问题 多项选择题

混凝土配合比设计需要确定的材料用量比例关系包括()。

A.单位用砂量

B.水灰比

C.灰砂比

D.用砂率

E.单位用水量

答案

参考答案:B, D, E

解析:混凝土配合比的设计,实质上就是确定四种基本材料用量的三个比例关系,这三个比例关系可以用三个参数表示,即:水灰比、砂率和单位用水量。

完形填空

第四部分:书面表达(共两节,满分45分)

第一节:阅读表达(共5小题;每小题3分。满分15分)

阅读下面短文,并根据短文后的要求答题。(请注意问题后的词数要求)

Most cancers don’t develop overninght or out of nowhere, Cancer is largely predictable, and the end result of a decades-long process.Just a few simple changes in your daily life can significently reduce your risk. Here are some great tips.

1.Eat more broccoli,but steam it rather than microwaving it .

Broccoli is a caner-preventing super food, one you should eat frequently, But take note;a Spanish study found that microwaving broccoli destroys 97 percnet of the vegetable’s caner-protective substance. So steam it, eat it raw, or add it to soups and salads.

2.Pop a calcium supplement with vitamin D.

A study out of Dartmouth Medical School suggests that the supplements reduce the risk of colon cancer,

3.Add garlic to everything you eat,

Garlic contains a substance that may stimulate(促使)the immune(免疫)system’s natural defenses against cancer ,and may reduce tumor growth, Studies suggest that garlic can reduce the risk of stomach cancer by as much as 12%.

4.Every time you go to the bathroom. stop by the kitchen for a glass of water.

A major study published in The New England Journal of Medicine in 1996 found that men who drank sex 8-ounce glasses of water every day cut their risk of bladder(膀胱)cancer in half. Another study linked the amount of water women drank to their risk of colon cancer, with heavy water drinkers reducing their risk up to 45 percent,

5.Take up a tea habit,

The healing powers of green tea have been valued in Asia for thousands of years, In the West, new research shows that                           as well as heart disease, Some scientists believe that a chemical in green tea called EGCG could be one of the most powerful anticancer chemicals ever discovered.

76.What’S the best title of the passage?(Please answer within 8 words.)

                                                                                

77  Fill in the blank in the last paragraph with proper words.(Please answer within 10 words.)

                                                                                

78.Which sentence in the text is the closest in meaning to the following one?

A slight adjustment to our everyday life may free US of various cancers.

                                                                                

                                                                                

                                                                                

79.For what purpose does the writer mention several studies in the passage?(Please answer within l0 words.)   

                                                                                

                                                                                

80.Translate the underlined sentence in Part 4 into Chinese. 

                                                                                

填空题