句意,用括号中所给词的适当形式填空
1. Tom is very strong and 90 kilos. (weigh)
2. In the beautiful garden, the old lady planted many . (rose)
3. African elephants are the biggest animals on ,right? (land)
4. Our teachers always tell us that knowledge(知识) will give us to fly high. (wing)
5. Some animals like snakes and sleep through the cold winter. (frog)
6. These are very tall trees. They have yellow . (leaf)
7. It was the first time I travelled in an country. (Africa)
8. Autumn is the season among the four seasons. (colourful)
9. Some colourful are flying around the flowers in the garden. (butterfly)

1. weighs 2. roses 3. land 4. wings 5. frogs 6. leaves 7. African 8. most colourful 9. butterflies

1. 主语Tom是第三人称单数，句子时态为一般现在时，动词weigh要变为第三人称单数形式weighs。
2. 限定词many后接可数名词复数，rose的复数形式为roses。
3. 固定搭配on land意为“在陆地上”，直接填名词原形land。
4. wing是可数名词，此处表示泛指，要用复数形式wings。
5. and并列的snakes为可数名词复数，frog也要变为复数形式frogs。
6. 主语They指代前文的复数名词trees，每棵树的叶子不止一片，leaf的复数形式为leaves。
7. 此处需要形容词修饰名词country，名词Africa要变为形容词African，意为“非洲的”。
8. 范围是among the four seasons（在四个季节之中），多者比较要用形容词最高级，colourful的最高级为most colourful。
9. 限定词some后接可数名词复数，butterfly的复数形式为butterflies。

阅读理解(七选五)
Trees are everywhere around us. They help us and our environment in many ways. Let's take a look.
• They help us breathe.
1. A leafy tree produces as much oxygen in a season as ten people take in a year.
• They keep the earth cool.
Trees can beat the heat by taking in carbon dioxide that causes global warming.
•2.
Tree roots help to absorb (吸收) water during floods (洪水). They can slow the water flow.
• They store water.
Forests are like sponges (海绵), catching rainfall. 3. Water can be stored there.
• They keep dirt in its place.
A forest's roots can hold soil together. In this way, the soil cannot be moved by wind or water.
• They clean up dirty air.
There are many pollutants(污染物) in the air. 4.
• They give us medicines(药物).
5. For example, ginkgo leaves are good for our lungs.
• They help us relax and explore.
Spending time in forests can help us calm down, as well as make us more creative.
A. They fight floods.
B. Trees help clean the sky.
C. They control noise pollution.
D. Then, water goes down into soil.
E. Forests provide a wealth of natural medicines.
F. Trees make oxygen and take in carbon dioxide.
G. Trees can store harmful pollutants or change the pollutants into less harmful forms.

1.F 2.A 3.D 4.G 5.E

1. 第一空所在部分的主题是树木帮助我们呼吸，后文提到树木产生氧气的相关数据，F选项“树木制造氧气并吸收二氧化碳”既呼应呼吸的主题，又引出后文的氧气相关描述，衔接自然。
2. 第二空是该部分的小标题，后文内容介绍树根在洪水期间吸水、减缓水流的作用，A选项“它们抵御洪水”精准概括该部分核心内容，符合文章的点题结构。
3. 第三空前文提到森林像海绵承接雨水，后文说明水可以被储存起来，D选项“然后，水渗入土壤”承接承接雨水的动作，顺承引出后续储水的逻辑。
4. 第四空所在部分主题是树木净化污浊空气，前文提到空气中有很多污染物，G选项“树木可以储存有害污染物，或将污染物转化为危害更小的形态”对应净化脏空气的功能，逻辑通顺。
5. 第五空所在部分主题是树木为我们提供药物，后文举了银杏叶对肺部有益的例子，E选项“森林提供大量天然药物”呼应主题，引出后文的举例内容。