I. Một bếp dùng khí đốt tự nhiên có hiệu suất 30%. Hỏi phải dùng bao nhiêu khí đốt để đun sôi 3 lít nước ở 30độC? Biết rằng suất tỏa nhiệt của khí đốt tự nhiên là 44.106J/kg

II. Năng suất tỏa nhiệt của nhiên liệu cho biết :

A. phần nhiệt học chuyển thành công cơ học khi 1kg nhiên liệu bị đốt cháy hoàn toàn

B. phần nhiệt lượng không được chuyển thành công cơ học khi 1kg nhiên liệu bị đốt cháy hoàn toàn

C. nhiệt lượng tỏa ra khi 1kg nhiên liệu bị đốt cháy hoàn toàn

D. tỉ số giữa phần nhiệt lượng chuyển thành công cơ học và phân nhiệt lượng tỏa ra môi trường xung quanh khi 1kg nhiên liệu bị đốt cháy hoàn toàn.

III. Nếu năng suất tỏa nhiệt của củi khô là 10.106J/kg thì 1 tạ củi khô khi cháy hết tỏa ra một nhiệt lượng là :

A. 106kJ

B.10.108kJ

C.10.109kJ

D.10.106kJ

I

1.".....stay with Vietnamese friends in the college dormitory?

"Sorry ,but I disagree with you ,Ben.There's no chance to practice speaking English then"

a.i think b.how can we c.what about d.why don't we

2.Lan walks past boutique everyday.....her way to school

a.through b.at c.on d.from

3.Auld Lang style is a song..............is sung on New Year's Eve

a.it b.whose c.when d.that

4.Areas in the countryside can..........some rain during the day

a.reach b.wish c.expect d.turn

5.The internet is now.............not only in cities ,but also in the countryside

a.careful b.available c.helpless d.interested

6.May I help you?...........

a.I am fraid I am busy now c.yes,that's very kind of you

b.What can I do for you d.what do you need?

7.Wearing uniform encourages student feel...........in many ways

a.official b.fashionable c.equal d.worried

8.The restaurant has the...........for serving seafood

a.impression b.business c.inspiration d.reputation

9.Islamic people usually go to the...............to pray

a.pagoda b.church c.mosque d.temple

10.The singaporean............is Singapor dollars

a.currency b.capital c.language d.climate

II

1.The article was posted by Jimhello on Tuesdays , 10 December 2002,.......?

a.didn't it b.was it c.wasn't it d.wasn't he

2.Don't worry , Mom.I am............a good time here

a,being b.doing c.making d,having

3,...............first three months in the Brighton Language Center in the UK left him penniless

a.when the b.in the c.it was the d.the

4.do you enjoy...........?

a.cook b.cooking c.to cook d.cooked

5.How much time do you spend ............eveeyday?

a. to watch Tv b,on watch TV c.watching TV d.watch TV

6.If you continue to ask me silly question , I'll.....you home

a.get b.go c.take d.fetch

7...........are funnel-shaped storms which pass overland below a thunderstorm

a,earthquakes b.typhoons c.tsunamies d.tornadoes

8.Singapore is known not only for its safety..............for its clean environment

a.but also b.also c.and d.so

9.If we don't do anything about this situation,we...........never succeed

a.would b.will c.should d.ought

10.Mr.Nakara added the figures slowly.......accurately

a.as b.but c.or d.nor

III

1.Ther is too much traffic,.................the air is polluted

a,however b.so c.moreover d.although

2.She is a doctor...........I met yesterday

a,whom b.that c.who d.whose

3.If a disater........in an area,people from other areas will offer help

a.happens b.will happen c.happen d.happened

4.I wish I........a computer like hers

a,has b.have c.had d.having

5,Be............!He is looking at you

a.care b.careful c.carefully d.carelessly

6.Everyone has to follow this way to get into the fair,.........?

a.do they b.don't they c.doesn't she d.doesn't he

7.We stayed at home...........it rained heavy

a.and b.so c.because d.but

8.He suggested.............the children to the zoo

a.take b.should take c.to take d.taking

9.Nga forgot to............the faucet when she left for work

a,turn off b.turn on c.turn up d.turn down

10.Tam..................go fishing wish his brother when he was young

a.was used to b.is used to c.has used to d.used to

IV

1.oh,he's running so...........that I can'y catch up with him

a.quick b.fast c.speedy d.rapid

2.Unless you..........I will explain it again to you

a.understand b.don't understand c.won't understand d.didn'y understand

3.He didn't know how to solve the problem ............he asked her for help

a.since b.because c.so d.for

4.She suggested.............money for the poor people in the region

a,to save b.saving c.to saving d.save

5.It was important that he......to help us

a.agreed b.agrees c.agreeing d.agree

6.After coming home,she cleaned the floor .....cooked dinner

a.so b.and c.to d.as well

7.We are going to.......our 20th wedding.Please stay and come

a,occur b.celebrate c.do d.parade

8.Auld Lang Syne is a song.........is sung on New Year Eve

a.when b.where c.which d.it

9.Miss Lien,............is my neighbor ,often shouts at night

a,that b.who c.whose d.whom

10.If I were a bird,I........be dove.What about you?

a.will b.would c.shall d.may

V

1.He had to go out............the heavy rain

a,though b.because of c.in spite d.despite

2.Da LAt,.......we visited last years, is a beautiful city

a.where b.that c.which d.at which

3.We can predict when a volcano..........

a.sucks up b.strikes c.erupts d.struck

4.The car.......he has just bought is very expensive

a.who b.whom c.which d.whose

5.The men and animals ...............you să on TV last night were from China

a.who b.whom c.which d.that

6.The people..........live in Greece speak Greek

a.which b.whom c.where d.who

7........he likes chocolates,he tries not to eat them

a.since b.though c.despite d.as

8...........the water is highly polluted,we can't swim in the river

a.although b.as c.however d.despite

9.a tropical storm which reaches 120 meters per hour is called a..........in North and South America

a.typhoon b.cyclone c.hurricane d.tornado

10.The children .............parents work late are taken home by bus

a.who b.whom c.their d.whose

11.Ho Xuan Huong,......wrote"BAnh Troi Nuoc",was a famous poet

a.who b.whom c.whose d.which

12.In Asia, a tropical storm is know as a.......

a.hurricane b.tornado c.cyclone d.typhoon

13.There are many ..............throughout the year

a.calebrating b.celebrate c.celebrations d.celebration

14..............he was in a hungry ,he stopped to help the old man who fell down

a.however b.because c.although d.since

15.I hope my friends won't laugh..............me

a.with b.at c.in d.for

I

1.People in Israel are going to celebrate their festival..........is called Passover

a.whose b.who c.which d.where

2......................I was really tired ,I couldn't sleep

a.Even though b.so c.therefor d.because of

3.Mai:"I have just got a job in an international bank in Hanoi"-Liz............?

a.You're welcome b.Congratulations c.That's a good idea d.never mind

4.Your sister works in a foregign company ,..............she?

a.isn't b.didn't c.wasn't d.doesn't

5..............Monday morning ,there is a school meeting between 7.00 am and 8.00 am

a.in b.for c.on d.at

II

1.The boy felt very proud...............his success at school

a.on b.at c.about d.of

2.Where.............you go if you have a car?

a.did b.would c.will d.do

3............talking me downtown on your way to work this morning?

a.would you mind b.can you c.why don't you d.could you please

4.She bought me............

a.a laether brown bag b.a brown leather bag

c.a bag brown leather d.a bag leather brown

5.I don't want to eat...........because I am not hungry

a.everything b.anything c.nothing d.something

6.They didn't go on a picnic........the weather was awful

a.so b.although c.because d.because of

7.This newpaper is...........everyday .It's a daily newspaper

a.publishing b.published c.publidshes d.to publish

8.Nowadays the.........can know when a volcano will erupt

a.scientifically b.scientific c.scientist d.science

9.Peter :Would you like some more tea? Jack:...................

a.yes,please b.here you are c.you are welcome d.no,I don't mind

10.Please turn.............the TV.I'd like to watch the news at 7.00

a.in b.on c.at d.off

11.My family.......go to Sam Son Beach in summer when we lived in Thanh Hoa

a.use b.were used to c.used d.used to

12.She works for a natinal bank in HA NOI ,..........?

a.does she b.doesn'tt she c.did she d.didn't she

Phân biệt các chất sau

a.SO_{3 ,} SO_2,CO₂

_b.Al₂O_3,P₂O_5,MgO,Na₂O dạng bột

I

1.We ...............to the countryside two months ago

a.go b.have gone c.went d.will

2.What will you do if you............the final examinations?

a.will pass b.would pass c.pass d.passed

3.I wish my summer holiday ..............longer

a.will be b.is c.were d.has been

4.I asked him.................he came from

a.where b.who c.what d.which

5.It rained hard .......... , my father went to work

a.thererefore b.however c.because d.so

6.your sister writes poems and stories,.............she?

a,does b.doesn't c.will d.won't

7.Laura fell asleep during the lesson .............she was tired

a.so b.but c.because d.therefore

8.How much.................do you want?

a,bananas b.eggs c.candies d.sugar

9.Do you know the man..........you met at the party yesterday?

a.what b/\.which c.whom d.whose

10.Tomorrow the director will have a meeting .......................8:00 am to 10:00 am

a.between b.from c.among d.in

11.The doctor advised me...........jogging every mornig

a,went b.go c.to go d.doing

12,the bike ............I have just bought is every cheap

a.which b.where c.what d.who

13.we will start our trip............o'clock..........the morning

a.in/in b.at/in c.in/at d.at/at

14.He said he..............come back later

a.will be b.will c.would be d.would

15,We..........anything from James since we left school

a.haven't heard b.heard c.don't hear d.didn't hear

16.If I ...........a bird ,I would be a dove

a.would be b.were c.am d.will be

17.The children sang.............during the trip

a.happily b.happiness c.unhappy d.happy

18.This newspaper .........everyday

a.happily b.happines c.published d.is published

19.You have lived lived in this city since 1998,.........?

a,haven't you b.didn't c.did you d.have you

20.My student enjoy ......................English very much

a.learn b.learnt c.learning d.to learn

I

1.In recent years,more and more people .............for things with credit cards

A.pay B.paid C.are playing D.have been paying

2.What people ..............Benetton stores is that the quality is always high

A.like b.like very much c.like about d.like a lot

3.Paolo would like to.......by the time he is 40

a.travel b.be traveling c.be going to travel d.have traveled

4.Poverty is a problem in many cities ..............whole families can only afforld to live in one room

a.when b.where c.even d.if

5The world would be a better place if everyone showed ........cooperation as John

a.as much b.so much c.too much d.much

6.he turned on the TV,....i thought was rather surprising

a.and b.so c.that d.which

7.My car would not start ,....................Jenny's stared immediately

a.whereas b.though c.however d.nevertheless

8.They stayed for hour,which I was very ..........

a.annoyed b.annoyed about c.annoying d.annoying me

9.That was a very strange question ......

a.you ask b.you are asking c.for asking d.to ask

10.............a movie to be enteraingting ,it has to have an interesting story

a.so that b.in order that c.in order for d.in order to

Giúp mình bài này với.Chiều nay học rồi.

Cho một lượng dư muối Na₂CO₃ vào 200ml dd H₂SO₄ thấy thoát ra một chất khí,cho toàn bộ khí đó hấp thụ hoàn toàn vào 98g dd KOH 40%.Sau phản ứng làm bay hơi dd thì thu được 57,6 g hỗn hợp hai muối khan

a.Tính khối lượng mỗi muối thu được

b.Xác định nồng độ mol của dd H₂SO₄

I

1.garbarge standard solar lunar

2.covered installed described decorated

3.chopstick charity children christmas

II Tìm trọng âm

1.depend enjoy listen divide

2.vacation century friendliness million

III

1.name native nation natural

2.invite river shrine primary

3.walked filled died played

4.changes loves washes oranges

IV

1.what which whose where

2.thank this there those

3.cry my sky city

4.now know how cow

5.disappointed provied polluted enjoyed

V

1.passed watched played washed

2.proud about around would

3.with brother though thousand

4.entrance paddy bamboo banyan

5.problem love box hobby

VI

1.seat teacher wear meal

2.needed worked stopped washed

3.play date pay many

4.think thick this thanks

VII

1.consumer reduce use plumber

2.church catch mechanic kitchen

3.requested regulated asked needed

4.excellent exemple exactly exhibit

5.teach great street easter

VIII

1.home hour horn high

2.bough thought through ought

3.natural nature native nation

4.forced laughed wrapped weighed

5.flood typhoon groon balloon

IX

1.compose sticky describe compliment

2.active predict priority ultimately

3.charity last passover congratulate

4.celebration considerate decorate ester

X

1.high sight this find

2.stopped agreed listened cleaned

3.meat seat great mean

4.call land fall ball

5.rather them neither think

XI

1.hurry hundred husband humour

2.charity character child chinese

3.decorate describe declare decision

XII

1.nice drive live advice

2.planted worked wanted needed

3.take car late make

4.beach clean instead leave

hello hour him house

Tìm và sửa lỗi sai

I

1.The doctor told my father stop smoking because of his sickness

2.I haven't seen her when we left school

3.She walked ten kilometer a day to get water for her family

4.That is the girl whom Jim wants to marry her

II

1.My uncle doesn't care how much does the car cost;he is buying it anyway

2.Stop making so much noise or the neighbor will get angrily

III

1.The Path Finder , a magazine for teengers , is of one my favorite magazines

2.I sent him a letter of apology,but he still seened angrily

3.Nga wishes she can go camping with her classmates this weekend

4.Mary learned very hard for the lesson ,because she passed the exam quite easily

5.The Internet can also be very dangerous because virues and bad programs

IV

1.If I heard any news,I'll phone you

2.Mrs.Lien,whom sings very well,is my teacher of English

3.This is the city which I was born

4.They are the people who cars were stolen

5.She asked me if I live in Hanoi

V

1.She would come to see you if she has your address

2.You must starting your job as soon as possible

3.Don't forget to turn on all the lights when you go to bed

VI

1.The questions which the teacher wrote on the board was not easy

2.I think your grey hair makes you look rather distinguishing

VII Sắp sếp

1.It/be/beautiful day Lan / ne/outside/play/her dog/Skippy

2.Lan's mother /gather/family/and tell them/find shelter/house

3.All of a sudden /sky/become/dark.Storm/come/strong wind/heavy rain.Lan/be scare/but soon/storm finish.Everyone/be glad