Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Many people nowadays have to ....wear...... false teeth when they was middle-aged.
Since the beginning of this century (1)tooth... decay has greatly increased. the amount (2)of... sugar in our food has also increased. Doctors and dentists now know that (3)candy... is the chief cause of tooth (4).decay.. Eskimos' teeth, for example, started to (5)decay.. when they began to eat sweet (6).food..
Long ago doctors did not like (7).to.. treat people's teeth. Barbers and blacksmiths (8)looked... after people's teeth and pulled them (9).out.. when they decayed. Some people thought (10).toothache.. was a punishment from the gods
VI.Read the passage carefully, tlien decide whot hen the following,statement are true T) or false (F)
There are nine planets in our solar system. These planets each have their atmosphere and environmental conditions. Scientists have been trying to research other planets to see if it is possible for life to exist on the other eight own bodies in space.
Mercury and Pluto are probably the most difficult to research because of their position in the solar system. Mercury is so close to the sun that with our current technology a space shuttle would burn up before it even reached its atmosphere. Pluto is so far away that some scientists believe that it may not even be a planot but a large asteroid or comet. A space shuttle can not trave that far away because it is so far away from the sun that it would freeze.
Many scientists also believe that our solar system is not alone in the uni- with us. It is difficult to know if there is life present elaewhere in the universe. for many years to come. yerse. Many believe there are several other systems that share the uhiverse .The universe is a complex structure of space that may continue to be a mysterey for many years to come
32. There are nine planets in our solar system, besides Earth. T
33. It is difficult to study the planet Mercury because it is very close to the sun.T
34. We don't know much about Pluto even though we can see it up close F
35. Pluto may not be a planet, according to some scientists. T
36. Scientists have got enough information about the universe F
#Yumi
Fill in the blank
Tooth decay....STARTS.(start) early in life. It.CONTINUES....(continue) throughout adult life so that many of us will..HAVE LOST..(lose) quite a few of our teeth by the time we ...REACH......(reach) old age.
There..ARE.....(be) two causes of tooth decay.One cause is that many of us...DON'T TAKE ....(not take) proper care of our teeth. Besides that, we eat a lot of sugary food, thus....RESULTS....(result) in tooth decay. Ever since we...ARE...(be) young, we....ARE ENCOURAGED....(encourage) to brush our teeth properlu and regularly. However, most of us...DON'T PAY.....(not pay) attention to this advice and neglect our teeth.
cau 1 : give the correct form of verbs given :
1 i am sorry . i ( not finish ) ..........HAVEN'T FINISHED......... this work yet
2 poems as well as play (write) ........WRITTEN......... by william shakespeare
3 how many times HAVE you (be).........BEEN.......... to van mieu?
4 they like (chat) ........CHATTING........... they use the internet very often
5 i (have) ........HAD.........a phone call while i (surf) ......WAS SURFING...... the wed yesterday
cau 2 :
1 in recent years , more and more people ............... for things with credit cards
a pay b paid c are paying 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 paplo would like to ......................by the time he is 40
a travel b be traveling c be going to travel d have traveled
4 the world would be a better place if everyone showed ..............cooperation as john
a as much b so much c too much d much
5 he turned on the tv , ................... i thought was rather surprising
a and b so c that d which
6 my car would not start , ............................ jenny is started immediately
a whereas b though c however d nevertheless
7 they stayed for hours , which i was very ..................
a annoyed b annoyed about c annoying d annoying me
8 that was a very strange question .............................................
a you ask b you are asking c for asking d to ask
9 ..............................a movie to be entertaining , it has to have an interesting story
a so that b in order that c in order for d in order to
cau 2 : rewrite the following snetences :
1 would you please give me a hand ?
>> would you mind giving me a hand ?
2 i can not understand him because he speaks so quickly
>> if he did not speak so quickly, i can understand him
3 although he took a taxi , he arrived late for the concert .
>>in spite of taking a taxi , he arrived late for the concert .
4 the suitcase is so heavy that i can not carry it
>> it is such a heavy suitcase that i can not carry it
5 people say that he is an excellent footballer .
>> he is said to be an excellent footballer .
6 my mother used to make us clean the house ....
>> we used to be made clean the house
7 it is two years since i last spoke to her
>> i have not spoken to her for two years
8 going swimming in the river in the summer is interesting
>> it is interesting to go swimming in the river in the summer
cau 3 : give the corect form ò verbs given :
1 if he saves up , he soon ( be able )........will soon be able.........to afford a new car
2 what a mess! duc is toys ( not put ) ........haven't been put.......... away
3 if you feel like (stay ) .........staying.......with us , just send us a fax
4 my sister and i (stay ) ...........were staying........... at our grandparents when we (meet ) ......met......our great grand aunt for the first time
Wikipedia is an encyclopaedia that is available on the Internet and what people love about it is that it can be edited by absolutely everybody . When and how did it start ? It was founded in 2001 by a guy called Jimmy Wales . It started as a fancy idea , a kind of a hobby and everybody is surprised how popular it has become and how many computer scientists it has attracted . It has got a collection of about 1.8 mln articals , the majority of which are in English ; however , one can find some articles in over 200 languages . If it aws a business , it would earn lots of money .
How is it possible that articlest hat can be changed by anyone are correct ? The Wikipedia is based on wikis – a special software which lets everyone modify a wbpage and it is true that anyone can change the information on the page if they think it is incorrect . But , the Wikipedia has a team of over 13,000 people who are experts in different fields and who correct any accurate information sent by people . Is it error – free ? One may say so . Rcently , for example , the Bristish journal Nature looked at the scientific information in Wikipedia and confirmed it was very reliable and that they did not find many errors . It was very good news for the founder as well as for all the users .
Why is it becoming so popular ? Like the whole idea of the Internet , it is also quick and available to everyone . The greatest thing of all is that it is free . Some people also stress that it’s fun to be able to add what you know to the information on the net . IT specialists believe it has a bright future and most claim it is the most brilliant invention ever .
Questions :
1. Wikipedia ___________ :
A. was created by a team of computer scientists .
B. began as a business idea
C. became popular as soon as it started
D. started as one man ‘s passion .
2. Articles in Wikipedia are ________ :
A. mostly about science
B. mostly in english
C. translate into 200 languages
D. very interesting
3. Wikipedia remains accurate as much as possible because _________ :
A. all people who write for it are experts
B. it has a special type of software programme
C. there are people who monitor it for mistakes
D. not everybody can change the information
4. the text comes from __________________ :
A. a leaflet
B. a speech
C. a magazine
D. a scientific article
5. The best advantages of Wikipedia is that...........
A. you don't have to pay for it.
B. everyone can use it
C. it is created bu ordinary people
D. is quick and reliable.