Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each...

LQ

Lê Quỳnh Anh

25 tháng 5 2018

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Early humans saw a variety of natural colours around them, from the browns and greens of the soil and plants to the deep blues and red of the sky. They painted their bodies with colours from nature to signal aggression toward an enemy, or to make themselves attractive to a mate.A girl and a rainbow of crushed ice flavors at Chowpatty Beach, India. Over the...

Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

Early humans saw a variety of natural colours around them, from the browns and greens of the soil and plants to the deep blues and red of the sky. They painted their bodies with colours from nature to signal aggression toward an enemy, or to make themselves attractive to a mate.

A girl and a rainbow of crushed ice flavors at Chowpatty Beach, India. Over the centuries, the sources of colours such as blue, purple, and red were high valued and they were often worth as much as gold. In the 19^th century, a young chemistry student manufactured the first synthetic dye, and suddenly the world became a much more colorful place. In the 20^th century, scientists discovered the psychological effects of colours, and people found ways to use this discovery to influence our feelings and behaviors.

RED

Red, colour of blood, symbolises fire, love and anger. In Eastern cultures, people believe it brings luck, wealth and success. In humans, the color red can send different messages. Some people redden, for example, when they are angry or embarrassed. Researchers have discovered that in sports the team that is wearing red is more likely to win. Why? Because red seems to be the color that signals dominance, giving those dressed in red an advantage in sporting events. In many animal species (including humans), contact with this bold color causes the heart rate to increase. However, one of red’s lighter shades, pink, can have the opposite effect on people. Man in prisons are less agressive when the walls are a specific shade of pink.

YELLOW

Yellow, the colour that comes to mind when we think of sunshine, is found throughout nature and the man-made world as a colour that commands attention; indeed, it is one of the easiest colours to see. This highly visible shade is found on everything from school buses to traffic signs and pens that we use to highlight important information in a text. The colour is also used to caution people; football players, for example, are shown a yellow card as a reminder to behave. It can be used as a stimulant as well: in a number of studies, yellow has been found to help children focus on their work and do better at school.

BLUE

Blue, the colour of the sky and sea, is associated in many cultures with water, religious objects, and protection against evil. Its darker shades represent calm, stability and power. Dark blue, for example, is the colour of the business suit or police uniform; it tells others, ‘I am in control,’ or ‘I am trustworthy.’ Blue is also associated with sadness. It’s common in English, for example, when you are feeling sad or depressed, to talk about ‘feeling blue,’ while in Iran, blue is the colour of mourning, worn when a person dies. Like pink, blue has a calming effect on people. Rooms painted blue help people to relax or sleep. Sleeping pills are often coloured blue to suggest exactly this idea. This colour also seems to reduce feelings of hunger. Blue food is rarely seen in nature, and when it is, such food is usually no longer healthy to consume. It’s just one more example of the power that colour can hold over us.

The first man-made colors were produced

A. only recently

B. in the 20^th century

C. in the 19th century

D. centuries ago

#Mẫu giáo

1

DH

Dương Hoàn Anh

25 tháng 5 2018

Đáp án C

Kiến thức: Đọc hiểu

Giải thích:

Những màu nhân tạo đầu tiên được sản xuất

A. gần đây

B. trong thế kỷ 20

C. trong thế kỷ 19

D. nhiều thế kỷ trước

Thông tin: In the 19^th century, a young chemistry student manufactured the first synthetic dye, and suddenly the world became a much more colorful place.

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LQ

Lê Quỳnh Anh

13 tháng 12 2019

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Early humans saw a variety of natural colours around them, from the browns and greens of the soil and plants to the deep blues and red of the sky. They painted their bodies with colours from nature to signal aggression toward an enemy, or to make themselves attractive to a mate.A girl and a rainbow of crushed ice flavors at Chowpatty Beach, India. Over the...

Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

Early humans saw a variety of natural colours around them, from the browns and greens of the soil and plants to the deep blues and red of the sky. They painted their bodies with colours from nature to signal aggression toward an enemy, or to make themselves attractive to a mate.

A girl and a rainbow of crushed ice flavors at Chowpatty Beach, India. Over the centuries, the sources of colours such as blue, purple, and red were high valued and they were often worth as much as gold. In the 19^th century, a young chemistry student manufactured the first synthetic dye, and suddenly the world became a much more colorful place. In the 20^th century, scientists discovered the psychological effects of colours, and people found ways to use this discovery to influence our feelings and behaviors.

RED

Red, colour of blood, symbolises fire, love and anger. In Eastern cultures, people believe it brings luck, wealth and success. In humans, the color red can send different messages. Some people redden, for example, when they are angry or embarrassed. Researchers have discovered that in sports the team that is wearing red is more likely to win. Why? Because red seems to be the color that signals dominance, giving those dressed in red an advantage in sporting events. In many animal species (including humans), contact with this bold color causes the heart rate to increase. However, one of red’s lighter shades, pink, can have the opposite effect on people. Man in prisons are less agressive when the walls are a specific shade of pink.

YELLOW

Yellow, the colour that comes to mind when we think of sunshine, is found throughout nature and the man-made world as a colour that commands attention; indeed, it is one of the easiest colours to see. This highly visible shade is found on everything from school buses to traffic signs and pens that we use to highlight important information in a text. The colour is also used to caution people; football players, for example, are shown a yellow card as a reminder to behave. It can be used as a stimulant as well: in a number of studies, yellow has been found to help children focus on their work and do better at school.

BLUE

Blue, the colour of the sky and sea, is associated in many cultures with water, religious objects, and protection against evil. Its darker shades represent calm, stability and power. Dark blue, for example, is the colour of the business suit or police uniform; it tells others, ‘I am in control,’ or ‘I am trustworthy.’ Blue is also associated with sadness. It’s common in English, for example, when you are feeling sad or depressed, to talk about ‘feeling blue,’ while in Iran, blue is the colour of mourning, worn when a person dies. Like pink, blue has a calming effect on people. Rooms painted blue help people to relax or sleep. Sleeping pills are often coloured blue to suggest exactly this idea. This colour also seems to reduce feelings of hunger. Blue food is rarely seen in nature, and when it is, such food is usually no longer healthy to consume. It’s just one more example of the power that colour can hold over us.

What are English speakers refering to when they talk about “feeling blue”?

A. being in control

B. being upset when someone dies

C. being calm

D. being sad

#Mẫu giáo

1

DH

Dương Hoàn Anh

13 tháng 12 2019

Đáp án D

Kiến thức: Đọc hiểu

Giải thích:

Người Anh đề cập gì khi nói đến "cảm thấy xanh"?

A. kiểm soát

B. buồn bã khi ai đó chết

C. bình tĩnh

D. buồn

“feeling blue” = sad: buồn bã

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LQ

Lê Quỳnh Anh

21 tháng 6 2018

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Early humans saw a variety of natural colours around them, from the browns and greens of the soil and plants to the deep blues and red of the sky. They painted their bodies with colours from nature to signal aggression toward an enemy, or to make themselves attractive to a mate.A girl and a rainbow of crushed ice flavors at Chowpatty Beach, India. Over the...

Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

Early humans saw a variety of natural colours around them, from the browns and greens of the soil and plants to the deep blues and red of the sky. They painted their bodies with colours from nature to signal aggression toward an enemy, or to make themselves attractive to a mate.

A girl and a rainbow of crushed ice flavors at Chowpatty Beach, India. Over the centuries, the sources of colours such as blue, purple, and red were high valued and they were often worth as much as gold. In the 19^th century, a young chemistry student manufactured the first synthetic dye, and suddenly the world became a much more colorful place. In the 20^th century, scientists discovered the psychological effects of colours, and people found ways to use this discovery to influence our feelings and behaviors.

RED

Red, colour of blood, symbolises fire, love and anger. In Eastern cultures, people believe it brings luck, wealth and success. In humans, the color red can send different messages. Some people redden, for example, when they are angry or embarrassed. Researchers have discovered that in sports the team that is wearing red is more likely to win. Why? Because red seems to be the color that signals dominance, giving those dressed in red an advantage in sporting events. In many animal species (including humans), contact with this bold color causes the heart rate to increase. However, one of red’s lighter shades, pink, can have the opposite effect on people. Man in prisons are less agressive when the walls are a specific shade of pink.

YELLOW

Yellow, the colour that comes to mind when we think of sunshine, is found throughout nature and the man-made world as a colour that commands attention; indeed, it is one of the easiest colours to see. This highly visible shade is found on everything from school buses to traffic signs and pens that we use to highlight important information in a text. The colour is also used to caution people; football players, for example, are shown a yellow card as a reminder to behave. It can be used as a stimulant as well: in a number of studies, yellow has been found to help children focus on their work and do better at school.

BLUE

Blue, the colour of the sky and sea, is associated in many cultures with water, religious objects, and protection against evil. Its darker shades represent calm, stability and power. Dark blue, for example, is the colour of the business suit or police uniform; it tells others, ‘I am in control,’ or ‘I am trustworthy.’ Blue is also associated with sadness. It’s common in English, for example, when you are feeling sad or depressed, to talk about ‘feeling blue,’ while in Iran, blue is the colour of mourning, worn when a person dies. Like pink, blue has a calming effect on people. Rooms painted blue help people to relax or sleep. Sleeping pills are often coloured blue to suggest exactly this idea. This colour also seems to reduce feelings of hunger. Blue food is rarely seen in nature, and when it is, such food is usually no longer healthy to consume. It’s just one more example of the power that colour can hold over us.

According to the pasage, the colour red______.

A. is believed to embarrass people

B. gives an advantage to team members who wear it.

C. symbolises bad luck

D. makes people less aggressive.

#Mẫu giáo

1

DH

Dương Hoàn Anh

21 tháng 6 2018

Đáp án B

Kiến thức: Đọc hiểu

Giải thích:

Theo đoạn văn, màu đỏ

A. được tin rằng làm cho người ta xấu hổ

B. mang lại lợi thế cho các thành viên trong nhóm mặc nó

C. tượng trưng cho sự không may mắn

D. làm cho người ta ít hăng hái

Thông tin: Researchers have discovered that in sports the team that is wearing red is more likely to win. Why? Because red seems to be the color that signals dominance, giving those dressed in red an advantage in sporting events.

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LQ

Lê Quỳnh Anh

7 tháng 6 2017

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Early humans saw a variety of natural colours around them, from the browns and greens of the soil and plants to the deep blues and red of the sky. They painted their bodies with colours from nature to signal aggression toward an enemy, or to make themselves attractive to a mate.A girl and a rainbow of crushed ice flavors at Chowpatty Beach, India. Over the...

Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

Early humans saw a variety of natural colours around them, from the browns and greens of the soil and plants to the deep blues and red of the sky. They painted their bodies with colours from nature to signal aggression toward an enemy, or to make themselves attractive to a mate.

A girl and a rainbow of crushed ice flavors at Chowpatty Beach, India. Over the centuries, the sources of colours such as blue, purple, and red were high valued and they were often worth as much as gold. In the 19^th century, a young chemistry student manufactured the first synthetic dye, and suddenly the world became a much more colorful place. In the 20^th century, scientists discovered the psychological effects of colours, and people found ways to use this discovery to influence our feelings and behaviors.

RED

Red, colour of blood, symbolises fire, love and anger. In Eastern cultures, people believe it brings luck, wealth and success. In humans, the color red can send different messages. Some people redden, for example, when they are angry or embarrassed. Researchers have discovered that in sports the team that is wearing red is more likely to win. Why? Because red seems to be the color that signals dominance, giving those dressed in red an advantage in sporting events. In many animal species (including humans), contact with this bold color causes the heart rate to increase. However, one of red’s lighter shades, pink, can have the opposite effect on people. Man in prisons are less agressive when the walls are a specific shade of pink.

YELLOW

Yellow, the colour that comes to mind when we think of sunshine, is found throughout nature and the man-made world as a colour that commands attention; indeed, it is one of the easiest colours to see. This highly visible shade is found on everything from school buses to traffic signs and pens that we use to highlight important information in a text. The colour is also used to caution people; football players, for example, are shown a yellow card as a reminder to behave. It can be used as a stimulant as well: in a number of studies, yellow has been found to help children focus on their work and do better at school.

BLUE

Blue, the colour of the sky and sea, is associated in many cultures with water, religious objects, and protection against evil. Its darker shades represent calm, stability and power. Dark blue, for example, is the colour of the business suit or police uniform; it tells others, ‘I am in control,’ or ‘I am trustworthy.’ Blue is also associated with sadness. It’s common in English, for example, when you are feeling sad or depressed, to talk about ‘feeling blue,’ while in Iran, blue is the colour of mourning, worn when a person dies. Like pink, blue has a calming effect on people. Rooms painted blue help people to relax or sleep. Sleeping pills are often coloured blue to suggest exactly this idea. This colour also seems to reduce feelings of hunger. Blue food is rarely seen in nature, and when it is, such food is usually no longer healthy to consume. It’s just one more example of the power that colour can hold over us.

The phrase “this idea” refers to _____________.

A. food

B. stopping hunger

C. painting rooms

D. relaxation

#Mẫu giáo

1

DH

Dương Hoàn Anh

7 tháng 6 2017

Đáp án D

Kiến thức: Đọc hiểu

Giải thích:

Cụm từ "ý tưởng này" dùng để chỉ

A. thức ăn

C. sơn phòng

B. ngừng cơn đói

D. sự thư giãn

Rooms painted blue help people to relax or sleep. Sleeping pills are often coloured blue to suggest exactly this idea.

Các phòng sơn màu xanh giúp mọi người thư giãn hoặc ngủ. Thuốc ngủ thường có màu xanh dương để gợi ý chính xác ý tưởng này.

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LQ

Lê Quỳnh Anh

16 tháng 1 2017

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Early humans saw a variety of natural colours around them, from the browns and greens of the soil and plants to the deep blues and red of the sky. They painted their bodies with colours from nature to signal aggression toward an enemy, or to make themselves attractive to a mate.A girl and a rainbow of crushed ice flavors at Chowpatty Beach, India. Over the...

Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

Early humans saw a variety of natural colours around them, from the browns and greens of the soil and plants to the deep blues and red of the sky. They painted their bodies with colours from nature to signal aggression toward an enemy, or to make themselves attractive to a mate.

A girl and a rainbow of crushed ice flavors at Chowpatty Beach, India. Over the centuries, the sources of colours such as blue, purple, and red were high valued and they were often worth as much as gold. In the 19^th century, a young chemistry student manufactured the first synthetic dye, and suddenly the world became a much more colorful place. In the 20^th century, scientists discovered the psychological effects of colours, and people found ways to use this discovery to influence our feelings and behaviors.

RED

Red, colour of blood, symbolises fire, love and anger. In Eastern cultures, people believe it brings luck, wealth and success. In humans, the color red can send different messages. Some people redden, for example, when they are angry or embarrassed. Researchers have discovered that in sports the team that is wearing red is more likely to win. Why? Because red seems to be the color that signals dominance, giving those dressed in red an advantage in sporting events. In many animal species (including humans), contact with this bold color causes the heart rate to increase. However, one of red’s lighter shades, pink, can have the opposite effect on people. Man in prisons are less agressive when the walls are a specific shade of pink.

YELLOW

Yellow, the colour that comes to mind when we think of sunshine, is found throughout nature and the man-made world as a colour that commands attention; indeed, it is one of the easiest colours to see. This highly visible shade is found on everything from school buses to traffic signs and pens that we use to highlight important information in a text. The colour is also used to caution people; football players, for example, are shown a yellow card as a reminder to behave. It can be used as a stimulant as well: in a number of studies, yellow has been found to help children focus on their work and do better at school.

BLUE

Blue, the colour of the sky and sea, is associated in many cultures with water, religious objects, and protection against evil. Its darker shades represent calm, stability and power. Dark blue, for example, is the colour of the business suit or police uniform; it tells others, ‘I am in control,’ or ‘I am trustworthy.’ Blue is also associated with sadness. It’s common in English, for example, when you are feeling sad or depressed, to talk about ‘feeling blue,’ while in Iran, blue is the colour of mourning, worn when a person dies. Like pink, blue has a calming effect on people. Rooms painted blue help people to relax or sleep. Sleeping pills are often coloured blue to suggest exactly this idea. This colour also seems to reduce feelings of hunger. Blue food is rarely seen in nature, and when it is, such food is usually no longer healthy to consume. It’s just one more example of the power that colour can hold over us.

Yellow is used to highlight information in a text because

A. it is an important colour.

B. it can be used to caution people.

C. it is a highly visible colour.

D. people prefer this colour to other colours.

#Mẫu giáo

1

DH

Dương Hoàn Anh

16 tháng 1 2017

Đáp án B

Kiến thức: Đọc hiểu

Giải thích:

Màu vàng được sử dụng để làm nổi bật thông tin trong một văn bản vì

A. nó là một màu sắc quan trọng.

C. nó là một màu dễ nhận thấy.

B. nó có thể được dùng để cảnh báo mọi người.

D. người ta thích màu này hơn màu khác.

Thông tin: This highly visible shade is found on everything from school buses to traffic signs and pens that we use to highlight important information in a text. The colour is also used to caution people

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LQ

Lê Quỳnh Anh

21 tháng 6 2017

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Early humans saw a variety of natural colours around them, from the browns and greens of the soil and plants to the deep blues and red of the sky. They painted their bodies with colours from nature to signal aggression toward an enemy, or to make themselves attractive to a mate.A girl and a rainbow of crushed ice flavors at Chowpatty Beach, India. Over the...

Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

Early humans saw a variety of natural colours around them, from the browns and greens of the soil and plants to the deep blues and red of the sky. They painted their bodies with colours from nature to signal aggression toward an enemy, or to make themselves attractive to a mate.

A girl and a rainbow of crushed ice flavors at Chowpatty Beach, India. Over the centuries, the sources of colours such as blue, purple, and red were high valued and they were often worth as much as gold. In the 19^th century, a young chemistry student manufactured the first synthetic dye, and suddenly the world became a much more colorful place. In the 20^th century, scientists discovered the psychological effects of colours, and people found ways to use this discovery to influence our feelings and behaviors.

RED

Red, colour of blood, symbolises fire, love and anger. In Eastern cultures, people believe it brings luck, wealth and success. In humans, the color red can send different messages. Some people redden, for example, when they are angry or embarrassed. Researchers have discovered that in sports the team that is wearing red is more likely to win. Why? Because red seems to be the color that signals dominance, giving those dressed in red an advantage in sporting events. In many animal species (including humans), contact with this bold color causes the heart rate to increase. However, one of red’s lighter shades, pink, can have the opposite effect on people. Man in prisons are less agressive when the walls are a specific shade of pink.

YELLOW

Yellow, the colour that comes to mind when we think of sunshine, is found throughout nature and the man-made world as a colour that commands attention; indeed, it is one of the easiest colours to see. This highly visible shade is found on everything from school buses to traffic signs and pens that we use to highlight important information in a text. The colour is also used to caution people; football players, for example, are shown a yellow card as a reminder to behave. It can be used as a stimulant as well: in a number of studies, yellow has been found to help children focus on their work and do better at school.

BLUE

Blue, the colour of the sky and sea, is associated in many cultures with water, religious objects, and protection against evil. Its darker shades represent calm, stability and power. Dark blue, for example, is the colour of the business suit or police uniform; it tells others, ‘I am in control,’ or ‘I am trustworthy.’ Blue is also associated with sadness. It’s common in English, for example, when you are feeling sad or depressed, to talk about ‘feeling blue,’ while in Iran, blue is the colour of mourning, worn when a person dies. Like pink, blue has a calming effect on people. Rooms painted blue help people to relax or sleep. Sleeping pills are often coloured blue to suggest exactly this idea. This colour also seems to reduce feelings of hunger. Blue food is rarely seen in nature, and when it is, such food is usually no longer healthy to consume. It’s just one more example of the power that colour can hold over us.

What is this text mainly about?

A. How views of colour have changed

B. The sources of colour

C. How colour influences people

D. How colour has a calming effect

#Mẫu giáo

1

DH

Dương Hoàn Anh

21 tháng 6 2017

Đáp án A

Kiến thức: Đọc hiểu

Giải thích:

Văn bản này chủ yếu là về điều gì?

A. Quan điểm về màu sắc đã thay đổi như thế nào

B. Các nguồn màu sắc

C. Màu sắc ảnh hưởng thế nào đến người

D. Màu sắc có tác dụng làm dịu

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LQ

Lê Quỳnh Anh

26 tháng 9 2017

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 29 to 36.What is commonly called pepper in reality comes from two very different families of plants. Black and white pepper both come from the fruit of the Piper nigrum, a vine with fruits called peppercorns. The peppercorns turn from green to red as they ripen and finally blacken as they dry out. The dried-out peppercorns are ground to obtain black...

Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 29 to 36.

What is commonly called pepper in reality comes from two very different families of plants. Black and white pepper both come from the fruit of the Piper nigrum, a vine with fruits called peppercorns. The peppercorns turn from green to red as they ripen and finally blacken as they dry out. The dried-out peppercorns are ground to obtain black pepper. White pepper, which has a more subtle flavour than black pepper, comes from the same peppercorns as black pepper. To obtain white pepper, the outer hull of the peppercorn, the pericarp, is removed before the peppercorn is ground. Red and green pepper, on the other hand, come from a completely different family from black and white pepper. Red and green peppers are from the genus Capsicum. Plants of this type generally have tiny white flowers and fruit which can be any of a number of colours, shapes and sizes. These peppers range in flavour from very mild and sweet to the most incredibly burning taste imaginable. Bell peppers are the most mild, while habanros are the most burning.

Christopher Columbus is responsible for the present-day confusion over what pepper is. The Piper nigrum variety of pepper was highly valued for centuries, and high demand for pepper by Europeans was a major cause of the fifteen-century push to locate ocean routes to the spice-growing regions of Asia. When Columbus arrived in the New World in 1492, he was particularly interested in finding black pepper because of the high price it would command in Europe. Columbus came across plants from the Capsicum family in use among people of the New World, and he incorrectly identified them as relatives of black pepper. Columbus introduced the spicy Capsicum chili peppers to Europeans on his return from the 1492 voyage, and traders later spread them to Asia and Africa. These Capsicum peppers have continued to be called peppers in spite of the fact that they are not related to the black and white pepper of the Piper nigrum family

The pronoun them refers to ______.

A. Europeans

B. plants

C. people

D. relatives

#Mẫu giáo

1

DH

Dương Hoàn Anh

26 tháng 9 2017

Chọn B

Kiến thức: Đọc hiểu

Giải thích:

Đại từ “them” thay thế cho ______.

A. Châu Âu

B. thực vật

C. người

D. họ hàng

Thông tin: Columbus came across plants from the Capsicum family in use among people of the New World, and he incorrectly identified them as relatives of black pepper.

Tạm dịch: Columbus tình cờ biết loại thực vật thuộc họ cây ớt chuông được sử dụng giữa những người của Thế Giới Mới, và ông ấy đã nhận định sai lầm chúng có họ hàng với hạt tiêu đen

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LQ

Lê Quỳnh Anh

7 tháng 8 2018

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 30 to 34. Genetic modification of foods is not a new practice. It has been practiced for thousands of years under the name of "selective breeding". Animals and plants were chosen because they had traits that humans found useful. Some animals were larger and stronger than others, or they yielded more food, or they had some other trait that humans valued....

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