九年级英语下册 Unit 13 We’re trying to save the earth Section B（3a-Self Check）作业设计 （新版）人教新目标版.doc

unit 13 section b 3a-self check一、阅读理解all living things need energy to live and grow. this energy comes first from the sun. plants use water and sunlight to make their own food. animals can not make their own food, and they eat plants. other animals then eat the plant eaters.a food chain shows what eats what. it might show that zebras eat grass and then lions eat zebras.lions also eat other animals. zebras eat other kinds of plants. so it takes more than one food chain to show how lions and zebras get their energy.a food web shows how food chains work together. from it we can see how energy moves from plants to animals.plants and animals that live in hot, dry deserts depend on water as well as food. creosote bushes have small leaves that hold water. their seeds provide food and water for kangaroo rats. kangaroo rats dont need to drink water. they get all the water they need from the plants they eat. kangaroo rats keep cool by coming out only at night to look for food. ringtail cats also come out only at night. ringtail cats hunt and eat kangaroo rats. coyotes eat both the kangaroo rats and the ringtail cats.nothing is wasted in a food wed. vultures eat dead animals. vultures are scavengers. scavengers do not hunt and kill other animals to get food. they eat animals that are already dead. when a ringtail cat or a coyote dies, it makes a meal for the vultures. scavengers do an important job in keeping the environment clean.1. where does the energy that living things need first come from?a. animals. b. plants. c. the sun. d. plant eaters.2. why do ringtail cats come out only at night?a. because they are afraid of coyotes.b. because they are shy animals.c. because it is very hot in the daytime.d. because they can eat kangaroo rats.3. what kind of animal can be placed in the empty box of the picture?a. kangaroo. b. vulture. c. cat. d. zebra.4. which of the following is not true according to the passage?a. lions eat different kinds of animals.b. plants are on the top of the food chain.c. scavengers can keep the environment clean.d. some animals get water from the plants they eat.5. whats the best title of the passage?a. web of life b. things that we eatc. food in the desert d. the place where food is from二、书面表达荣光学校九年级（2）班就“环境问题”召开了一次班会，并且以“our environment in ten years: for better or worse? ”为题进行了一次讨论。许多同学对未来表示乐观，但也有些同学对未来有些担心。请根据表格中的内容提示，用英文写一篇短文。乐观者的观点1.越来越多的人将成为环保主义者。2.政府将采取更多的措施改善环境。担心者的观点1.大量的树木仍将被砍伐。2.私家车将越来越多。你的观点及你的打算学生自拟 (至少两点)提示：1.短文中不得出现真实的人名和地名。 2.短文中应包含至少4个要点。3.书写工整，语句通顺、连贯，词数不少于80。注意：文章开头已给出，不计入总词数。参考词汇：optimistic adj.乐观的 government n.政府 take measures to 采取措施 private adj.私有的 our environment in ten years: for better or worse? many students are optimistic about our environment in ten years. unit 13 section b 3a-self check答案一、1. c 细节理解题。根据文章第一段第二句this energy comes first from the sun.，可知生物最初需要的能量来源于太阳。故选c。2. d 细节理解题。根据文章第五段中的 “ringtail cats also come out only at night. ringtail cats hunt and eat kangaroo rats.”，可知选d。3. b 细节理解题。根据文章最后一段中的“when a ringtail cat or a coyote dies, it makes a meal for the vultures.”，可知选b。4. b 推理判断题。根据第一段中的“plants use water and sunlight to make their own food. animals can not make their own food, and they eat plants.”可知植物不处于食物链的顶端，故选b。5. a 主旨大意题。根据本文内容可知本文介绍了自然界中食物链的构建和循环，故答案为a。二、【参考范文】our environment in ten years: for better or worse?many students are optimistic about our environment in ten years. in fact, they think that the world will be a better place than it is now. more and more people are becoming volunteers to protect the environment. the government will take more measures to improve the environment.however, other students are worried about the future. a large number of trees will be cut down. private cars