The chairs felt hard and uncomfortable.
A. plastic
B. simple
C. relaxed
D. soft
K
Khách
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5 tháng 9 2019
Đáp án D.
A. lively: sinh động, hoạt bát, sôi nổi
B. large: rộng
C. old: cũ, già
D. unsociable: không hòa đồng, không thân thiện, khó gần
- convivial: thân thiện, vui vẻ >< unsociable.
KS
1 tháng 2 2018
Two or more syllables : comfortable; popular; modern; expensive; generous; relaxed; pretty; difficult .
TD
11 tháng 3 2017
Read the following passage and answer the question below.
Most people make about two kilograms of waste every day, and about 7% of this waste is made up of plastic products that can be recycled. Today, plastic can be recycled into products like picnic tables, park benches, and even high-chairs.
First, plastic is collected and taken to a recycling center where it is sorted out. When plastic is sorted out, symbols have to be printed on every recyclable plastic product used. There are two kinds of polyethylene plastic, too: high density polyethylene (HDPE), and low density polyethylene (LDPE). HDPE plastic is usually used to make furniture, and LDPE plastic is usually used to make things like milk jugs, plastic and grocery bags.
1. Approximately, how much plastic waste does a person make every day?
Most people make about two kilograms of waste every day, and about 7% of this waste is made up of plastic.
2. Where is the plastic sorted out?
A recycling center
3. How many kinds of polyethylene plastic?
There are two kinds of polyethylene plastic, too: high density polyethylene (HDPE), and low density polyethylene (LDPE).
4. What is HDPE plastic usually used to make?
HDPE plastic is usually used to make furniture
5. Give an example of product that is made from LDPE plastic?
Milk jugs, plastic and grocery bags is usually used to make from LDPE plastic.
MB
1 tháng 10 2020
Polyester is now being used for bottles. ICI, the chemicals and plastics company, believes that it is now beginning to break the grip of glass on the bottle business and thus take advantage of this huge market.
All the plastics manufacturers have been experiencing hard times as their traditional products have been doing badly world-wide for the last few years. Between 1982 and 1984 the Plastics Division of ICI had lost a hundred and twenty million dollars, and they felt that the most hopeful new market was in packaging, bottles and cans.
Since 1982 it has opened three new factories’ producing “Melinar” , the raw material from which high quality polyester bottles are made.
The polyester bottle was born in the 1970s, when soft drinks companies : like Coca Cola started selling their drinks in grant two-litre containers. Because of the build-up of the pressure of gas in these large containers, glass was unsuitable. Nor was PVC, the plastic which had been used for bottles since the 1960s, suitable for drinks with gas in them. A new plastic had to be made.
Glass is still cheaper for the smaller bottles, and will continue to be so unless oil and plastic become much cheaper, but plastic does well for the larger sizes.
Polyester bottles are virtually unbreakable. The manufacturers claim they are also lighter, less noisy when being handled, and can be re-used. Shopkeepers and other business people are unlikely to object to a change from glass to polyester, since these bottles mean few breakages, which are costly and time-consuming.The public, though, have been more difficult to persuade. ICI’s commercial department is developing different bottles with interesting shapes, to try and make them visually more attractive to the public.
The next step could be to develop a plastic which could replace tins for food. The problem here is the high temperatures necessary for cooking the food in the container.
1.Plastics of various kinds have been used for making bottles
A. since 1982.
B. since the 1970s but only for large bottles.
C. since the 1960s but not for liquids with gas in them.
D. since companies like Coca Cola first tried them.
2. Why is ICI’s Plastics Division interested in polyester for bottles?
A. The other things they make are not selling well.
B. Glass manufacturers cannot make enough new bottles.
C. They have factories which could be adapted to make it.
D. The price of oil keeps changing.
3. Why aren’t all bottles now made of polyester? (Câu này mk hk chắc)
A. The price of oil and plastic has risen.
B. It is not suitable for containing gassy drinks.
C. The public like traditional glass bottles.
D. Shop keepers dislike re-usable bottles.
4. Manufacturers think polyester bottles are better than glass bottles because they
A. are cheaper.
B. are more suited to small sizes.
C. are more exciting to look at.
D. do not break easily.
5. Plastic containers for holding food in the same way as cans
A. have been used for many years.
B. are an idea that interests the plastics companies.
C. are possible, but only for hot food.
D. are the first things being made in the new factories.
13 tháng 1 2018
Chọn A
Dissolve = hòa tan, phân hủy. Melt = tan chảy. Heat = nóng lên. Soften = làm mềm đi. Dịch: chúng ta không nên dùng quá nhiều túi nilon bởi vì chúng rất khó phân hủy.
Đáp án D
hard: cứng >< soft: mềm