As we all know, the ocean moves. But waves breaking on the beach make the ocean fun. When you stand on the shore and look at the waves, it seems like the water is moving towards you. But the water is not really moving forward. The moving you see is wave energy. And wave energy comes from the wind.
Let’s think about how this works. As wave energy passes through the water, the energy makes particles （粒子） of water move up and down. Just give you an example of a wave passing under a basketball. We put a basketball on the sea. When the wind blows, a wave comes from behind the basketball. The basketball moves up to the top with the wave. Then the wave continues and leaves the basketball behind. The basketball looks lower, but it doesn’t move forward. That’s because the wave energy just moves the water which is under the basketball.
　  So why can you see a wave knock you down on the shore？When a wave moves toward the shore, the bottom of the wave slows down because it meets the ocean floor. But the top, which is called crest(浪峰), keeps moving. The different action causes the wave to fall over or break onto the shore. If a wave is very large, it carries a lot of energy when it hits the land. As time goes by, waves can break up and carry away the rocks and other things on the shore. Shorelines are changing all the time because of wave action.
小題1:______ is really moving forward when you look at the wave.
A．WaterB．The basketballC．Water and wave energyD．Wave energy
小題2:Match the sentences with the pictures and the right answer.
(1) The basketball moves up to the top with the wave.
(2) The basketball continues and leaves the basketball behind.
(3) When the wind blows, a wave comes from behind the basketball.
A．a(chǎn)—(2) b—(1) c—(3)B．a(chǎn)—(3) b—(1) c—(2)
C．a(chǎn)—(1) b—(3) c—(2)D．a(chǎn)—(3) b—(2) c—(1)
小題3:Which of the following is NOT true according to the passage?
A．Wave energy comes from the water.
B．Large waves carry plenty of energy.
C．Wave action makes shorelines change all the time.
D．The bottom of the wave is easy to slow down.
小題4:The underlined word “it” ( Paragraph 3) refers to “________”.
A．particles of waterB．the shoreC．the windD．the bottom of the wave
小題5:The main idea of this passage is ______.
A．what makes particles of water moveB．how a basketball moves on the ocean
C．how wave energy causes wave actionD．why a wave can knock you down

小題1:D
小題2:B
小題3:A
小題4:D
小題5:C

試題分析：這篇短文主要介紹了波浪的形成原理和其運(yùn)動(dòng)特點(diǎn)。
小題1:根據(jù)第一段When you stand on the shore and look at the waves, it seems like the water is moving towards you. But the water is not really moving forward. The moving you see is wave energy.描述，可知選D。
小題2:根據(jù)圖片可知風(fēng)力來自左邊，結(jié)合短文第二段描述，可知搭配正確的一組是B。
小題3:根據(jù)And wave energy comes from the wind.描述，可知選A。
小題4:聯(lián)系前文描述，可知這個(gè)代詞指的是海浪的下部，故選D。
小題5:這篇短文主要介紹了波浪能是如何引起波浪作用的。故選C。
點(diǎn)評(píng)：本文中長句較多，一時(shí)很難讀懂句子含義，注意多讀幾遍，不要強(qiáng)求非得理解一詞一句的含義，能把握文章大意就行。然后帶著問題閱讀短文，一般就能順利找出答題依據(jù)。對(duì)于不能直接找到根據(jù)的問題注意聯(lián)系上下文，根據(jù)短文中心總結(jié)出正確答案。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中英語 來源：不詳 題型：閱讀理解

Zhang Zhaojie, a 13-year-old schoolboy in Xiamen enjoyed many snacks during Spring Festival. “I love chocolate and chips very much. They are high in sugar and fat. But I can’t help eating them,” Zhang said.
Recently, an online list of favorite snacks in China became popular. It said that peanuts, walnuts and chocolate are good for our health, and jelly, potato chips and lollipops(棒棒糖) are “bad”. Almost every kid on the planet loves snacks, and they seldom care how healthy they are. Although some snacks like chocolate and candy are found everywhere, others are unique(獨(dú)特的) to a country or a culture.
In Japan, Matcha(抹茶) is a kind of green tea powder. It’s made from tea leaves and can be used with ice cream or cakes. In fact, Matcha originated in China but took off in Japan. Biscuits or cookies covered with chocolate are also a Japanese favorite.
Potato chips and French fries are very popular in the US. They are cheap but tasty. But they are high in calories and eating too much may make you fat. Popcorn(爆米花) is another typical snack. People eat it when they are watching sports games or visiting the amusement park. Most cinemas also sell Popcorn.
In the UK, many people sit down for snacks at around 4 p.m. every day. They call it “afternoon tea”. Traditional afternoon tea is biscuits and tea. People also have scones(烤餅) with jam and cream, which is probably the most classic English snack.
Countries   Snacks  What it is like
Japan   Matcha ★a kind of green tea powder made from 小題1:______
★often used with ice cream or cakes
Biscuits or cookies ★usually have 小題2:______ on them
The US 小題3:_______   ★cheap and tasty
Popcorn ★when watching sports games and 小題4:_______
★when visiting the amusement park
The UK  Biscuits and tea   ★the traditional afternoon tea
Scones ★eaten with小題5:________________

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

A person has been badly injured in a car accident. It is necessary to give him a transfusion (輸血) because he has lost much blood in the accident. However, special care must be taken in selecting new blood for him. If the blood is too different from his own, the transfusion can kill him.
There are four basic blood groups: A, B, AB and O. A single test can tell us a person’s blood group. Everybody is born with one of these four blood groups. People’s blood group, like hair colour, is inherited (繼承) from parents.
Because the substances contained in each group are different, transfusion must be given carefully. Basically, A and B cannot be mixed. A and B cannot receive AB, but AB may receive A or B. O can be given to any other group, so it is often called the universal donor. On the contrary, AB is sometimes called the universal recipient (接受者). However, before being given the transfusion, patients usually receive only salt or plasma (血漿) until their blood can be matched as exactly as possible. In this way, it is possible to avoid any bad results of the transfusion.
There is a relationship between our blood groups and our nationalities. Among the Europeans, about 42 percent are blood group A while 45 percent are blood group O. The rarest is blood group AB. However, some American Indian groups are nearly 100 percent blood group O.
小題1:Which of the following shows the correct relationship in blood transfusion? (→ =" giving" blood to)

小題2:Usually, before being given a transfusion, ________.
A．a(chǎn) person needs to receive salt or plasma first
B．a(chǎn) person needs to have a good rest
C．a(chǎn) person needs to have a lot of food and water
D．a(chǎn) person needs to find the person with the same blood group as him
小題3:The third most common blood type among the Europeans is _______.
A．AB．BC．ABD．O
小題4:Which is NOT right according to the passage?
A. A person’s blood group depends on his parents.
B. There is only one kind of blood group in a person’s body.
C. About 13 percent of the Europeans have blood group AB.
D. Most of American Indians can be universal blood donors.
小題5:Which is the best title for the passage?  
A．Blood transfusionB．Blood groups
C．Car accidentsD．Blood group and nationalities

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解



Growing mushrooms（蘑菇）is probably the easiest thing you can do even if you are new to mushroom growing. It is becoming more common because restaurants are starting to create more dishes that include mushrooms.
Mushroom growing is easy. To start, you need to have a space where you are going to grow these mushrooms. It does not have to be a huge space but just enough for you to grow as many mushrooms as you need. When you have found the space perfect for you, you can start researching what kind of mushrooms you want to grow. There are a lot of mushrooms to choose from and not all of them are suitable to eat.
When you decide what kind of mushrooms you want to grow, you can start getting ready to plant the mushrooms. Sometimes you may want to hire some workers to help if you have a large mushroom farm, or if you are trying to start a professional mushroom growing business. Trying to have a business by yourself can be stressful. If you don’t have enough time to spend taking care of everything yourself, some helpers may be the best choice.
After you have started the mushroom growing, you should regularly check that your mushrooms grow properly and that they are not being attacked by any pesticides（農(nóng)藥）or any other animals or something that could be dangerous to them. That is the worst part of mushroom developing. Protect your mushroom farm well with a fence（圍欄）or a gate so that only you and your workers can get in and out.
Mushroom growing is not difficult and it is easy to get stared in the world of farming. You will soon possibly be able to provide some of the great cooks of the world with high quality mushrooms that will be enjoyed by thousands of people all over the world.
小題1:According to the passage, many people begin to plant mushrooms probably _________.
A．because they are in great need.B．because they look very beautiful
C．because they are healthy foodD．because they are very expensive
小題2:Which of the following is the right order of planting mushrooms?
a. Choose suitable mushrooms.           b. Protect your mushrooms well.
c. Find some workers to help you.       d. Start to grow the mushrooms.
e. Find a place to plant your mushrooms.
A．c—a—d—b—eB．e—a—c—d—bC．c—a—e—b—dD．e—a—d—b—c
小題3:It can be inferred（推斷）from the passage that __________.
A．pesticides can be used in mushroom growing
B．a(chǎn)nyone can produce high quality mushrooms.
C．a(chǎn)fter starting, you should always take care of the mushrooms
D．having a mushroom business is not so difficult
小題4:According to the passage, which sentence is NOT true?
A．Although you don’t know much about growing mushrooms, you can do it easily.
B．you can choose a suitable space, just big enough for you to grow mushrooms.
C．All mushrooms aren’t suitable to eat.
D．The worst part of mushroom developing is to protect your mushrooms farm well with fence.
小題5:The best title of the passage is __________.
A．Healthy mushroomsB．The value of mushrooms
C．How to choose mushroomsD．Suggestions on growing mushrooms

查看答案和解析>>

科目：初中英語 來源：不詳 題型：完形填空

In the US, 1 you ask kids 2 they want to be when they grow up, you may 3. Some will say they want to be the President, doctors, lawyers or movie stars. But many will say they want to be firefighters (消防員).
Bejing a firefighter is a dangerous job, 4 it doesn’t pay 5 a job in medicine, business or entertainment (娛樂). So why is the idea of 6 a firefighter so popular with kids?
One reason is that firefighters are heroes in the US society. They are strong and brave(勇敢). They risk their own lives (不顧自己的安危) 7 the lives of others.
8 the terrorist attack (恐怖襲擊) in New York 9 September 11, 2001, firefighters became a symbol of national pride (驕傲) and strength (力量). Brave firefighters rushed to save people in the 10 buildings. They 11 save many lives, but many firemen 12. After the attacks, people 13 the US wore hats and T-shirts that said FDNY (Dire Department of New York) to show respect (尊敬) for the firefighters.
To be a firefighter is to be a hero. 14 no surprise that many kids want 15 heroes.
小題1:
A．unlessB．whenC．ifD．whether
小題2:
A．whatB．howC．whereD．why
小題3:
A．be surprisedB．surprisedC．surprisingD．be surprising
小題4:
A．orB．a(chǎn)ndC．butD．if
小題5:
A．a(chǎn)s many as B．a(chǎn)s much asC．a(chǎn)s soon asD．a(chǎn)s possible as
小題6:
A．becomeB．becameC．becomingD．to become
小題7:
A．saveB．savesC．savedD．to save
小題8:
A．AfterB．BeforeC．WhenD．While
小題9:
A．a(chǎn)tB．inC．forD．on
小題10:
A．fellB．feltC．fallsD．falling
小題11:
A．a(chǎn)ble toB．were able toC．can be able toD．were able
小題12:
A．deadB．deathC．diedD．die
小題13:
A．crossB．a(chǎn)crossC．throughD．passed
小題14:
A．This isB．These areC．It’sD．That’s
小題15:
A．to becomeB．becomeC．to getD．get

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

Today is Friday. Peter has six classes today. He goes to school at 7:30 a.m. At 8:00 a.m., he begins his first class. The first class is English. At 9:00 a.m., he has math. Peter likes math because it’s interesting. At 10:00 a.m. she has a biology class. Peter thinks it’s very boring. Then at 11:00 a.m., he has a history class. That’s his favorite subject. He can learn a lot about the past from history.
Peter has lunch at school at about 12:00. Then he has a short break. At 1:30 p.m., he has a music class. At 2:30 p.m., he has a P.E. class. Peter likes this afternoon, because music and P.E. are easy and interesting. School is over at 4:00 p.m. Peter is happy because he can go home and have a good time on Saturday and Sunday.
閱讀短文內(nèi)容，選擇正確答案。
小題1:The second class is ________ on Friday morning.
A．ChineseB．EnglishC．mathD．P.E.
小題2:Peter likes ________ best in all his subjects.
A．mathB．historyC．musicD．biology
小題3:The underlined (下畫線) word "break" means _________.
A．restB．timeC．gameD．class
小題4:Peter likes this afternoon because _________.
A．he likes art and P.E. classesB．he has a history class
C．he has no classD．the classes are easy and interesting
小題5:Which is true(正確的)?
A．Peter gets up at 7:30 in the morning.B．Peter thinks math is difficult and boring.
C．Peter doesn't have lunch at home on weekdays.D．Peter is not happy on Friday afternoon.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

At last, the mid-term exams are over. You’ve done the hard work, but you can’t relax. You have to prepare for the next exams. Do you hate exams? If you do, you are not alone. Students in other countries hate them as well.
Luckily for them, British students have fewer exams than Chinese students. And they only have them once a year. Every summer they take a test in each subject. Each test lasts about an hour. These exams don’t count for much, even if a student does really badly they still progress to the next grade. When the results come out, they are then placed in an end-of-year report. The report is sent to the child’s parents. It describes how the student studied at school.
This report is private, so only the teacher, the student and his or her parents see it. This means that the students don’t know how other students scored(得分) in the test. Some students choose to tell each other, but others keep it secret.
Parents’ meetings are held twice a year, at the end of winter term and then at the end of the summer term. Children go along with their parents to meet their teachers privately and discuss their performance at school.
小題1:For British students, the school life is         than that of Chinese students.
A．more relaxingB．much tenserC．more boringD．much harder
小題2:The underlined phrase “don’t count for much” means           
A．難以計(jì)數(shù)B．不太重要C．期望不多D．難度不大
小題3:Which of the following is NOT true for British students?
A．They have exams once a year.
B．They don’t know their classmates’ scores.
C．Parents’ meetings are held at the end of the terms.
D．They like to tell each other their scores

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解



The London Olympic Games are coming soon. This summer, Chinese sports fans will be able to watch the exciting games in 3-D on CCTV.
When you watch 3-D movies or TV, you have to wear a special pair of glasses. The 3-D glasses make the people and the things on the screen look like they are in the room with you.
3-D, means having three *dimensions: *width, height and *depth. 3-D technology is based on the way the human brain and eye work. Because the *pupils of a person’s eyes are about 6.5cm apart, when we look at something, each eye sees it from different *angle. Our eyes send the two pictures to our brain, and the brain puts them together. The small difference between the picture from the right eye and the picture from the left eye make us see depth.
While watching 2-D films, we don’t have to wear the special glasses. We see the pictures in two dimensions, each eye get the same information. This is because there is only one way of watching it.
So the aim of 3-D technology is to get a different picture into each eye of the person. It uses two film *projectors. One *projects a left eye picture and the other projects a right eye picture. When we are in the cinema, we can see different pictures in each eye at the same time with the help of the 3-D glasses.
While watching 3-D films, we feel that we are actually in the same environment as the things we are watching. However, some people are against watching 3-D films. One of the reasons is the 3-D glasses makes the screen of the film or TV look darker. It is bad for eyes. What’s more, people with eye problems may get headaches if they spend too much time watching 3-D movies, because their brains need to work harder to “read” the pictures.  
小題1:Paragraph 3 mainly tells us __________.
A．how we see things in 3-D B．how we watch the Olympic Games
C．how 3-D films are made D．where we watch 3-D films or TV
小題2:When we watch a 2-D film, each of our eyes get ________ information.
A．noB．differentC．darkD．the same
小題3:Which is the following is right according to the passage?
A．We don’t have to wear 3-D glasses if we watch games in 3-D on TV.
B．The 3-D technology is based on the way the human ear and eye work.
C．All the people can have fun watching 3-D movies or TV for a long time.
D．3-D glasses make us see different pictures in each eye at the same time.
小題4:Why are some people against watching 3-D films? Because ____________.
A．they make them more excited or sadder
B．3-D glasses make the screen look darker
C．3-D films make all people get headaches
D．they dislike watching the Olympic Games

查看答案和解析>>

科目：初中英語 來源：不詳 題型：完形填空

完形填空．
Many middle school students like   1  very much．But  2  Friday they must  go to school．So on saturday they  3  at home and watch TV from morning to night．They don't know it's bad for their  eyes．Usually children like to eat fish．meat and chicken，don't 1ike vegetables  4  fruit．They don't know that  5  more  vegetables and fruits i s  6   than eating meat．
At school the children only do a few minutes of sport or  7 do any sport．The students must know it  isn't  good for   8   health，too．
We already think of ways to keep  9  ．We must eat  10  vegetables and fruit，do enough(足夠)sport every day．And we should watch TV and read in right wavs．
小題1:
A．watch TVB．watch the TVC．watching TVD．watching the TV
小題2:
A．on Monday andB．on Monday and onC．from Monday andD．from Monday to
小題3:
A．stayB．1iveC．sitD．1eave
小題4:
A．a(chǎn)ndB．withC．orD．but
小題5:
A．buyingB．eatingC．gettingD．keeping
小題6:
A．goodB．betterC．badD．worse
小題7:
A．oftenB．sometimesC．usuallyD．never
小題8:
A．themB．theyC．theirD．theirs
小題9:
A．healthB．healthyC．busyD．free
小題10:
A．moreB．muchC．a(chǎn) lot ofD．1ittle

查看答案和解析>>

同步練習(xí)冊(cè)答案