Pure mathematics consists entirely of such asseverations as that, if such and such a proposition is true of anything, then such and such another proposition is true of that thing. It is essential not to discuss whether the first proposition is really true, and not to mention what the anything is of which it is supposed to be true. If our hypothesis is about anything and not about some one or more particular things, then our deductions constitute mathematics.

Bicycle-sharing in Shanghai

in accordance with

account for

fond of

bump into

be concerned with

1、近期工作上的压力或许导致他行为怪异。

2、我祖父热衷于向我的朋友们提供忠告。

3、该故事涉及十九世纪的一个俄国家庭。

4、根据其遗愿，他安葬于故里。

5、上周我在一次会议上跟她邂逅。

Pure mathematics consists entirely of such asseverations as that, if such and such a proposition is true of anything, then such and such another proposition is true of that thing. It is essential not to discuss whether the first proposition is really true, and not to mention what the anything is of which it is supposed to be true. If our hypothesis is about anything and not about some one or more particular things, then our deductions constitute mathematics.

Humans, unlike many other animals, are omnivores. We require both vegetable matter and meat to be fully healthy (although some humans manage to live reasonably healthily whilst consuming no animal products at all, finding their protein mainly in nuts and seeds).To carry out its many complicated functions, the human body requires different chemicals and substances. All of the nutrition we take in can be put in one of seven categories. These are: carbohydrates, proteins, fibre, minerals, vitamins, fats and water.

Carbohydrates provide the body with energy.

Proteins allow the body to repair itself and grow.

Fibre aids the digestive system.

Minerals and vitamins are required for many reasons. Deficiencies in any vitamin or mineral can lead to illnesses. Vitamins are essential for normal growth and development.

Fats are often unnecessary, and many are bad for you. The body does not need to take in most fats, but the fatty acids omega-3 and omcga-6 are necessary.　　The body is around 70% of water. If water is not consumed, the body will dehydrate. The body loses water in excretion, sweating and breathing.

It is advised that you should have a balanced diet, taking in food from each of the food groups, in proportion.

The investment appraisal published by the Southern board was______many aspects.

Every once in a while the government here passes out an order banning shop keepers from providing plastic bags to customers for carrying their purchases, with (31)lasting effect. Plastic bags are very popular (32) both retailers as well as consumers because they are cheap, strong, lightweight, functional, (33)well as a hygienic means of carrying food as well as (34) goods. Even though they are one of the modem conveniences that we seem to be unable to do(35), they are responsible for causing pollution, (36)wildlife, and using(37)the precious resources of the earth. About a hundred billion plastic bags are used each year in the US(38). And then, when one considers the huge economies and populations of India, China, Europe, and other parts of the world, the numbers can be (39). The problem is further exacerbated by the developed countries(40)off their plastic waste to developing countries like India.

The government official made a speech______his actions.

To find out the truth, I think we must______the past for some link with what is happening here today.

His great name_______ in our history.

The purpose of the program is to______the needs of the local people.