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植物的遗传奥秘
How are plants like their parents?
You know cats have kittens and you also know dogs have puppies. Animals have babies that look and act like their parents. Plants work the same way. A sunflower makes seeds that grow into sunflowers. An oak tree makes acorns that grow into oak trees.
The ways plants and animals look and act like their parents are called traits. Young plants will have many of the same traits as their parent plants. They will have the same shape of flowers, petals, and leaves. Some plants might look a little different from their parent plants.
一、阅读短文，选择合适的选项。
(
A. Their sisters. B. Their parents. C. Themselves.
(
A. they all need sunlight, water, and air to live
B. they are all living things
C. young plants look and act like their parent plants
(
A. 习惯 B. 特点 C. 行为
(
A. Only flowers. B. Flowers, petals, and leaves.
C. Flowers and leaves.
二、新考法 开放问答 阅读并思考，回答下面的问题。
If you were a plant, what kind of plant would you want to be and why?
How are plants like their parents?
You know cats have kittens and you also know dogs have puppies. Animals have babies that look and act like their parents. Plants work the same way. A sunflower makes seeds that grow into sunflowers. An oak tree makes acorns that grow into oak trees.
The ways plants and animals look and act like their parents are called traits. Young plants will have many of the same traits as their parent plants. They will have the same shape of flowers, petals, and leaves. Some plants might look a little different from their parent plants.
一、阅读短文，选择合适的选项。
(
B
)1. Who do kittens and puppies look and act like?A. Their sisters. B. Their parents. C. Themselves.
(
C
)2. Plants work the same way as animals. The phrase “the same way” means “”.A. they all need sunlight, water, and air to live
B. they are all living things
C. young plants look and act like their parent plants
(
B
)3. The word “traits” means “” in Chinese.A. 习惯 B. 特点 C. 行为
(
B
)4. What parts of young plants look like their parents?A. Only flowers. B. Flowers, petals, and leaves.
C. Flowers and leaves.
二、新考法 开放问答 阅读并思考，回答下面的问题。
If you were a plant, what kind of plant would you want to be and why?
示例1:If I were a plant, I would want to be a sunflower. Because sunflowers are very beautiful and they follow the sun. They can bring light and happiness to people. I also want to be like a sunflower, always positive and full of energy. 示例2:If I were a plant, I would want to be a cherry blossom tree. Because cherry blossoms are very beautiful and symbolize spring. When they bloom, they make the surroundings look like a fairy tale. I want to bring beauty and hope to the world.
答案
一、1. B 细节理解题。文中明确指出，“动物的后代在外观和行为上会与父母相似(Animals have babies that look and act like their parents.)”。这句话直接表明，小猫(猫的后代)和小狗(狗的后代)在外观和行为上像它们的父母。
2. C 推理判断题。文中解释说，植物和动物一样，会产生与父母相似的后代。句子“Plants work the same way. A sunflower makes seeds that grow into sunflowers. An oak tree makes acorns that grow into oak trees.”说明植物通过种子繁殖，这些种子会长成与母株相似的植物。因此，“the same way”指的是植物的幼苗与母株在特征上相似，就像动物的后代与父母在外观和行为上相似一样。
3. B 词义猜测题。文中定义“traits”为“植物和动物在外观和行为上像父母的方面(The ways plants and animals look and act like their parents)”。这一描述与“特点(特征或特性)”的含义一致，即从父母那里继承的外观和行为上的相似性。
4. B 推理判断题。文中提到，“幼苗会具有许多与母株相同的特征。它们会有相同的花朵、花瓣和叶片(Young plants will have many of the same traits as their parent plants. They will have the same shape of flowers, petals, and leaves.)”。这句话明确列出了幼苗与母株相似的具体部分，即花朵、花瓣和叶片。
二、示例1:If I were a plant, I would want to be a sunflower. Because sunflowers are very beautiful and they follow the sun. They can bring light and happiness to people. I also want to be like a sunflower, always positive and full of energy.
示例2:If I were a plant, I would want to be a cherry blossom tree. Because cherry blossoms are very beautiful and symbolize spring. When they bloom, they make the surroundings look like a fairy tale. I want to bring beauty and hope to the world.
2. C 推理判断题。文中解释说，植物和动物一样，会产生与父母相似的后代。句子“Plants work the same way. A sunflower makes seeds that grow into sunflowers. An oak tree makes acorns that grow into oak trees.”说明植物通过种子繁殖，这些种子会长成与母株相似的植物。因此，“the same way”指的是植物的幼苗与母株在特征上相似，就像动物的后代与父母在外观和行为上相似一样。
3. B 词义猜测题。文中定义“traits”为“植物和动物在外观和行为上像父母的方面(The ways plants and animals look and act like their parents)”。这一描述与“特点(特征或特性)”的含义一致，即从父母那里继承的外观和行为上的相似性。
4. B 推理判断题。文中提到，“幼苗会具有许多与母株相同的特征。它们会有相同的花朵、花瓣和叶片(Young plants will have many of the same traits as their parent plants. They will have the same shape of flowers, petals, and leaves.)”。这句话明确列出了幼苗与母株相似的具体部分，即花朵、花瓣和叶片。
二、示例1:If I were a plant, I would want to be a sunflower. Because sunflowers are very beautiful and they follow the sun. They can bring light and happiness to people. I also want to be like a sunflower, always positive and full of energy.
示例2:If I were a plant, I would want to be a cherry blossom tree. Because cherry blossoms are very beautiful and symbolize spring. When they bloom, they make the surroundings look like a fairy tale. I want to bring beauty and hope to the world.
