Blue whales are the largest animals in the world．But they are amazing（1） because of their huge size， but their slow heartbeat．
For the first time， scientists have researched the（2） of a blue whale．They found （3） when blue whales dive（潜水） for food， their heart rates（心率） are as（4） as 2 beats per （每） minute（bpm）．Scientists used to（5） that their diving heart rate was 15 bpm．When the whales go to the ocean's（6） to breathe， their heart rate is between 25 and 37 bpm．
Usually， the larger an animal is，（7） its heart beats， since it takes more time to pump （输送） blood around（8） body．Shrews， the smallest mammals（哺乳动物） ， have a heart rate of up to 1，000 bpm．Humans usually stay between 60 and 100 bpm．
（9） slowing their heart rate， blue whales can send more blood to the muscles（肌肉） that they use（10） ．These muscles become stronger， allowing the whales to dive for longer periods of time．
（1）A．neither |
B．either |
C．not only |
D．although |
（2）A．heartbeat |
B．body size |
C．diving |
D．food |
（3）A．it |
B．that |
C．once |
D．if |
（4）A．many |
B．little |
C．fast |
D．slow |
（5）A．regard |
B．expect |
C．think |
D．doubt |
（6）A．bottom |
B．surface |
C．center |
D．side |
（7）A．the slower |
B．slower |
C．the faster |
D．faster |
（8）A．it's |
B．its |
C．his |
D．her |
（9）A．By |
B．In |
C．On |
D．At |
（10）A．to pump blood |
B．to eat |
C．to breathe |
D．to dive |
完形填空（共15小题，每小题1分，计15分）
A teacher began his class by holding up a glass of water. He asked the students, “How much do you think this glass ?”
“Fifty grams!” “One hundred grams!” “One hundred and fifty grams!” the students answered.
“I don’t know either,” said the teacher. “What would if I held it up like this for a few minutes?”
“ ,” the students said.
“OK. What would happen if I held it up like this for an hour?”
“Your would ache,” said a student.
“You’re right. Now what would happen if I held it for a day?”
“Your arm would go numb (麻木的). You may have to go to a !” said another student, and all the students laughed.
“Very good. But during all this, did the weight of the glass ?” asked the teacher.
“No.”
“Then what the pain and numbness?”
The were puzzled (困惑的) .
“What should I do now to get rid of (消除) the ?” asked the teacher again.
“Put the glass !” said a student.
“ Exactly!” said the teacher. “Life’s problems are like this. Hold them for a few in your head and they seem OK. them for a long time and they begin to ache. Hold them even and they begin to make you numb. You will not be able to do anything.”
It’s important to think of the challenges or in your life. But what’s even more important is to “put them down” at the end of every day.
A．costs B．has C．weighs D．fills
A．complete B．happen C．reply D．disturb
A．Everything B．Something C．Anything D．Nothing
A．foot B．finger C．arm D．head
A．library B．hospital C．museum D．office
A．change B．go C．improve D．raise
A．caused B．carried C．controlled D．collected
A．teachers B．students C．glasses D．weights
A．pain B．water C．glass D．stress
A．away B．up C．down D．off
A．nothing B．anything C．everything D．something
A．minutes B．hours C．days D．weeks
A．Talk with B．Talk about C．Think about D．Think with
A．shorter B．longer C．lighter D．heavier
A．joy B．happiness C．excitement D．Problems
完形填空（共10小题，计分10分）
Do your parents make you do lots of after-school activities? My parents did. I used to listen to them. But now, I decide to think for .
My parents made me do a lot of after-school activities: taking guitar lessons, taking class, playing tennis and doing different kinds of other things. I didn’t like many of them. I often asked my parents to stop me. This year, I will stop some activities. I decide to the guitar because I don’t like to play it at all. I think I can learn English by myself at home, I won’t go to the English class any more.
My mother doesn’t think that I get enough . But I don’t think so. I walk two miles to school every day. I think that is for me. So I don’t want to play tennis. One day, my mother me to go to a swimming club, but I refused. She was and said,“The more you study, the more skills you will have, and then the more independent you will be. she’s right, but I really don’t want to go.
Dear friends, am I right? What will you do if you meet the situation?
A．herself B．themselves C．myself D．ourselves
A．Chinese B．English C．math D．science
A．dropping B．offering C．beating D．pushing
A．give up B．make up C．take up D．set up
A．and B．so C．but D．or
A．exercise B．food C．sleep D．study
A．bad B．easy C．important D．enough
A．allowed B．hated C．asked D．helped
A．nervous B．excited C．angry D．glad
A．Instead B．Maybe C．However D．Anyway
完形填空（共15题，每小题1分，计15分）
A thirsty bee went to a river to drink. As it , the running water carried it away. A kind bird saw that the bee was in . It picked off a tree and threw into the water in front of the bee. The bee climbed the leaf, and the leaf brought it to the land. The bee thanked the bird a lot and then away.
Not that, the bird was sitting the branch (树枝) of a tree. It didn’t know that a man was shooting (射杀) at it. the bee saw what the man was doing. So it flew into the man’s and stung（刺蜇）him. The pain in the man’s eye was great that he couldn’t shoot the bird, and the bird flew away quickly.
this way the kind bird saved the bee and the bee was able the life of the bird. So we can say helping others is helping .
A．drank B．drinking C．is drinking D．was drinking
A．a trouble B．a trouble C．dangerous D．danger
A．a leaf B．leaves C．leaf D．the leaf
A．them B．one C．it D．this
A．onto B．on C．to D．at
A．safety B．safe C．saved D．safely
A．climbed B．ran C．flew D．got
A．long before B．before long C．after long D．long after
A．in B．on C．at D．by
A．And B．But C．So D．Or
A．eye B．nose C．mouth D．ear
A．very B．so C．quite D．too
A．In B．On C．By D．At
A．saved B．saving C．to save D．save
A．you B．your C．yours D．yourself
完型填空。阅读下面的文章，掌握其大意，然后从各题所给的A、B、C、D四个选项中，选择最佳选项，写在题前的括号里。（每题1分，共10分）
Hello, I’m Mary. I’m 12. I a little brother. He is 10 years old. name is Bill. We have different hobbies(爱好).
I like TV very much. Our TV is the living room(客厅). I like watching basketball games on TV. I think they’re . I like fruit, such as apples, and so on. I also like carrots and eggs. I eat a lot of . Bill likes computer games. He thinks they’re fun, I think they’re boring. Bill fruit, but he likes French fries and ice-cream. And he also likes hamburgers. I don’t think they’re . So I don’t eat them often.
A．am B．is C．have D．has
A．He B．She C．His D．Her
A．watching B．watch C．watches D．watched
A．near B．on C．in D．under
A．easy B．interesting C．difficult D．boring
A．carrots B．pears C．chicken D．salad
A．they B．them C．it D．/
A．but B．and C．so D．also
A．likes B．like C．doesn’t like D．don’t like
A．health B．healthily C．healthy D．a healthy
完形填空
Helen is a student. She usually gets up at 6:00 in the morning. Then she has at 6:30 a.m. She goes to school 7:00 a. m.. She is never late for school(从不迟到). Helen is a clever girl, she doesn’t have any friends. One morning , on her way to school, she finds yellow cat. She thinks,“The cat can’t find way home.” So she it to the zoo.Then she hurries(急忙) to , but she is late. All the students and her look at her. Her face looks red. After class, her teacher says to the students.“Helen is a girl. She finds a cat and takes it to the .”Now all her classmates like her.
A．breakfast B．lunch C．dinner D．picnic
A．of B．in C．at D．to
A．and B．but C．if D．so
A．a B．an C．the D．/
A．my B．your C．their D．its
A．to take B．taking C．takes D．take
A．school B．zoo C．home D．farm
A．father B．teacher C．Brother D．sister
A．new B．strong C．heavy D．kind
A．class B．school C．zoo D．hospital