理工英语4第七单元

一、选择填空：阅读下面的对话或句子，从

A

、

B

、

C

三个选 项中选出一个能填入空白处的

最佳选项。

1

、

—

What would you like to have for breakfast?

—

. Would you like to have a taste?

A. Twisted cruller, I bought it this morning

2

、

—

Do you eat porridge every day?

—

.

B. No, sometimes I’d have a cup of soybean milk, a boiled egg and a steamed bun for

my breakfast

3

、

—

What is U.S’s experience in food safety management?

—

.

B. They are improving the legal system all the time and very strict in law enforcement

4

、

Animal farming about half of all human-caused greenhouse gases.

B. accounts for

5

、

They should never try to pursue profit health and life of people.

C. at the expense of

6

、

—

So how can we buy safe food?

—

.

C. When we choose food, we must remember to check its tag, confirming whether the

7

、

—

I think the other reason can be identified from the industrialization of food production.

—

. Some illegal traders care about nothing but making money.

选择一项：

C. Yes, you bet

8

、

—

Do you eat porridge every day?

—

.

B. No, sometimes I’d have a cup of soybean mi

lk, a boiled egg and a steamed bun for

my breakfast

9

、

I am really by fresh ingredients, intricate cooking and diverse traditions of Chinese food.

A. fascinated

10

、

Some illegal traders care about nothing but .

B. making money

11

、

—

I think the other reason can be identified from the industrialization of food

production.

—

. Some illegal traders care about nothing but making money.

C. Yes, you bet

12

、

—

So how can we buy safe food?

—

.

C. When we choose food, we must remember to check its tag, confirming whether the

basic information is marked on it

13

、

—

What is U.S’s experience in food safety management?

—

.

B. They are improving the legal system all the time and very strict in law enforcement

14

、

The technology has several advantages earlier attempts to engineer meat in vitro

.

C. compare with

15

、

The problem is uneven distribution, 870 million suffering from hunger.

C. leaving

二、

阅读理解：

阅读下面的短文，

根据文章内容从

A

、

B

、

C

三 个选项中选出一个最佳选项。

（教材课文原文）

A. By

回答

B. is projected

2050, the world's population

回答

B. even

to rise to 9 billion from just over 7 billion currently. Proponents of genetically modified

foods say they are safe and can boost harvests

回答

in bad conditions by protecting against pests, weeds and drought. This, they argue, will be

essential to meeting the needs of a booming population in decades to come and avoiding

starvation.

回答

C. However

Doug Gurian-Sherman, senior scientist for the food and environment program at the

Union of Concerned Scientists, an advocacy group, said genetic engineering for insect

resistance has provided only a modest increase in yields since the 1990s and

drought-resistant strains have only

回答

reduced losses from drought.

A. modestly

（二）

阅读下面的短文，根据文章内容从

A

、

B

、

C

三个选项中选出一个最佳选项。

（课外选材）

According to experts, the advantage of modified food is that it helps in preventing the

occurrence of allergies and also has a long shelf life. However, a major portion of the

population is against the consumption of genetically modified food and is concerned about

its disadvantages. If you are also confused about the consumption of genetically modified

food, read through the pros and cons given below and decide for yourself.

Advantages of Genetically Modified Foods

●One of the most prominent advantages of genetically modified food is that it helps in

controlling the occurrence of certain diseases. Certain foods cause allergy to people.

Their genetic modification alters the DNA system of these foods, thereby making them

non-allergic.

●Another major advantage of such type of foods is that they grow faster than their

traditionally grown counterparts. As a result, there is greater productivity and more food.

●A person need not bother about any additional costs, such as bu

ying chemicals and

pesticides, when it comes to genetically engineered food. The food is naturally

pest-resistant.

●Farming these foods can be a great way to fight world hunger. Since these crops grow

faster or more effectively, increased production would help countries wherein crops may

not normally prosper because of less than desirable environmental conditions.

●The increased shelf life of these food products helps in reducing the quantity of rotten

food.

Disadvantages of Genetically Modified Foods

●The biggest disadvantage of genetically modified food is that they have harmful effects

on the human body. The consumption of these genetically engineered foods can lead to

development of diseases that are immune to antibiotics.

●Chances of developing can

cer are high in people who regularly consume engineered

food.

●Since it is an unnatural way of producing foods, there is an increased health hazard such

as allergens, transfer of antibiotic resistance markers and unknown effects.