There are many brave and talented people who work in different branches （分科，分支） of science．Extreme （另类的）scientists are people who work in very difficult and dangerous places．They don't work in a（1） all the time like other scientists do．Instead，they search（2） information that can only be gathered through firsthand experiences．These scientists have to explore deep，dark caves，swim with sharks or act as swan（天鹅） mothers．The number of great white sharks in the world（3） smaller now． They are one of（4） animals on Earth．
Scientists need to find out how many sharks（5） now．Sometimes scientists have to get very close to a shark．The easiest and（6） way to do this is from inside a shark cage（笼子）．（7） ，sometimes sharks attack（袭击，攻击） the cage．They shake it，and bend the bars with their sharp（8） ．The trumpeter swan is the largest swan in the world，but it （9） until it nearly became endangered birds． Because of this，parents swans （10） younger swans to migrate before．
Scientists have to teach the younger swans how to do it．They teach the swans to follow a plane which looks like a lead swan． Extreme scientists are always trying to discover something new．
（1）A．hospital |
B．factory |
C．lab |
D．hotel |
（2）A．for |
B．to |
C．of |
D．at |
（3）A．get |
B．is getting |
C．was getting |
D．got |
（4）A．dangerous |
B．more dangerous |
C．most dangerous |
D．the most dangerous |
（5）A．there were |
B．are there |
C．there are |
D．were there |
（6）A．safest |
B．closest |
C．farther |
D．faster |
（7）A．Lovely |
B．Unlovely |
C．Luckily |
D．Unluckily |
（8）A．teeth |
B．tooth |
C．eye |
D．eyes |
（9）A．kills |
B．killed |
C．was killed |
D．is killed |
（10）A．won't teach |
B．have never taught |
C．wouldn't teach |
D．don't teach |
Earth Hour(地球一小时) is a global event organized by World Wildlife Fund (WWF) and it is held on the last Saturday of March every year. It asks people to 26 their lights and other electrical appliances(电器) like computers for one hour. In this way, people can pay 27 attention to the climate(气候) change and know that it’s important to save the earth.
Earth Hour first28 in Sydney in 2007. More cities around the world followed Sydney’s lead in 2008. 29 March 28, 2009, 88 countries and more than 4,000 cities joined Earth Hour. From 8:30 p.m. to 9:30 p.m., Beijing, Dalian, Hangzhou, Hong Kong and many 30 cities in China took the action, too. 31 shops closed and people used candles at home. The UN said that it32 save the energy(能量).
The world seems to be a dark world 33 the lights are turned off. However, people are trying to do something to save the 34 in such beautiful “dark moment”. This year, WWF encourages people to make a small change for the environment every day. Now,35 you join us?
A．turn on B．turn down C．turn up D．turn off
A．more B．little C．few D．less
A．started B．stopped C．comes out D．begins
A．In B．At C．On D．To
A．others B．other C．the other D．another
A．Thousand of B．Two thousands C．Thousands of D．Two thousand of
A．would help B．will help C．has helped D．helps
A．so that B．when C．until D．before
A．shops B．world C．cities D．earth
A．do B．could C．may D．are
你肯定听说过”早睡早起身体好” 这句著名的俗语吧。为什么这么说呢？请看下文找找依据吧，然后让自己养成良好的生活习惯。
There is an old saying. It tells us we must go to bed 26 and get up early in the 27 .Then we will be 28 .We will also be rich and 29 .That is right .The body must have enough sleep to be healthy .Children of young age should have 30 hours sleep every night. Children who do not have enough sleep 31 do their work well and 32 may not be healthy.
The body also 33 exercise .Walking ,running ,jumping and playing games are all exercise .Exercise keeps the body strong . Exercise also helps the blood (血液) to move around inside the body. It’s very 34 .Our blood moves to all parts of our body. The head also needs blood So exercise also helps us to __35___ better.
A．late B．early C．happy D．good
A．room B．afternoon C．morning D．evening
A．healthy B．important C．angry D．easy
A．boring B．smart C．thirsty D．weak
A．ten B．five C．fifteen D．twenty
A．can B．can’t C．should D．shouldn’t
A．it B．they C．we D．you
A．wants B．needs C．does D．gets
A．easy B．important C．good D．same
A．run B．think C．walk D．jump
This is a picture of Mr. Green's family. __1 the picture we can see Mr. green, Mrs. Green, their son Jim 2 their daughter Susan. Mr. Green is _3in a chair. He is_4a newspaper. Mrs. Green _5 some housework. Jim is a Middle School student. He is reading a book near the window.
Look at 6 She is playing with her toys _7 the floor. She is Mr. Green and Mrs. Green's daughter, Susan_8 that behind Susan? It's a_9 . What's the cat doing? It's playing 10 a ball.
A．In B．On C．At D．About
A．or B．and C．with D．but
A．sit B．sits C．sitting D．to sit
A．watching B．looking C．seeing D．reading
A．is doing B．doing C．do D．is do
A．the boy B．the little girl C．the student D．the cat
A．in B．on C．at D．of
A．What B．What're C．What's D．Which on
A．boy B．girl C．cat D．son
A．with B．and C．of D．at
There1 three people in my family------my father, my mother and I. My father is a 2 . And he works in a bank. He thinks it's a 3 job. He wants 4 a policeman. My mother is a teacher. She 5 in a middle school. She thinks her job is very 6 . She works hard 7 often comes back home very late. In her free time(空闲时间）, she likes8 stories 9 a magazine. I study at a middle school. I like 10 . I want to be a singer when I grow up.
A．have B．is C．are D．has
A．doctor B．bank clerk C．waiter D．reporter
A．boring B．interesting C．exciting D．dangerous
A．be B．is C．to be D．being
A．teach B．wants C．work D．teaches
A．dangerous B．difficult C．interesting D．boring
A．and B．but C．or D．so
A．write B．writes C．writing D．to writing
A．in, B．for C．as D．at
A．dancing B．singing C．writing D．working
用所给词的适当形式完成下列短文
Christmas was coming. A lot of 1 were going to town. They hoped to 2 some vegetables, fruit and meat in the market. And then they were going to buy some3 for their families. A bus came. They tried to 4 . Robert, a strong young man, rushed in first. He occupied(占)two 5 : one for his girl friend Mable and the other for himself.
The bus started. Robert had a look 6 the bus. He saw a lot of people 7 there. There were some old men among them. He hurried to 8 his eyes. Mable found it and thought he felt 9 and asked, “What’s wrong with you, dear?”“ 10 ,”answered the kind-hearted (好心肠) young man. “I can’t bear (忍心) to see the poor old men!”
A．workers B．soldiers C．farmers D．drivers
A．lend B．sell C．borrow D．show
A．books B．pens C．newspapers D．presents
A．get on B．get off C．life D．sit down
A．tables B．seats C．boxes D．steps
A．after B．for C．up D．around
A．standing B．sitting C．lying D．sleeping
A．touch B．look over C．open D．close
A．terrible B．sad C．happy D．dangerous
A．Something B．Anything C．Nothing D．Everything