Vegans are persons who don't eat meat，fish，eggs，dairy，and other animal products from their diet.The average parent who is not a vegan often is concerned when their child decides to become vegans，wanting their personal physician to talk their child out of it.Will their child get enough nutrition （營(yíng)養(yǎng)）being a vegan？Don't kids have to eat meat to get enough protein （蛋白質(zhì)）in their diet？
Although not for everybody，a vegan diet does indeed have many health benefits，and if well planned，it can be a healthy diet for kids.One shouldn't te crazy when talking about possible health benefits of being a vegan，though.Evidence doesn't suggest that kids raised on a vegan diet are sick less often than other kids.Not all vegetarian foods are healthy—some are high in sugar，saturated fat （飽和脂肪），or cholesterol （膽固醇）.
The vegan diet is typically low in cholesterol and saturated fat and is high in fiber and may lead to a lower risk of heart disease，high blood pressure and other diseases.
These health benefits led Dr.Benjamin Spock to recommend a strict vegan diet for all children over the age of 2 years，which advised that children shouldn't be given products made from milk after they are two years old and that they can get plenty of protein and other nutrition from vegetables，beans，and other plant foods that avoid the fat and cholesterol that are in animal products.
Dr.Spock's advice created a lot of arguments.It's not because experts questioned the health benefits of a vegan diet，but they thought that parents might not take enough time and effort to plan a vegan diet that included enough nutrients to ensure the best growth in their children.
（1）What is the characteristic of a vegan diet？ DD
A．It's a diet of being low in meat.
B．It s a diet of being rich in cholesterol.
C．It's a diet of being rich in fat.
D．It's a diet without animal products.
（2）What is Dr.Spock's suggestion about the diet？ AA
A．Children over 2 years old shouldn't eat animal products.
B．The vegan diet is widely accepted by most parents.
C．Children over 2 years old should avoid vegetable fat.
D．Parents need less time to prepare meals for children.
（3）What is introduced in the last paragraph？ CC
A．The origin of a strict vegan diet.
B．The effort to make a nutritious diet.
C．The difficulty of planning a strict vegan diet.
D．The details of ensuring enough nutrients for children.
（4）What is the suitable title of the text？ BB
A．How to avoid the fat from the diet
B．Health benefits of vegan diets for kids
C．The shortcoming of eating meat for kids
D．How to create more nutrients for children
【考點(diǎn)】說(shuō)明文．
【答案】D；A；C；B
【解答】
【點(diǎn)評(píng)】
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發(fā)布：2024/4/20 14:35:0組卷：5引用：5難度：0.5
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On the whole，your immune system does a remarkable job of defending you against disease-causing microorganisms.（1）.Is it possible to fight the disease off？What if you improve your diet？Take certain vitamins or herbal preparations？Or make other lifestyle changes？
Now，researchers are exploring several factors，hoping to help you strengthen your immune system.
Lifestyle
（2）.Following general good-health guidelines is the single best step you can take toward naturally keeping your immune system working properly.Every part of your body，including your immune system，functions better when protected from environmental assaults and boosted by healthy-living strategies.
Diet
Like any fighting force，the immune system army marches on its stomach.（3）.Scientists have long recognized that people who live in poverty and are malnourished are more vulnerable to infectious diseases.
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Modern medicine has come to appreciate the closely linked relationship of mind and body.A wide variety of sicknesses，including stomach upset，and even heart disease，are linked to the effects of emotional stress.（4）.
Exercise
Regular exercise is one of the pillars of healthy living.（5）.But does it help to boost your immune system naturally and keep it healthy？Just like a healthy diet，exercise can contribute to general good health and therefore to a healthy immune system.
A.Your first line of defense is to choose a healthy lifestyle
B.But sometimes it fails：A virus then invades and makes you sick
C.Healthy immune system warriors need good，regular nourishment
D.Scientists are actively studying the relationship between stress and immune function
E.That doesn't mean the effects of lifestyle on the immune system shouldn't be studied
F.It lowers blood pressure，helps control body weight，and protects against a variety of diseases
G.Despite the difficulties in measuring the relationship of vitamins to immunity，scientists are making progress發(fā)布：2025/1/1 12:30:1組卷：0引用：2難度：0.5 -
2．The San Diego County Water Authority has an unusual plan to use the city's San Vicente Reservoir（水庫(kù)）to store solar power.The project could help unlock America's clean energy future.
Perhaps ten years from now，large underground pipes will connect the lake to a new reservoir built about 1100 feet higher.When the sun is high in the sky，California's rich solar power will pump （泵水） water into that upper reservoir.When the sun goes down，the force of water would produce 500 megawatts （百萬(wàn)千瓦）of electricity for up to eight hours. "It's a water battery!" says Neena Kuzmich，director of engineering for the water authority.
The technology that San Diego puts forward is already in use at more than 40 sites in the US.Some of them were built during the 1970s to store electricity produced by nuclear power plants.Now，the need to store power from renewable sources is bringing this old technology back.
Water batteries have many competitors，when it comes to storing energy.However，they have their own advantages.Water batteries are a proven way to store large amounts of power.The San Vicente project would store about as much electricity as the batteries in 50，000 of Tesla's Model 3 cars.They also don't require hard-to-find battery materials.The biggest problem with them is that it is hard to find places to build them.They need a great deal of water，land to build two reservoirs and permission to damage the landscape.
Kelly Catlett，director of an environmental organization，says， "We won't support projects that build new damns on rivers and damage ecosystems.But San Diego's plan looks like something different，because it uses an existing reservoir and doesn't damage any streams."
（1）What's the main idea of Paragraph 2？
A．What a water battery is.
B．How the project will work.
C．Why reservoirs are needed.
D．What the clean energy future is.
（2）What is the advantage of water batteries over their competitors？
A．They can power Tesla's cars.
B．They can store renewable sources.
C．The battery materials are easy to get.
D．The technology applied is a new breakthrough.
（3）What is the biggest challenge for water batteries？
A．Damage caused to nature.
B．The shortage of solar power.
C．Limited ability to store energy.
D．Proper places for construction.
（4）What is Kelly Catlett's attitude towards the project？
A．Unconcerned.
B．Worried.
C．Supportive.
D．Doubtful.發(fā)布：2025/1/1 12:30:1組卷：14引用：7難度：0.3 -
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（2）This can be a great way to enrich your social connections and learn interesting things about the people who are around you.So you can choose a person around you and then talk with him.
Have some fun. （3）For example，you can hang out with friends or take up a hobby that you are always interested in.Set aside some time during the week，during which you can spend your energy in having a good time.
Try something new.Whether it is taking a new way to work，watching a new show，or signing up for some kind of class， （4）This can help add the beautiful scenery to your life and may give you a totally new life.
Be spontaneous （自發(fā)的）.If you are bored with some part of your life，start trying to live in the moment. （5）Say yes to the experiences that are without any plans and do not be afraid to do the unexpected things.
A．Start a conversation.
B．a(chǎn)ccept what you are feeling.
C．Try to head outdoors for a walk.
D．Do things that are not carefully pre-planned.
E．Spend some time on an activity you truly love.
F．explore the world around you in new and different ways.
G．So look for ways you can add some different experiences to each day.發(fā)布：2025/1/1 12:30:1組卷：8引用：3難度：0.5
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