Sunday, January 23, 2011

PHRASAL VERBS

Most phrasal verbs consist of two words, but a few consist of three words, which always stay together.
 
VerbMeaningExample
ask someone outinvite on a dateBrian asked Judy out to dinner and a movie.
ask aroundask many people the same questionI asked around but nobody has seen my wallet.
add up to somethingequalYour purchases add up to $205.32.
back something upreverseYou'll have to back up your car so that I can get out.
back someone upsupportMy wife backed me up over my decision to quit my job.
blow upexplodeThe racing car blew up after it crashed into the fence.
blow something upadd airWe have to blow 50 balloons up for the party.
break downstop functioning (vehicle, machine)Our car broke down at the side of the highway in the snowstorm.
break downget upsetThe woman broke down when the police told her that her son had died.
break something downdivide into smaller partsOur teacher broke the final project down into three separate parts.
break inforce entry to a buildingSomebody broke in last night and stole our stereo.
break into somethingenter forciblyThe firemen had to break into the room to rescue the children.
break something inwear something a few times so that it doesn't look/feel newI need to break these shoes in before we run next week.
break ininterruptThe TV station broke in to report the news of the president's death.
break upend a relationshipMy boyfriend and I broke up before I moved to America.
break upstart laughing (informal)The kids just broke up as soon as the clown started talking.
break outescapeThe prisoners broke out of jail when the guards weren't looking.
break out in somethingdevelop a skin conditionI broke out in a rash after our camping trip.
bring someone downmake unhappyThis sad music is bringing me down.
bring someone upraise a childMy grandparents brought me up after my parents died.
bring something upstart talking about a subjectMy mother walks out of the room when my father brings up sports.
bring something upvomitHe drank so much that he brought his dinner up in the toilet.
call aroundphone many different places/peopleWe called around but we weren't able to find the car part we needed.
call someone backreturn a phone callI called the company back but the offices were closed for the weekend.
call something offcancelJason called the wedding off because he wasn't in love with his fiancé.
call on someoneask for an answer or opinionThe professor called on me for question 1.
call on someonevisit someoneWe called on you last night but you weren't home.
call someone upphoneGive me your phone number and I will call you up when we are in town.
calm downrelax after being angryYou are still mad. You need to calm down before you drive the car.
not care for someone/somethingnot like (formal)I don't care for his behaviour.
catch upget to the same point as someone elseYou'll have to run faster than that if you want to catch up with Marty.
check inarrive and register at a hotel or airportWe will get the hotel keys when we check in.
check outleave a hotelYou have to check out of the hotel before 11:00 AM.
check someone/something outlook at carefully, investigateThe company checks out all new employees.
check out someone/somethinglook at (informal)Check out the crazy hair on that guy!
cheer upbecome happierShe cheered up when she heard the good news.
cheer someone upmake happierI brought you some flowers to cheer you up.
chip inhelpIf everyone chips in we can get the kitchen painted by noon.
clean something uptidy, cleanPlease clean up your bedroom before you go outside.
come across somethingfind unexpectedlyI came across these old photos when I was tidying the closet.
come apartseparateThe top and bottom come apart if you pull hard enough.
come down with somethingbecome sickMy nephew came down with chicken pox this weekend.
come forwardvolunteer for a task or to give evidenceThe woman came forward with her husband's finger prints.
come from somewhereoriginate inThe art of origami comes from Asia.
count on someone/somethingrely onI am counting on you to make dinner while I am out.
cross something outdraw a line throughPlease cross out your old address and write your new one.
cut back on somethingconsume lessMy doctor wants me to cut back on sweets and fatty foods.
cut something downmake something fall to the groundWe had to cut the old tree in our yard down after the storm.
cut ininterruptYour father cut in while I was dancing with your uncle.
cut inpull in too closely in front of another vehicleThe bus driver got angry when that car cut in.
cut instart operating (of an engine or electrical device)The air conditioner cuts in when the temperature gets to 22°C.
cut something offremove with something sharpThe doctors cut off his leg because it was severely injured.
cut something offstop providingThe phone company cut off our phone because we didn't pay the bill.
cut someone offtake out of a willMy grandparents cut my father off when he remarried.
cut something outremove part of something (usually with scissors and paper)I cut this ad out of the newspaper.
do someone/something overbeat up, ransack (Br.E., informal)He's lucky to be alive. His shop was done over by a street gang.
do something overdo again (N.Amer.)My teacher wants me to do my essay over because she doesn't like my topic.
do away with somethingdiscardIt's time to do away with all of these old tax records.
do something upfasten, closeDo your coat up before you go outside. It's snowing!
dress upwear nice clothingIt's a fancy restaurant so we have to dress up.
drop backmove back in a position/groupAndrea dropped back to third place when she fell off her bike.
drop in/by/overcome without an appointmentI might drop in/by/over for tea some time this week.
drop someone/something offtake someone/something somewhere and leave them/it thereI have to drop my sister off at work before I come over.
drop outquit a class, school etcI dropped out of Science because it was too difficult.
eat outeat at a restaurantI don't feel like cooking tonight. Let's eat out.
end upeventually reach/do/decideWe ended up renting a movie instead of going to the theatre.
fall apartbreak into piecesMy new dress fell apart in the washing machine.
fall downfall to the groundThe picture that you hung up last night fell down this morning.
fall outseparate from an interiorThe money must have fallen out of my pocket.
fall out(of hair, teeth) become loose and unattachedHis hair started to fall out when he was only 35.
figure something outunderstand, find the answerI need to figure out how to fit the piano and the bookshelf in this room.
fill something into write information in blanks (Br.E.)Please fill in the form with your name, address, and phone number.
fill something outto write information in blanks (N.Amer.)The form must be filled out in capital letters.
fill something upfill to the topI always fill the water jug up when it is empty.
find outdiscoverWe don't know where he lives. How can we find out?
find something outdiscoverWe tried to keep the time of the party a secret, but Samantha found it out.
get something across/overcommunicate, make understandableI tried to get my point across/over to the judge but she wouldn't listen.
get along/onlike each otherI was surprised how well my new girlfriend and my sister got along/on.
get aroundhave mobilityMy grandfather can get around fine in his new wheelchair.
get awaygo on a vacationWe worked so hard this year that we had to get away for a week.
get away with somethingdo without being noticed or punishedJason always gets away with cheating in his maths tests.
get backreturnWe got back from our vacation last week.
get something backreceive something you had beforeLiz finally got her Science notes back from my room-mate.
get back at someoneretaliate, take revengeMy sister got back at me for stealing her shoes. She stole my favourite hat.
get back into somethingbecome interested in something againI finally got back into my novel and finished it.
get on somethingstep onto a vehicleWe're going to freeze out here if you don't let us get on the bus.
get over somethingrecover from an illness, loss, difficultyI just got over the flu and now my sister has it.
get over somethingovercome a problemThe company will have to close if it can't get over the new regulations.
get round to somethingfinally find time to do (N.Amer.: get around to something)I don't know when I am going to get round to writing the thank you cards.
get togethermeet (usually for social reasons)Let's get together for a BBQ this weekend.
get upget out of bedI got up early today to study for my exam.
get upstandYou should get up and give the elderly man your seat.
give someone awayreveal hidden information about someoneHis wife gave him away to the police.
give someone awaytake the bride to the altarMy father gave me away at my wedding.
give something awayruin a secretMy little sister gave the surprise party away by accident.
give something awaygive something to someone for freeThe library was giving away old books on Friday.
give something backreturn a borrowed itemI have to give these skates back to Franz before his hockey game.
give inreluctantly stop fighting or arguingMy boyfriend didn't want to go to the ballet, but he finally gave in.
give something outgive to many people (usually at no cost)They were giving out free perfume samples at the department store.
give something upquit a habitI am giving up smoking as of January 1st.
give upstop tryingMy maths homework was too difficult so I gave up.
go after someonefollow someoneMy brother tried to go after the thief in his car.
go after somethingtry to achieve somethingI went after my dream and now I am a published writer.
go against someonecompete, opposeWe are going against the best soccer team in the city tonight.
go aheadstart, proceedPlease go ahead and eat before the food gets cold.
go backreturn to a placeI have to go back home and get my lunch.
go outleave home to go on a social eventWe're going out for dinner tonight.
go out with someonedateJesse has been going out with Luke since they met last winter.
go over somethingreviewPlease go over your answers before you submit your test.
go overvisit someone nearbyI haven't seen Tina for a long time. I think I'll go over for an hour or two.
go without somethingsuffer lack or deprivationWhen I was young, we went without winter boots.
grow apartstop being friends over timeMy best friend and I grew apart after she changed schools.
grow backregrowMy roses grew back this summer.
grow upbecome an adultWhen Jack grows up he wants to be a fireman.
grow out of somethingget too big forElizabeth needs a new pair of shoes because she has grown out of her old ones.
grow into somethinggrow big enough to fitThis bike is too big for him now, but he should grow into it by next year.
hand something downgive something used to someone elseI handed my old comic books down to my little cousin.
hand something insubmitI have to hand in my essay by Friday.
hand something outto distribute to a group of peopleWe will hand out the invitations at the door.
hand something overgive (usually unwillingly)The police asked the man to hand over his wallet and his weapons.
hang instay positive (N.Amer., informal)Hang in there. I'm sure you'll find a job very soon.
hang onwait a short time (informal)Hang on while I grab my coat and shoes!
hang outspend time relaxing (informal)Instead of going to the party we are just going to hang out at my place.
hang upend a phone callHe didn't say goodbye before he hung up.
hold someone/something backprevent from doing/goingI had to hold my dog back because there was a cat in the park.
hold something backhide an emotionJamie held back his tears at his grandfather's funeral.
hold onwait a short timePlease hold on while I transfer you to the Sales Department.
hold onto someone/somethinghold firmly using your hands or armsHold onto your hat because it's very windy outside.
hold someone/somethinguprobA man in a black mask held the bank up this morning.
keep on doing somethingcontinue doingKeep on stirring until the liquid comes to a boil.
keep something from someonenot tellWe kept our relationship from our parents for two years.
keep someone/something outstop from enteringTry to keep the wet dog out of the living room.
keep something upcontinue at the same rateIf you keep those results up you will get into a great college.
let someone downfail to support or help, disappointI need you to be on time. Don't let me down this time.
let someone inallow to enterCan you let the cat in before you go to school?
look after someone/somethingtake care ofI have to look after my sick grandmother.
look down on someonethink less of, consider inferiorEver since we stole that chocolate bar your dad has looked down on me.
look for someone/somethingtry to findI'm looking for a red dress for the wedding.
look forward to somethingbe excited about the futureI'm looking forward to the Christmas break.
look into somethinginvestigateWe are going to look into the price of snowboards today.
look outbe careful, vigilant, and take noticeLook out! That car's going to hit you!
look out for someone/somethingbe especially vigilant forDon't forget to look out for snakes on the hiking trail.
look something overcheck, examineCan you look over my essay for spelling mistakes?
look something upsearch and find information in a reference book or databaseWe can look her phone number up on the Internet.
look up to someonehave a lot of respect forMy little sister has always looked up to me.
make something upinvent, lie about somethingJosie made up a story about about why we were late.
make upforgive each otherWe were angry last night, but we made up at breakfast.
make someone upapply cosmetics toMy sisters made me up for my graduation party.
mix something upconfuse two or more thingsI mixed up the twins' names again!
pass awaydieHis uncle passed away last night after a long illness.
pass outfaintIt was so hot in the church that an elderly lady passed out.
pass something outgive the same thing to many peopleThe professor passed the textbooks out before class.
pass something updecline (usually something good)I passed up the job because I am afraid of change.
pay someone backreturn owed moneyThanks for buying my ticket. I'll pay you back on Friday.
pay for somethingbe punished for doing something badThat bully will pay for being mean to my little brother.
pick something outchooseI picked out three sweaters for you to try on.
point someone/something outindicate with your fingerI'll point my boyfriend out when he runs by.
put something downput what you are holding on a surface or floorYou can put the groceries down on the kitchen counter.
put someone downinsult, make someone feel stupidThe students put the substitute teacher down because his pants were too short.
put something offpostponeWe are putting off our trip until January because of the hurricane.
put something outextinguishThe neighbours put the fire out before the firemen arrived.
put something togetherassembleI have to put the crib together before the baby arrives.
put up with someone/somethingtolerateI don't think I can put up with three small children in the car.
put something onput clothing/accessories on your bodyDon't forget to put on your new earrings for the party.
run into someone/somethingmeet unexpectedlyI ran into an old school-friend at the mall.
run over someone/somethingdrive a vehicle over a person or thingI accidentally ran over your bicycle in the driveway.
run over/through somethingrehearse, reviewLet's run over/through these lines one more time before the show.
run awayleave unexpectedly, escapeThe child ran away from home and has been missing for three days.
run outhave none leftWe ran out of shampoo so I had to wash my hair with soap.
send something backreturn (usually by mail)My letter got sent back to me because I used the wrong stamp.
set something uparrange, organizeOur boss set a meeting up with the president of the company.
set someone uptrick, trapThe police set up the car thief by using a hidden camera.
shop aroundcompare pricesI want to shop around a little before I decide on these boots.
show offact extra special for people watching (usually boastfully)He always shows off on his skateboard
sleep overstay somewhere for the night (informal)You should sleep over tonight if the weather is too bad to drive home.
sort something outorganize, resolve a problemWe need to sort the bills out before the first of the month.
stick to somethingcontinue doing something, limit yourself to one particular thingYou will lose weight if you stick to the diet.
switch something offstop the energy flow, turn offThe light's too bright. Could you switch it off.
switch something onstart the energy flow, turn onWe heard the news as soon as we switched on the car radio.
take after someoneresemble a family memberI take after my mother. We are both impatient.
take something apartpurposely break into piecesHe took the car brakes apart and found the problem.
take something backreturn an itemI have to take our new TV back because it doesn't work.
take offstart to flyMy plane takes off in five minutes.
take something offremove something (usually clothing)Take off your socks and shoes and come in the lake!
take something outremove from a place or thingCan you take the garbage out to the street for me?
take someone outpay for someone to go somewhere with youMy grandparents took us out for dinner and a movie.
tear something uprip into piecesI tore up my ex-boyfriend's letters and gave them back to him.
think backremember (often + to, sometimes + on)When I think back on my youth, I wish I had studied harder.
think something overconsiderI'll have to think this job offer over before I make my final decision.
throw something awaydispose ofWe threw our old furniture away when we won the lottery.
turn something downdecrease the volume or strength (heat, light etc)Please turn the TV down while the guests are here.
turn something downrefuseI turned the job down because I don't want to move.
turn something offstop the energy flow, switch offYour mother wants you to turn the TV off and come for dinner.
turn something onstart the energy, switch onIt's too dark in here. Let's turn some lights on.
turn something upincrease the volume or strength (heat, light etc)Can you turn the music up? This is my favourite song.
turn upappear suddenlyOur cat turned up after we put posters up all over the neighbourhood.
try something onsample clothingI'm going to try these jeans on, but I don't think they will fit.
try something outtestI am going to try this new brand of detergent out.
use something upfinish the supplyThe kids used all of the toothpaste up so we need to buy some more.
wake upstop sleepingWe have to wake up early for work on Monday.
warm someone/something upincrease the temperatureYou can warm your feet up in front of the fireplace.
warm upprepare body for exerciseI always warm up by doing sit-ups before I go for a run.
wear offfade awayMost of my make-up wore off before I got to the party.
work outexerciseI work out at the gym three times a week.
work outbe successfulOur plan worked out fine.
work something outmake a calculationWe have to work out the total cost before we buy the house.

Friday, January 21, 2011

CBSE CLASS 10 MATHEMATICS QUESTION PAPER

Sample Paper – 2010
Class – X
Subject – Mathematics

Time: 3 hrs    
M.M. 80
                        
 General instructions:
1.   All the questions are compulsory
2.   The question paper consists of 30 questions divided into four sections A, B, C and D. Section A contain 10 questions of 1 mark each; section B contains 5 questions of 2 marks each, Section C contains 10 questions of 3 marks each, section D contains 5 questions of 6 marks each.  
3.   There is no overall choice. However, an internal choice has been provided in one question of 2 marks, three questions of 3 marks each and two questions of 6 marks each.
                                                       SECTION A
Q1. State fundamental theorem of arithmetic?
Q2. If an = 2 – 2n, find the value of 19 th term of an AP.
Q3. Find the HCF of 40 and 130.
Q4. 1 is zero of x3 – k, find the value of k.
Q5. Find the value of 2sin300/ (tan2450+cosce2450).
Q6. Find the value of k, if the equation kx2+4x+4=0 have real and equal roots.
Q7. Find the value of x, if the mean of 10, 15, 5, x, 8 is 20.
Q8. Find the 30th term of 10, 7, 4…
Q9.  What is the probability of sure event?
Q10. Write the condition to be satisfied by q so that a rational number p/q has a terminating decimal expansion.
                                 SECTION B
Q11. Prove that for number n ε N, 12n end with the digit zero.


Q12. Two concentric circles are of radii 5 cm and 3 cm. find the length of the chord of the larger circle which touches the smaller circle.
Q13. Draw a circle of radius 6 cm from a point 10 cm away from its centre , construct the pair of tangents to the the circle and measure their lengths.
Q14. Find the value of k for which the following points are collinear,  ( 7 , -2 ) , ( 5 , 1 ) , ( 3 , k )
                                          
Q15.  If tanA = 4/3 then find the value of sinA + cosA/ cosec A
OR
     Evaluate    2 cos670/ sin 230 - tan 400 / cot 500 – sin 900
                                                       SECTION C
Q16.  2 woman and 5 men can together finish a piece of embroidery in 4 days, while 3 woman and 6 men can finish it in 3 days. Find the time taken by 1 woman alone to finish the embroidery, and that taken by 1 man alone.

Q17. Draw the graphs of the equations 2x-y+6=0 and 4x+5y-16=0. Also determine the coordinate of the vertices of the triangle formed by these lines and x axis.
OR
 Find the value of k of for which the following system of equations has infinitely many solutions   12x +k y = k   ,   k x+ 3 y = k-3

Q18. Solve the equation by using quadratic formula.
                abx2 + (b2 -ac) x – b c = 0
                               OR
The sum of the squares of two consecutive natural numbers is 421. Find the numbers.

Q19. The nth term of an AP is given by an=9-5n, find the sum of first 15 terms of an AP.
Q20. Draw a pair of tangents to circle of radius 5 cm which are inclined to each other at an angle of 600.
OR
Prove that: Tan A/ (1 –tan A) +cot A / (1 – tan A)= 1 + sec A .cosec A

Q21. Find the roots of the equation 9x2-15x+6=0 by method of    completing the square.
Q22. Prove that ( 4 , 3 ) , ( 6 , 4 ) , ( 5 , 6 ) and  ( 3 , 5 ) are the vertices of a rhombus.
                                                               
Q23. State and prove Basic Proportionality theorem.
   By using theorem in the given figure prove that 1/x   + 1/y = 1/z

                                  A                    B
                                               C
                                       X      z        y
                                     D                   F  
                                               F

Q24  Water in a canal 6 m wide and 1.5 m deep is flowing with a speed of 10 km/h. how much area will it irrigate in 30 minutes, if 8 cm of standing water is needed.
 Q25. Find the sum of all natural numbers between 100 and 500 which are divisible by 8.

                                                       SECTION D

Q26. Find the mean, median and mode of the following frequency distribution table
 Classes:  5 – 10   10 – 15    15 – 20   20 – 25    25 - 30  30 – 35
 Frequency: 10       2           4         5          7          9

Q27.The angle of elevation of the bottom and top of a flag staff at the top of a building as seen from a point at a horizontal distance of 10 m from the foot of the building are 300 and 450 respectively. Find the height of the flag staff.
Q28.Prove that (TanA + sec A – 1)/(tanA – secA + 1)=(1 + sin A)/ cos A
OR
  Solve: 4/(x + y) = 6 / (x – y) +3, 1 / 2 (x +y) = 1/ 3(x-y) +3/2

Q29.In a∆ ABC, AD is a median and AE is perpendicular to BC.If BC= a, CA= b, AB=c, AD = p, AE = h and DE = x, prove that b2+c2 = 2p2 + ½ a2.
Q30.  Solve for x, (2x + 2) / (x – 1) + (x – 2) / (x + 1) = 5 /2
                                  OR   
                                                                                  In a circle of radius 21 cm, an arc subtends an angle of 600 at the centre. Find
(a)                     The length of an arc
(b)                     Area of the sector formed by the arc
(c)                     The area of the segment formed by the corresponding chord.