题目内容
20.A food chain shows what eats what.It might show that zebras eat grass and then lions eat zabras.
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 don't 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 web,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.
31.Where does the energy that living things need first come from?C
A.Animals
B.Plants
C.The sun
D.Plant eaters
32.Why do ringtail cats come out only at night?D
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
33.What kind of animal can be placed in the empty box of the picture?B
A.Kangaroo
B.vulture
C.Cat
D.Zebra
34.Which of the following is NOT TRUE according to the passage?B
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.
35.What's the best title of the passage?A
A.Web of life
B.Things that we eat
C.Food in the desert
D.The place where food is from.
分析 文章大意:所有生物需要能量去生存和成长.这些能量首先来自太阳.植物用光和水制造养料.动物不能制造食物却能吃植物.其他动物吃食草动物.然后讲到食物链,食物网.食物网表示食物链怎样一起作用,从它上面我们能看到能量怎样从植物到动物.在沙漠里,蒺藜科植物的种子为跳囊鼠提供水和食物,浣熊猫吃跳囊鼠.土狼吃跳囊鼠和浣熊猫.在食物网中,没有什么是浪费的,食腐动物吃死了的动物的尸体,食腐动物如秃鹫扮演着重要的角色来使环境干净.
解答 31.C;根据原文All living things need energy to live and grow.This energy comes first from the sun.所有生物需要能量去生存和成长.这些能量首先来自太阳.所以选C.
32.D;根据原文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.浣熊猫也晚上出没是因为吃跳囊鼠,跳囊鼠晚上出没.所以选D.
33.B;根据原文Vultures eat dead animals.Vultures are scavengers.食腐动物吃死了的动物的尸体.看图片中,既吃跳囊鼠,浣熊猫,土狼的就是,食腐动物秃鹫了.所以选B.
34.B; 根据上下文,A,C,D 都是正确的,B选项植物在食物链的最顶端是错的,应该是食腐动物,植物应该处在最底层.所以选B.
35.A;根据A food web shows how food chains work together及文章大意可知文章主要讲了生物网的构成及如何运作,所以选A.
点评 阅读题考生注意先通读全文了解大意,再根据内容看各个问题,尤其是细节题,注意从原文中找出有关信息的句子,然后作答.
| lose newspaper nobody soft mistake |
Many (95)newspapers reported the girl's story the next day.The young girl could simply tell a lie,and (96)nobody would find it out.But she was brave enough to tell the truth.She made the right choice.In fact she won great respect from others because she was honest.
一I don't know.I'll go and see.( )
| A. | what Jim does | B. | what Jim is doing | ||
| C. | what does Jim do | D. | what is Jim doing |
| water no interest it look |
Tony:What is(56)it about?
Bill:Scientists have discovered (57)water on Mars.
Tony:Really?That's very fantastic.Have they discovered life on Mars?
Bill:Well,they're(58)looking for life but they haven't found anything yet.
Tony:I know there's (59)no life on the moon.
Bill:Yes,that's right.So far there's only life on Earth.
Tony:Are we alone with so many stars in the universe?
Bill:I am (60)interested in it,so I want to be a scientist when I grow up.
Tony:I wish you will.
-Oh,it's__________.Thank you.( )
| A. | I | B. | me | C. | my | D. | mine |
| A. | fast | B. | faster | C. | fastest | D. | the fastest |