is => was
Rumour có từ trước => quá khứ
is => was
Rumour có từ trước => quá khứ
1)The weather ........... fine so far this week
A. is B. has been C. was D. had been
2)He ................. in space for 10 days by tomorrow.
A. will travel B. will be traveling C. will have been traveling D. has traveled
3) when we got home, dinner............... so he had a drink first
A.was preparing B. was being prepared C. was prepared D. has been prepared
4) there are many ways................. to Rome.
A. is leading B. are leading C. leading D. led
Since the world has become ............ (industry),there has been an increase in the number of animal species that have either become extinct or have neared extinction. Bengal tiger, for instance, which once roamed the jungles in vast number, now only about 2,300 and by the year 2025, their population is ............ (estimate)to be down to zero. What is alarming about the case of the Bengal tiger is that this ............ (extinct) will have been caused almost entirely by poachers who according to some sources, are not interested in material gain but in ...........(p gratification. This is an example of the callousness that is part of what is causing the problem of extinction. Animals like Bengal tigers as well as other endangered species are a valuable part of the world's ecosystem. .................(nation) laws protecting these animals must be enacted to ensure their .......(survive) and the survival of our planet.
Countries around the world have begun to deal with the problem in ..........(vary) ways. Some countries, in order to circumvent the problem, have allocated large amounts of land to animal reserves. They then charge admission to help defray the costs of maintaining the parks and they often must also depend on world organizations for support. With the money they get, they can invest in equipment, and patrols to protect the animals. Another solution that is an attempt to stem the tide of animal extinction is an international boycott of products made from endangered species. This seems fairly effective but it will not, by itself, prevent animals from being hunted and killed.
One of the most urgent environmental problems in the world today is the shortage of clean water. Having clean drinking water is basic human right. But acid rain, industrial pollution and garbage have made many sources of water undrinkable. Lakes, reservoirs and even entire seas have become vast pools of poison. Lake Baikal in Russia is one of the largest lakes in the world. It contains a rich variety of animals and plants, including 1,300 rare species that do not exist anywhere else in the world. But they are being destroyed by the massive volumes of industrial effluent which pours into the lake everyday. Even where law existed, the government did not have the power to enforce them. Most industries simply ignore the regulations. The Mediterranean Sea occupies 1% of the world’s water surface. But it is the dumping ground for 50% of all marine pollution. Almost 16 countries regularly throw industrial wastes a few miles off shore.
Water is free to everyone. A few years ago people thought that the supply of clean water in the world was limitless. Today, many water supplies have been ruined by pollution and sewage. Clean water is now scarce, and we are at last beginning to respect this precious source. We should do something now.
1. According to the writer, one environmental problem in the world today is ________ .
A. acid rain B. industrial pollution.
C. safe water shortage. D. population explosion .
2. Many sources of water are not drinkable because of _______ .
A. acid rain. B. industrial pollution.
C. garbage D. all A, B, C, are correct
3. What is serious problem of Lake Baikal in Russia?
A. It contains a rich variety of animals and plants.
B. It is polluted by massive volumes of industrial wastes discharged into it .
C. It has 1,300 rare species that do not exist anywhere else in the world .
D. The government did not have the power to enforce laws and regulations.
4. How many countries throw industrial waste into the Mediterranean Sea regularly?
A. nearly 16 B. exactly 16.
C. exactly 15 D. less than 15.
5. What is the message to the reader?
A. We should take action to protect our water resources.
B. We should take all water resources into account.
C. We should limit the use of water resources.
D. We should encourage people to use safe water.
Chang these sentences into active :
1.Lan is helped by the teacher 2.I am surprised by the news 3.The letter will be posted by Lan 4.The cake has been eaten by the children 5.That letter was written by Linda 6.You will be amazed by this news 7.The letter is going to be answered by the secretary 8.Many people are employed by that company 9.The work will be done by Mr Manh 10.The window was washed by Mr Truong 11.This house was built in 1990 12.We have been invited to a party 13.That dictionary has been bought by my sister 14.Is spanish spoken in Peru? 15.Is English spoken by a large of people?
Chọn các đáp án đúng
1. The X-ray ............. in 1895.
A .is said to have been discovered
B. is said to be discovered
C. said to have been discovered
D. said to discover
2. I hate ................ personal questions by newly-acquainted friends.
A. to be asking
B. be asked
C. being asked
D. of asking
3. It ......... that learning a foreign language ............ a lot of time.
A. says/is taken
B. is saying/has been taken
C. is said / takes
D. was said/ was taken
4. .............. yet?
A. Have the letters been typed
B. Have been the letters typed
C. Have the letters typed
D. Had the letters typed
5. ........... the room been cleaned yet?
A. Have
B. Has
C. Did
D. Was
6. In the US, the first stage of compulsory education .............. as elementary education.
A. to be generally known
B. is generally known
C. generally known
D. is generally knowing
7. Portuguese ............ as an official language in this city for three hundred years.
A. has always been spoken
B. has been spoken always
C. has always spoken
D. had always spoken
8. This car .........................
A. was manufactured in Japan by Toyata last year.
B. was manufactured by Toyata in Japan last year.
C. was manufactured last year in Japan by Toyata.
D. last year was manufactured last year in Japan by Toyata.
21. Mike is very happy because his application for a ........ has been accepted ( schorlar)
22. In the era of developement and intergration, there is a great demand for skillful ......in our country ( technical)
23. The low wages and the poor working conditions caused great .... among workers( satisfy)
24. His health was seriously affected and he suffered from constant ....... ( sleep)
25. She prefers wearing clothes made of............ cotton in hot weather ( absorb)
26. There were some ............. guests at the opening ceremony ( distinguish )
27. they felt .......... certain about their success ( tolerate)
28. the gases from that factory are quite ........ ( poison)
29. you can't imagine how ......... the area was damaged by the flood ( serious)
30. she is ...... with her new job ( occupy)
31. The case is under ....... now ( investigate)
32. the government wants to ........ this training centre ( military)
33. I can't think of any possible ....... for his absence ( explain)
34. Graduates find it more and more difficult to find ........... ( employ)
35. the team has had a ............ start to the lesson ( disappoint)
36. the government is responsible for the .............. ofhealth care ( provide)
37. pay is reviewed on a....... basic ( year)
38. the plants are ....... of frost ( tolerate )
39. Lance Armstrong is considered the ..... cyclist in the world ( good)
40.The government has promised to deal with the problem of .............. among young people ( employ )