题目
题型：同步题难度：来源：
e world wish all humans to realize the significance of their natural surroundings, many Australians are turning caring for the environment into a way of life.
Julie Astonis, an Australian housewife in Brisbane is one such example. Even though autumn is
approaching Australia"s Brisbane in April, one can still watch colorful blooming (盛开的) flowers in
Julie"s little garden, as she tells that in her community, "Each of us has a beautiful yard. The whole
community, from children to elderly people, takes care of the environment as if they are taking care of their own garden."
"Gardening is the most popular club in our community," she says. "A lot of retired people don"t just
regularly organize gardening lectures, but also personally visit families in the community to provide
gardening training. So you can see that flowers continue to blossom in our gardens throughout the year."
Talking about her people"s sense of caring for the environment, Julie says when people in the
community take along their dog, they always carry a garbage bag to deal with the dog"s waste. "In our
community, you will never experience the embarrassment of stepping on the dirty waste while you are
walking on the grass," says Julie with a smile."Taking care of the the dog"s waste can also help to develop
children"s sense of responsibility!"
As to protecting water resources, the Australian goverment has made strict rules for families. Julie says, "We certainly would not use tap water to water the flowers!"She says almost every family in her
c
ommunity has a huge tank used to store rainwater, which is later used as the resource of all outdoor water use, including car washing and watering the garden. This year, they also asked people to connect the water tank with their toilets.B. April is a great time for people to enjoy flowers
C. it"s not easy to keep a garden without proper training
D. Julie"s community has a deep sense of caring for nature
B. Families are taught how to take care of their gardens.
C. The local government provides free gardening training.
D. There is enough rainwater to water the flowers regularly.
B. She once stepped on a dog"s waste.
D. She is quite in favor of raising a dog.
D. She finds it embarrassing to walk on the grass.
B. her community owns a public tank
C. her community makes full use of resources
D. it is not necessary to water flowers very often
B. How Australians save resources
C. How Australians lead their life
D. Protect nature, a must of life
答案
核心考点
试题【阅读理解 While nature lovers across the world wish all humans to realize the sig】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
First prepare the following items:
●2 glass containers(容器) that need to be the same size and shape
●1 gallon plastic bag
●4 cups of very cold water
●Ice cubes
Fill each container with two cups of cold water. Add the same amount of ice cubes to each container. Then put one of the containers in the plastic bag and close it tight. Put both containers in the sun together and keep them there for at least an hour.
At the end of one hour remove the container from the plastic bag and immediately check the temperature of the water. After you record this, find out the temperature of the water that is not covered.
When you place the containers in direct sunlight, the air inside the bag becomes very warm. The heat filters (渗入) in but cannot escape so it stays in the closed plastic bag and increases the temperature. What if you leave that for two, three or four hours?
Think about what is happening to the Earth. There are chemicals that are creating a type of plastic bag around the Earth. It causes our air to get warmer because of the heat from the sun being kept in this closed area.
Think about your car in the hot summer. This is what happens when you leave your car outside all day. This greenhouse effect has caused your car to be so hot that you sometimes cannot even touch the steering wheel.
This science project goes to show what affects our planet.
1. According to the text, the greenhouse effect appears mainly because of ________.
A. the hot sunlight
B. chemicals around the Earth
C. the plastic bag
D. human activities
2. Which of the following shows the right order of steps for the science project?_______
a. Measure the water which is not covered.
b. Make preparations for the project.
c. Fill each of the two glass containers with two cups of cold water.
d. Put one container in a plastic bag and close it tight.
e. Put the two containers in the sun for at least one hour.
f. Measure the water which is covered with a plastic bag.
A. b e d c a f
B. b c d e f a
C. b c e d a f
D. b e c d f a
3. The writer mentions a car on a hot summer day to _______.
A. tell us about the hot weather in summer
B. prove the science project is correct
C. show the effects of the greenhouse effect
D. tell us how to protect cars during summer
4. If the story appears in a newspaper, the best title might be "________".
A. An Interesting Experiment Done by Kids
B. How to Protect Our Precious Planet
C. Bring Home the Seriousness of Greenhouse Effect
D. The Greenhouse Effect Has Been Proved by Kids
the risk of dehydration (脱水) . But athletes now know they can also get into trouble by drinking to much .
To much water intake can lower levels of sodium (钠) in the blood . The death of a 28-year-old woman
following the Boston Marathon caught the attention of many runners and led to new research .
Experts advise long distance runners to replace the liquids they sweat out . Their goal is to try to keep
someone from not getting dehydrated by more than 2 percent of their body weight .
One technique for deciding how much water you need is to get the exact numbers . Runners have to
weight themselves before and after a run to determine how much water they"ve lost . If their weight drops
by more than 2 percent , they have not drunk enough water.
Hyponatremia occurs when runners drink so much water that blood salt levels drop off . A study
published last year tested 488 runners who completed the Boston Marathon and found 13 percent of them
had dangerously low blood salt levels . The first sign that runners may notice is slightly swelling in the
hands . They can"t get their rings off , and then they might feel sick . They may not remember where they
are . In fact , most runners get enough salt to get back to normal levels by eating just one meal after a run .
Contrary to the old advice that runners should drink as much as they can to prevent dehydration , the new
research has shown that the body is a remarkable machine that actually tells you via thirst when you need
water .
B．the long distance runners who need help
C．how to manage water intake during a marathon
D．a 28-year-old woman who died after a Boston Marathon
B．They can learn how much salt there is in the blood .
C．They ca know the quantity of water they"ve lost during a run .
D．They can decide what kind of water they should take during a run .
B．Either too much or to little of water intake is harmful .
C．A rich meal is helpful to our performance in a run .
D．We should take enough salt during a run .
B．Too much water intake→blood salt levels ?→hyponatremia .
C．No water intake→blood sodium levels↑→hyponatremia .
D．No water intake →blood salt levels ?→hyponatrenmia .
food is very important. It can help your body grow strong, so take care of what you eat.
There are four main food groups altogether. The dairy group(乳制品) has food like milk,
cheese and sour milk. The other three groups are the meat and fish group, the fruit and
vegetable group, and the bread and rice group. Each meal should have at least one food from all
four main groups. With all these food together, you will be given enough energy during the day.
It is easy to get into bad eating habits. You may eat your breakfast in a hurry to get to school
on time. Or you may not have time for a good lunch. It may seem easy to finish your supper with
fish and chips all the time. But you will find yourself tired in these days and you can not think
quickly.
Watching what you eat will help keep your body healthy and strong. It is also good to take so
me exercise. It will help you eat more if you take a walk or play games in the open air. Having a
good eating habit with some exercise is the key to your health.
1. Which of the following diets do you think is the best one?
A. Milk, bread, cabbage and beef.
B. Eggs, tomatoes and chicken.
C. Corn, fish, cream and pork.
D. Rice, beancurd, apples, fish and chicken.
2. Which of the following is a good eating habit?
A. Going to school without any breakfast.
B. Eating fish and chips for supper all the time.
C. Finishing your lunch in a very short time.
D. Having at least one food from all four groups each meal.
3. In the passage the writer mainly tells us that _____.
A. every person needs food to grow well
B. taking exercise can keep your body strong
C. right kind of food with exercise will keep you healthy
D. enough energy helps people think more quickly
4. The best title for the passage is _____.
A. The Four Food Groups
B. A Healthy Diet
C. Your Body and Food
D. The key to Your Health
on a tour of the world"s natural resources (资源). How are they used? What has been lost? What
remains and is it able to continue with the present speed of use? Wilson also points out the need to
understand fully the biodiversity (生物多样性) of our earth.
Wilson begins with an open letter to the pioneer in environment (环境) protection, Henry David
Thoreau. He compares today"s Walden Pond with that of Thoreau"s day. Wilson will use such
comparisons for the rest of the book. The problem is clear: man has done great damage to his home over
the years. Can the earth, with human help, be made to return to biodiversity levels that will be able to
support us in the future?
Biodiversity, Wilson argues, is the key to settling many problems the earth faces today. Even our
agricultural crops can gain advantages from it. A mere hundred species (物种) are the basis of our food
supply, of which but twenty carry the load. Wilson suggests changing this situation by looking into ten
thousand species that could be made use of, which will be a way to reduce the clearing of the natural
homes of plants and animals to enlarge farming areas.
At the end of the book, Wilson discusses the importance of human values in considering the
environment. If you are to continue to live on the earth, you may well read and act on the ideas in this
book.
1. We learn from the text that Wilson cares most about ______.
A. the environment for plants
B. the biodiversity of our earth
C. the waste of natural resources
D. the importance of human values
2. How many species are most important to our present food supply?
A. Twenty.
B. Eighty.
C. One hundred.
D. Ten thousand.
3. Wilson suggests that one way to keep biodiversity is to ______.
A. learn how to farm scientifically
B. build homes for some dying species
C. make it clear what to eat
D. use more species for food
4. We can infer that the text is ________.
A. a description of natural resources
B. a research report
C. a book review
D. an introduction to a scientist
carbon dioxide out of the atmosphere. However, it now turns out that planting trees could add to global
warming. We all know that tree roots do a great job of keeping soil firmly on the ground and out of the
wind"s power. The problem is that some of the dust clouds play an important part in soaking up carbon
dioxide.
Huge dust storms blow out over the oceans from dry parts of North Africa and Central Asia. Tons
of dust are lifted and left as a thin film over the ocean surface.
Dust from China is carried east and left in the Pacific Ocean. If a treeplanting programme there is
successful and the dust supply reduced, the net result may be that less carbon dioxide gets locked away
in the ocean.
Andy, an environmental scientist has spent the past few years studying dust and says his work shows
clearly the complexity of the system. For this reason the need is to focus on cutting carbon dioxide giving
off rather than doing anything else.
Robert, an American scientist, has shown that when native grassland areas are invaded by trees,
carbon is lost from the soil. "We are studying why the soil carbon disappears, but one theory is that trees
do a lot more of their growing above ground compared to grass, so less carbon goes directly into the soil
from trees." said Robert.
In wet areas of the world, the gain from trees absorbing carbon dioxide above ground seems to be
outweighed by the loss of carbon from the soil below ground.
Countries that plan to fight against global warming by planting trees may have to think again. Solutions
to environmental problems are often more complex than they first appear, and understanding the Earth"s
climate is a very great challenge.
1. People usually hold the opinion that ________.
A. huge dust storms can destroy carbon dioxide
B. planting trees could reduce global warming
C. huge dust storms can destroy the oceans on the Earth
D. planting trees is the only way to control huge dust storms
2. Andy, an environmental scientist, believes that________.
A. environmental problems are more complex than expected
B. trees shouldn"t have been planted in dry places
C. dust plays a more important part than trees
D. carbon dioxide is harmful to everything
3. Robert"s experiment proves that ________.
A. trees absorb more carbon than grass
B. carbon can turn grass into dust
C. less carbon can make trees grow faster
D. grassland areas should be covered by forests
4. The best title for this passage is "________".
A. The importance of planting trees
B. The dust clouds soak up carbon dioxide
C. Is it really useful to plant trees to reduce global warming?
D. Why the soil carbon disappears
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