Carbohydrates are________ in nature where they serve as an immediate source of energy
A. abundant
B. obscure
C. unstable
D. reliable
K
Khách
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2 tháng 8 2017
Read the passage and answer the following questions: Carbohydrates, which are sugars, are an essential part of a healthy diet. They provide the main source of energy for the body, and they also function to flavor and sweeten foods. Carbohydrates range from simple sugars like glucose to complex sugars such as amylose and 5 amylopectin. Nutritionists estimate that carbohydrates should make up about one-fourth to one-fifth of a person's diet. This translates to about 75-100 grams of carbohydrates per day.
A diet that is deficient in carbohydrates can have an adverse effect 10 on a person's health. When the body lacks a sufficient amount of carbohydrates it must then use its protein supplies for energy, a process called gluconeogenesis. This, however, results in a lack of necessary protein, and further health difficulties may occur. A lack of carbohydrates can also lead to ketosis, a build-up of ketones 15 in the body that causes fatigue, lethargy, and bad breath. 1. What is the main idea of this passage?
(A) Carbohydrates are needed for good health.
(B) Carbohydrates prevent a build-up of proteins.
(C) Carbohydrates can lead to ketosis.
(D) Carbohydrates are an expendable part of a good diet.
2. The word "function" as used in line 3 refers to which of the following?
(A) neglect
(B) serve
(C) dissolve
(D) profess
3. The word "range" as used in line 3 is closest in meaning to which of the following?
(A) probe
(B) proceed
(C) hail
(D) extend
4. In line 5, the word "estimate" could best be replaced by
(A) disbelieve
(B) declare
(C) calculate
(D) wonder
5. According to the passage, what do most nutritionists suggest?
(A) Sufficient carbohydrates will prevent gluconeogenesis.
(B) Carbohydrates are simple sugars called glucose.
(C) Carbohydrates should make up about a quarter of a person's daily diet.
(D) Carbohydrates should be eaten in very small quantities.
6. Which of the following do carbohydrates NOT do?
(A) prevent ketosis
(B) cause gluconeogenesis
(C) provide energy for the body
(D) flavor and sweeten food
7. Which of the following words could best replace "deficient" as used in line 9?
(A) outstanding
(B) abundant
(C) insufficient
(D) unequal
8. What does the word "this" refer to in line 13?
(A) using protein supplies for energy
(B) converting carbohydrates to energy
(C) having a deficiency in carbohydrates
(D) having an insufficient amount of protein
9. According to the passage, which of the following does NOT describe carbohydrates?
(A) a protein supply
(B) a necessity
(C) a range of sugars
(D) an energy source
10. The word "lack" in line 13 is most similar to which of the following?
(A) plethora
(B) shortage
(C) derivation
(D) commission
11. Which of the following best describes the author's tone?
(A) sensitive
(B) emotional
(C) informative
(D) regretful
12. Which of the following best describes the organization of this passage?
(A) cause and result
(B) comparison and contrast
(C) specific to general
(D) definition and example
LD
2 tháng 8 2017
Read the passage and answer the following questions:
Carbohydrates, which are sugars, are an essential part of a healthy diet. They provide the main source of energy for the body, and they also function to flavor and sweeten foods. Carbohydrates range from simple sugars like glucose to complex sugars such as amylose and 5 amylopectin. Nutritionists estimate that carbohydrates should make up about one-fourth to one-fifth of a person's diet. This translates to about 75-100 grams of carbohydrates per day.
A diet that is deficient in carbohydrates can have an adverse effect 10 on a person's health. When the body lacks a sufficient amount of carbohydrates it must then use its protein supplies for energy, a process called gluconeogenesis. This, however, results in a lack of necessary protein, and further health difficulties may occur. A lack of carbohydrates can also lead to ketosis, a build-up of ketones 15 in the body that causes fatigue, lethargy, and bad breath.
1. What is the main idea of this passage?
(A) Carbohydrates are needed for good health.
(B) Carbohydrates prevent a build-up of proteins.
(C) Carbohydrates can lead to ketosis.
(D) Carbohydrates are an expendable part of a good diet.
2. The word "function" as used in line 3 refers to which of the following?
(A) neglect
(B) serve
(C) dissolve
(D) profess
3. The word "range" as used in line 3 is closest in meaning to which of the following?
(A) probe
(B) proceed
(C) hail
(D) extend
4. In line 5, the word "estimate" could best be replaced by
(A) disbelieve
(B) declare
(C) calculate
(D) wonder
5. According to the passage, what do most nutritionists suggest?
(A) Sufficient carbohydrates will prevent gluconeogenesis.
(B) Carbohydrates are simple sugars called glucose.
(C) Carbohydrates should make up about a quarter of a person's daily diet.
(D) Carbohydrates should be eaten in very small quantities.
6. Which of the following do carbohydrates NOT do?
(A) prevent ketosis
(B) cause gluconeogenesis
(C) provide energy for the body
(D) flavor and sweeten food
7. Which of the following words could best replace "deficient" as used in line 9?
(A) outstanding
(B) abundant
(C) insufficient
(D) unequal
8. What does the word "this" refer to in line 13?
(A) using protein supplies for energy
(B) converting carbohydrates to energy
(C) having a deficiency in carbohydrates
(D) having an insufficient amount of protein
9. According to the passage, which of the following does NOT describe carbohydrates?
(A) a protein supply
(B) a necessity
(C) a range of sugars
(D) an energy source
10. The word "lack" in line 13 is most similar to which of the following?
(A) plethora
(B) shortage
(C) derivation
(D) commission
11. Which of the following best describes the author's tone?
(A) sensitive
(B) emotional
(C) informative
(D) regretful
12. Which of the following best describes the organization of this passage?
(A) cause and result
(B) comparison and contrast
(C) specific to general
(D) definition and example
9 tháng 10 2019
Đáp án C
Đề: Từ nào sau đây thay thế tốt nhất từ “deficient” ở dòng 7?
outstanding (adj): vượt trội, xuất sắc
abundant (adj): nhiều, dồi dào
insufficient (adj): không đủ = deficient (adj): thiếu
unequal (adj): không bằng nhau, bất bình đẳng
8 tháng 9 2019
Đáp án A
Đề: Theo bài đọc, điều nào sau đây KHÔNG mô tả carbohydrates?
A. là một nguồn cung protein
B. là một sự cần thiết
(Carbohydrates, which are sugars, are an essential part of a healthy diet.
C. các loại đường
(Cacbohydrates range from simple sugars like glucose to complex sugar …)
D. một nguồn năng lượng
(They provide the main source of energy for the body…)
4 tháng 12 2018
Đáp án : C
Thông tin ở các câu:
- … they also function to flavor and sweeten foods.
- When the body lacks a sufficient amount of carbohydrates it must then use its protein supplies for energy
- A lack of carbohydrates can also lead to ketosis
Chỉ có “cause gluconeogenesis “ là không được nhắc đến
22 tháng 12 2018
Đáp án B
Đề: Carbohydrates KHÔNG làm được điều nào sau đây?
A. phòng ngừa hội chứng ketosis
B. gây nên quá trình gluconeogenesis
C. cung cấp năng lượng cho cơ thể
D. tạo hương bị và làm ngọt thực phẩm
Dựa vào đầu đoạn 2:”When the body lacks a suffcient amount carbohydrates if must then use its protein supplies for energy, a process called gluconeogenesis.”
(Khi cơ thể không có đủ lượng cacbohydrates, nó phải dùng nguồn cung protein làm năng lượng, quá trình này gọi là gluconeogenesis.)
3 tháng 5 2019
Đáp án : B
“Carbohydrates, which are sugars, are an essential part of a healthy diet.” (range of sugar, an essential part = a necessity)
Và đoạn đầu có đề cập : “They provide the main source of energy for the body”
7 tháng 8 2018
Đáp án A
Từ “this” ở dòng 8 nói về?
A. sủ dụng các nguồn cung protein làm năng lượng
B. chuyển đổi carbohydrates thành năng lượng
C. có sự thiếu hụt carbohydrates
D. có sự thiếu hụt protein
Dòng trước: “…, it must then use its protein supplies for energy, a procees called gluconeogenesis,…”
17 tháng 11 2017
Đáp án D
Đề: Ý nào sau đây mô tả đúng nhất cấu trúc của bài đọc?
A. Nguyên nhất và kết quả
B. So sánh và tương phản
C. Từ cụ thể tới khái quát
D. Khái niệm/ Định nghĩa và ví dụ
Cả bài đọc ta thấy tác giả định nghĩa “carbohydrates” ở đoạn 1, “diet” ở đoạn 2 và các ví dụ minh hoa
A