1. Tanya is older than Eric. Cliff is older than Tanya. Eric is older than Cliff. If the first two statements are true, the third statement is _______. (true/ false/ uncertain) 2. Blueberries cost more than strawberries. Blueberries cost less than raspberries. Raspberries cost more than strawberries and blueberries. If the first two statements are true, the third statement is _______. (true/ false/ uncertain) 3. All the tulips in Zoe's garden are white. All the pansies in Zoe's garden are yellow. All the flowers in Zoe's garden are either white or yellow. If the first two statements are true, the third statement is _______. (true/ false/ uncertain) 4. The temperature on Monday was lower than on Tuesday. The temperature on Wednesday was lower than on Tuesday. The temperature on Monday was higher than on Wednesday. If the first two statements are true, the third statement is _______. (true/ false/ uncertain) 5. Three pencils cost the same as two erasers. Four erasers cost the same as one ruler. Pencils are more expensive than rulers. If the first two statements are true, the third statement is _______. (true/ false/ uncertain) 6. Apartments in the Riverdale Manor cost less than apartments in The Gaslight Commons. Apartments in the Livingston Gate cost more than apartments in The Gaslight Commons. Of the three apartment buildings, the Livingston Gate costs the most. If the first two statements are true, the third statement is _______. (true/ false/ uncertain) 7. All the offices on the 9th floor have wall-to-wall carpeting. No wall-to-wall carpeting is pink. None of the offices on the 9th floor has pink wall-to-wall carpeting. If the first two statements are true, the third statement is _______. (true/ false/ uncertain)
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Each problem consists of three statements. Based on the first two statements, the third statement may be true, false, or uncertain.
1. Tanya is older than Eric.
Cliff is older than Tanya.
Eric is older than Cliff.
If the first two statements are true, the third statement is _false______. (true/ false/ uncertain)
2. Blueberries cost more than strawberries.
Blueberries cost less than raspberries.
Raspberries cost more than strawberries and blueberries.
If the first two statements are true, the third statement is __true_____. (true/ false/ uncertain)
3. All the tulips in Zoe's garden are white.
All the pansies in Zoe's garden are yellow.
All the flowers in Zoe's garden are either white or yellow.
If the first two statements are true, the third statement is _uncertain______. (true/ false/ uncertain)
4. The temperature on Monday was lower than on Tuesday.
The temperature on Wednesday was lower than on Tuesday.
The temperature on Monday was higher than on Wednesday.
If the first two statements are true, the third statement is __false_____. (true/ false/ uncertain)
5. Three pencils cost the same as two erasers.
Four erasers cost the same as one ruler.
Pencils are more expensive than rulers.
If the first two statements are true, the third statement is _false______. (true/ false/ uncertain)
6. Apartments in the Riverdale Manor cost less than apartments in The Gaslight Commons.
Apartments in the Livingston Gate cost more than apartments in The Gaslight Commons.
Of the three apartment buildings, the Livingston Gate costs the most.
If the first two statements are true, the third statement is __true_____. (true/ false/ uncertain)
7. All the offices on the 9th floor have wall-to-wall carpeting.
No wall-to-wall carpeting is pink.
None of the offices on the 9th floor has pink wall-to-wall carpeting.
If the first two statements are true, the third statement is __true_____. (true/ false/ uncertain)
* không chắc lắm câu trả lời *
Mary is 19.
So Jane is: 19 - 5 = 14 ( years old)
Tom is: 14 - 2 = 12 ( years old)
You are: 12 + 4 = 16 ( years old)
And John is: 12 + 7 = 19 ( years old)
So Mary and John are the twins.
Electric cars are better than petrol cars in several ways. The biggest benefit is reduced pollution. In areas where there is a high percentage of electric cars, there is less pollution. But it is important to understand that electric cars still cause pollution. Remember that the electricity to power electric cars has to come from somewhere, which is most likely a power station. Unless these power stations run on solar or wind energy, they are most likely burning fossil fuels to make electricity. The second benefit of electric cars is a reduction in the dependence on foreign oil. There are several countries, including the United States, that don’t want to rely on oil coming from other countries to power their transportation systems. They want the power to come from within their country, and since electric cars can run on electricity from coal or nuclear power stations, there is less of a need to import oil.
1. Electric cars aren’t better than petrol cars. F
2. Electric cars cause less pollution. T
3. People use electricity to power electric cars. T
4. In many countries, people don’t want to import oil more. T
5. Which is the best tittle for the passage?
A. Petrol cars B. Power C. Electric cars D. Benefit of electric cars
6. The word "rely on" in row 7 means __________.
A. base on B. go on C. keep on D. come on
Đáp án A
Câu nào sau đây là đúng về người già?
A. Trong tất cả các nhóm tuổi, người già có tốc độ tăng trưởng nhanh nhất.
B. Nhiều người già hơn sẽ làm giảm áp lực lên phúc lợi xã hội, lương hưu và hệ thống y tế.
C. Sẽ có khoảng 200 triệu người già vào năm 2050.
D. Sự già hóa dân số đang được quản lý hợp lý.
Từ khóa: true / older people
Căn cứ các thông tin sau:
- "The number of older people worldwide is growing faster than any other age group.” (Số lượng người già trên khắp thế giới tăng nhanh hơn bất kì nhóm tuổi nào).
- "The demographic shift will present huge challenges to countries' welfare, pension and healthcare systems." (Sự thay đổi về nhân khẩu sẽ đặt thêm thách thức lên phúc lợi xã hội, lương hưu và hệ thống y tế của các nước).
- “The elderly population is expected to swell by 200 million in the next decade to surpass one billion, and reach two billion by 2050.” (Dân số già được cho là sẽ tăng thêm 200 triệu người trong 2 thập kỉ tới để vượt qua cột mốc 1 tỉ, và sẽ chạm mốc 2 tỉ vào năm 2050).
- “But the UN and a charity that also contributed to the report, Help Age International, say the ageing population is being widely mismanaged."
(Nhưng Liên hiệp quốc và 1 tổ chức từ thiện khác Help Age International tham gia trong bản báo cáo cho rằng dân số già đang bị quản lí rất kém).
giúp mình với
1. Tanya is older than Eric. Cliff is older than Tanya. Eric is older than Cliff. If the first two statements are true, the third statement is _false_. (true/ false/ uncertain) 2. Blueberries cost more than strawberries. Blueberries cost less than raspberries. Raspberries cost more than strawberries and blueberries. If the first two statements are true, the third statement is true_. (true/ false/ uncertain) 3. All the tulips in Zoe's garden are white. All the pansies in Zoe's garden are yellow. All the flowers in Zoe's garden are either white or yellow. If the first two statements are true, the third statement is _uncertain_. (true/ false/ uncertain) 4. The temperature on Monday was lower than on Tuesday. The temperature on Wednesday was lower than on Tuesday. The temperature on Monday was higher than on Wednesday. If the first two statements are true, the third statement is _uncertain_. (true/ false/ uncertain) 5. Three pencils cost the same as two erasers. Four erasers cost the same as one ruler. Pencils are more expensive than rulers. If the first two statements are true, the third statement is_false_. (true/ false/ uncertain) 6. Apartments in the Riverdale Manor cost less than apartments in The Gaslight Commons. Apartments in the Livingston Gate cost more than apartments in The Gaslight Commons. Of the three apartment buildings, the Livingston Gate costs the most. If the first two statements are true, the third statement is_true_. (true/ false/ uncertain) 7. All the offices on the 9th floor have wall-to-wall carpeting. No wall-to-wall carpeting is pink. None of the offices on the 9th floor has pink wall-to-wall carpeting. If the first two statements are true, the third statement is _false_. (true/ false/ uncertain)