Laboratory　work　is　your　chance　to　learn　science　firsthand.　It　can　be　fun　but　you　must　be　careful　to　prevent　injury.　Listen　closely　when　your　teacher　reads　and　explains　the　rules　before　your　first　lab　lesson.
LABORATORYRULES
Throughout　the　lesson
·Do　not　enter　the　science　lab　without　the　teacher’s　permission.·No　food　or　drinks　are　to　be　alowed　in　the　science　lab.
Before　the　Experiment
·Read　al　instructions　carefuly　before　every　experiment.
·Prepare　al　apparatus（仪器）and　arrange　them　so　that　you　wil　not　knock　them　over　while　doing　the　experiment.
During　the　Experiment
·If　you　are　unsure　of　how　to　use　any　apparatus　or　how　to　operate,　ask　your　teacher　for　help.·Never　smel　or　taste　chemicals　unless　your　teacher　gives　permission.
After　the　Experiment
·Wash　al　apparatus　after　use　and　return　them　to　the　places　where　they　were.
·Throw　waste　materials　in　proper　waste　baskets.　　　　First　Aid　　　　
·Report　al　accidents　to　your　teacher　immediately.
·If　you　spil（ 溅 出 ）any　chemicals　onto　your　body　or　clothing,　wash　with　plenty　of　water　and　report　to　your　teacher.
【小题1】　Your　teacher　wil　probably　tel　you　the　rules　above　_____　the　first　lab　lesson.

A．taste　the　chemicals　first

B．clean　al　the　apparatus

C．read　al　instructions　carefuly

D．report　al　the　accidents　to　the　teacher

A．bring　food　into　the　lab
B．enter　the　lab　anytime
C．smel　chemicals　as　you　like	D．learn　science　directly　in　the　lab

A．Before　the　Experiment

B．First　Aid

C．During　the　Experiment

D．After　the　Experiment

完形填空(共15小题;每小题1分,满分15分)
46 blind, deaf, unable to walk or use your hands easily is something that most people can’t imagine. But many people ­­47  these challenges 48  Liz Smith. Liz can’t use her arms or legs well, and normal things like answering the telephone,opening and 49  the door or carrying things have always been difficult for her.Then one day last year,a friend of her said that she would like to help her out. She talked to “Animal Helpers ” to see if it would be possible for her to get a specially 50  dog.
51  six months of training with a dog at “Animal Helpers”, Liz smith was able to 52  him home. Her dog’s name is “Lucky” --- a good name for him 53  Liz feels lucky to have him.
54 does Lucky help her? Well, he has been trained to understand many different 55 .For example, when Liz says, “Lucky, fetch my book!” and he 56 at once. He is very clever and understands many English words ,57  some difficult 58  like “upstaris”.
“Animals Helpers” is an organization 59  to help disabled people .60 is very important that it doesn’t run out of money. The donation is greatly appreciated and the money is well used to help disabled people like Liz.

--- Is my answer to the math problem right?

--- Let me consider it caredully 　　 I give you an answer.

　 A. before　 B. after　 C. since　 D. as soon as

— Your classroom is really bright and clean.　　

— It       after school every day.　　

A. is cleaned       B. cleaned      C.  was cleaned 　

Mosquitoes(蚊子)can be seen everywhere all over the world, especially in summer. And there are more than 2,500 kinds of them.

__43_likes the mosquito, but the mosquito may like you. She thinks your blood is delicious.

She? Yes, she. It’s true that the male(雄性)mosquito doesn’t bite(咬)and only the female mosquito bites because she 　44 blood(血液)to lay eggs. She is always 　45 things or people she wants to bite. If she likes what she finds, she will bite. But if she doesn’t like your blood, she 　46 to someone else for more delicious blood. Next time a mosquito bites you, just remember you’re different from others.

If the mosquito likes you, she will land on your body 　47 letting you know. She bites you 48 quickly and quietly that you may feel nothing. After she bites, you will have an itch(痒)on your body because she puts something from her mouth together with your blood. By the time the itch begins, she has 　49　 .

And then what happens? Well, after her delicious 　50　 ,it’s dark. The mosquito feels　 51 .

She just wants to find a place to have a good rest. There, on a leaf or a wall, she begins to lay eggs, 　52　 eggs.

( ) 43.A.Everyone　　　　　　　 B. No one　　　　　　 C. Someone

( ) 44.A.needs　　　　　　　　 B. need　　　　　　　 C. want

( ) 45.A.finding　　　　　　　　 B. wants　　　　　　　 C. looking for

( ) 46.A.will turn　　　　　　　 B. turns to　　　　　　 C. turn

( ) 47.A.with　　　　　　　　　 B. without　　　 　　　C. after

( ) 48.A.so　　　　　　　　　　 B. such　　　　　　　 C. very

( ) 49.A.flies away　　　　　　　 B. flew away　　　　　 C. flown away

( ) 50.A.breakfast　　　　　　　 B. dinner　　　　　　　 C. lunch

( ) 51.A.tiring　　　　　　　　 B. tired　　　　　　　　 C. relaxing

( ) 52.A.3 hundreds　　　　　　 B. hundred of　　　　　 C. hundreds of