题目内容
（请给出正确答案）
What DOCS SALT WATER DRAFT means ()_.
A.It means summer draft
B.It means Maximum draft
C.It means Fresh Water draft
D.It means Seawater Draft
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更多“What DOCS SALT WATER DRAFT means （)_.A.It means summer draftB.It means Maximum draftC.It m”相关的问题
______make the seaside what it is.
A．Sand, salt water and warm sunshine
B．New things to do
C．Nice things to eat
D．Exciting things to do
What substance was first used to fix the images？
A．Copper powder
B．Table salt
C．Mercury vapor
D．Hot water
What is the topic of this talk？
A．The salinity of the ocean.
B．Pollutants found at sea.
C．The composition of coral reefs.
D．The weather patterns of coastal areas.
根据材料，完成题。
Teach Your Child Science
1. It is important to make your child interested in science from an early age. Most young children ask a lot of questions and you should give careful scientific answers.Don&39;t only give facts but try to give explanations as well.
2. Science is not just knowledge ; it is a way of thinking, a method of finding out about the world. We see something.We try to explain it, and we test our idea by setting up all experiments. One day you come home and find the plant on the table has fallen over. You think it might be the wind from the open window or the cat. So you close the window, but leave the cat in and see what happens (you can also try leaving the window open and shunning the cat out ) . Of course, you remember there may be a third explanation.
3. Ask your child to get a piece of string, some salt, a glass of water and an ice Cube (冰块 ) . Tell her to put the ice in the water, and then put one end of the string on the ice, leaving the other end over the side of the glass. Put a lime salt on the ice, wait a minute, and then pull the string, it should be attached to the ice. Ask the child : "what has happened？"
4. Probably she won&39;t know. Ask her whether fresh water or salt water freezes into ice first. If you live near the sea and have a cold winter, she should know fresh water freezes first as she will have seen that happen. Show her how to test the idea by half-filling two paper cups with water. Then put them in the icebox and check
every three minutes. Write the results in a table. The conclusion will be that salt changes the behavior. of water,thinking about the string, we see the salt turned some of the ice into water. Then the salt went away into the water and the ice froze again leaving the string attached.
5. Then you can ask, "Will water with salt boil at the same temperature as water without salt？" She can think, tell you her idea and (taking care the heat ) you can test it in the kitchen.
Paragraph 1 __________？ 查看材料
A.What exactly is science.
B.How do you find an explanation.
C.What topics do you need.
D.How do you answer your child"s questions.
E.Where does your child study science.
F.How do you set up the experiment on salt and water，
根据下列文章,请回答 23～30 题。
Teach Your Child Science
1 It is important to make your child interested in science from an early age. Most young children ask a lot of questions and you should give careful scientific answers. Don't only give facts, but try to give explanations as well.
2 Science is not just knowledge; it is a way of thinking, a method of finding out about the world. We see something. We try to explain it, and we test our idea by setting up an experiment. One day you come home and find the plant on the table has fallen over. You think it might be the wind from the open window or the cat, so you close the window, but leave the cat in and see what happens (you can also try leaving the window open and shutting the cat out). Of course, you remember there may be a third explanation.
3 Ask your child to get a piece of string, some salt, a glass of water and an ice cube (冰块). Tell her to put the ice in the water, and then put one end of the string on the ice, leaving the other end over the side of the glass. Put a little salt on the ice. Wait a minute, and then pull the string; it should be attached to the ice. Ask the child: "What has happened？"
4 Probably she won't know. Ask her whether fresh water or salt water freezes into ice first, If you live near the sea and have a cold winter, she should know fresh water freezes first as she will have seen that happen. Show her how to test the idea by half-filling two paper cups with water, adding salt to one. Then put them in the icebox and check every three minutes, Write the results in a table. The conclusion will be that salt changes the behaviour of water. Thinking about the string, we see the salt turned some of the ice into water. Then the salt went away into the water and the ice froze again leaving the string attached.
5 Then you can ask, "Will water with salt boil at the same temperature as water without salt？" She can think, tell you her idea and (taking care because of the heat) you can test it in the kitchen.
第 23 题 Paragraph 1
A．What exactly is science？
B．How do you find an explanation？
C．What topics do you need？
D．How do you answer your child's questions？
E．Where does your child study science？
F．How do you set up the experiment on salt and water？
Teach Your Chlld Sclence
1．It is important to make your child interested in science from an early age. Most young children ask a lot of questions and you should give careful scientific answers. Don't only give facts, but try to give explanations as well.
2．Science is not just knowledge; it is a way of thinking, a method of finding out aboutthe world. We see something. We try to explain it, and we test our idea by setting up an experiment. One day you come home and find the plant on the table has fallen over. You think it might be the wind from the open window or the cat, so you close the window, but leave the cat in and see what happens (you can also try leaving the window open and shutting the cat out). Of course, you remember there may be a third explanation.
3．Ask your child to get a piece of string, some salt, a glass of water and an ice cube (冰块). Tell her to put the ice in the water, and then put one end of the string on the ice,leaving the other end over the side of the glass. Put a little salt on the ice. Wait a minute,and then pull the string; it should be attached to the ice. Ask the child: “What has happened？"
4．Probably she won't know. Ask her whether fresh water or salt water freezes into ice first. If you live near the sea and have a cold winter, she should know fresh water freezes first as she will have seen that happen. Show her how to test the idea by half-filling two paper cups with water, adding salt to one. Then put them in the icebox and check every three minutes. Write the results in a table. The conclusion will be that salt changes the behaviour of water. Thinking about the string, we see the salt turned some of the ice into water. Then tho salt wont away into the water and the ice froze again leaving the string attached.
5．Then you can ask, "Will water with salt boil at the same temperature as water without salt？" She can think, tell you her idea andyou can test it in the kitchen. (take care because of the heat) A．What exactly is science？
B．How do you find an explanation？
C．What topics do you need？
D．How do you answer your child's questions？
E．Where does your child study science？
F．How do you set up the experiment on saltand water？
第 23 题 Paragraph 1______________
Of course, scientists can't answer all of your questions. If we ask, "Why is the ocean full of salt？" scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks. Rain falls into the cracks. The rain then carries the salt into he earth and into the rivers. The rivers carry the salt into the ocean. But then we ask, "What happens to the salt in the ocean？ The ocean doesn't get more slat every year." Scientists are not sure about the answer to this question.
We know a lot about our world. But there are still many answers that we do not have, and we are curious.
The main idea of this passage is ______.
A．people feel cool when they are near a lake or river
B．scientists can explain everything we want to know
C．scientists can explain many things but not everything
D．the salt in the ocean comes from rocks
Of course, scientists can't answer all of your questions. If we ask, "Why is the ocean full of salty" scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks. Rain falls into the cracks. The rain then carries the salt into he earth and into the rivers. The rivers carry the salt into the ocean. But then we ask, "What happens to the salt in the ocean？ The ocean doesn't get more slat every year". Scientists are not sure about the answer to this question.
We know a lot about our world. But there are still many answers that we do not have, and we are curious.
The main idea of this passage is ______.
A．people feel cool when they are near a lake or river
B．scientists can explain everything we want to know
C．scientists can explain many things but not everything
D．the salt in the ocean comes from rocks
What does the speaker say about the ocean's level of saltiness？
A．The level of saltiness in the ocean is extraordinarily high.
B．The average level of salinity in the ocean is higher than that of inland lakes.
C．Salt has been gradually accumulating in the ocean, which leads to a rise in oceanic salinity level.
D．Salt has accumulated very quickly at the early stage of life formation, then this process gradually slow down.
Many people believe they are suppose to drink eight glasses of water a day, or about 【S1】______
two liters. What？Because that is what they have been told all their life.But a new report【S2】______
offers some different advice. Experts say people should obey their bodies; they should
drink as much water as they feel like drink. 【S3】______
The report contains some general suggestion. The experts say women should get
about two-point-seven liters of water day. Men should get about three-point-seven liters.【S4】______
But wait--in each case, that is more than eight glasses.
There is an important difference. The report does not tell people how many glasses
of water to drink. In fact, the experts say it may be possible to know how many glasses 【S5】______
are needed to meet these guidelines. This is because the daily water requirement can
include the water content in foods.
People need to drink more water when they are physically active.The same is true
of those live in hot climates.Depending on heat and activity, people could need two times【S6】______
so much water as others do. 【S7】______
All this, however, docs not answer one question. No one seems sure why people
have the idea that good health require eight glasses of water daily. 【S8】______
It may have started with a misunderstanding. In nineteen-forty-five, the National
Academy of Sciences published some guidelines. Its Food and Nutrition Board said a
good number of water for most adults was two-point-five liters daily. This was based on 【S9】______
an average of one milliliter for each calorie of food eat.But that was only part of what【S10】______
the board said. It also said that most of this amount is contained in prepared foods.
【S1】
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