In the phrase "keep somebody occupied", "occupy" means（).A、crowdedB

The phrase “keep a lid on”(Line 6, Paragraph 3) most probably means_____.

［A］ put an end to

［B］ set a limit on

［C］ tighten the control over

［D］ reduce the speed of

A、put an end to

B、set a limit on

C、tighten the control over

D、reduce the speed of

A.Dry and factual

B.Humorous and witty

C.Lucid and matter-of-fact

D.aggressive

This is the conclusion of the anthropologist Margaret Mead about the way in which the roles of men and women in society should be distinguished.

If talk and print are considered it would seem that the formal emancipation of women is far from complete. There is a flow of publications about the continuing domestic bondage of women and about the complicated system of defences which men have thrown up around their hitherto accepted advantages, taking sometimes the obvious form. of exclusion form. types of occupation and sociable groupings; and sometimes the more subtle form. of automatic doubt of the seriousness of women's pretensions to the level of intellect and resolution that men, it is supposed, bring to the business of running the world.

There are a good many objective pieces of evidence for the erosion of men's status. In the first place, there is the widespread postwar phenomenon of the women Prime Minister, in India, Sri Lanka and Israel.

Secondly, there is the very large increase in the number of women who work, especially married women and mothers of children. More diffusely there ate the increasingly numerous convergences between male and female behaviour: the approximation to identical styles in dress and coiffure, the sharing if domestic tasks, and the admission of women to all sorts of hitherto exclusively male leisure-time activities.

Everyone carries round with him a fairly definite idea of the primitive or natural conditions of human life. It is acquired more by the study of humorous cartoons than of archaeology, but that does not matter since it is not significant as theory but only as an expression of inwardly felt expectations of people's sense of what is fundamentally proper in the differentiation between the roles of the two sexes. In this rudimentary natural society men go out to hunt and fish and to fight off the tribe next door while women keep the fire going. Amorous initiative is firmly reserved to the man, who sets about courtship with a club.

The phrase "men's sureness of their sex role" in the second line, first paragraph suggests that they ______.

A．are confident in their ability to charm women

B．take the initiative in courtship

C．have a clear idea of what is considered "manly"

D．tend to be more immoral than women are

Chokwe Selassie is on a mission to help drivers avoid potholes(路面坑洼). The eighth-grader was inspired to kick off his mission on a recent morning, when his mother was driving him to school. Their car was damaged as it went over a huge pothole in the middle of the street in their hometown of Jackson, Mississippi. "I decided I was going to do something about the pothole prob-lem in my city," Chokwe says. His solution: an app(手机应用) that warns drivers when there is a pothole ahead.

Chokwe developed the app with his friends Rodriguez Ratliff and Emmanuel Brooks. "When the app detects a potheole, it is highlighted(突出显示) in red," Chokwe says. "And if you get close to the pothole, your phone will warn you. " Drivers can also use the app to report any pot-holes" they encounter, and to look for other routes they can take to avoid roads that have them.

The app relies on Current available information about the streets of Jackson. "It works by u-sing the city&39; s 311 call system, so it uses information already stored in a database," Chokwe says.

(79) Through the call system, citizens dial 3-1-1 to report non-emergency problems--whiCh in-clude potholes. Chokwe and his friends determined that focusing on the 10 busiest streets in Jack-son would give them a large enough sample size to test the prototype(原型).

(80) Although the app isn&39; t yet available for sale, Chokwe is already looking for ways to im-prove it. The prototype remains limited&39;to 10 streets in Jackson, but he hopes to add more, so that it includes every street in the city. And then he wants to go even farther. "I want to keep working on the app until it&39; s nationwide," Chokwe says.

Which of the following is the best title for the passage？

A.A Solution to Traffic Jams

B.An App to Detect Potholes

C.Pothole Problems in Big Cities

D.Poor Road Conditions

The phrase kick off in Paragraph 1 is closest in meaning to__________.A.leave

B.invent

C.begin

D.shift

People use the 311 call system to report__________.A.emergencies

B.terrorist attacks

C.non-emergencies

D.child abuse

The prototype focuses on __________ streets in Jackson.A.10

B.15

C.20

D.25

According to the passage, which of the following statements is TRUE？A.Chokwe developed the app all by himself.

B.People can buy this app from the online store.

C.His mother' s car was once damaged over a pothole.

D.The app works by using the city's 911 call system.

请帮忙给出每个问题的正确答案和分析，谢谢！

Until a few years ago, the most doctors could do was to counsel patients with bad breath about oral cleanliness. Now they are finding new ways to treat the usually curable condition.

Bad breath can happen whenever the normal flow of saliva slows. Our mouth are full of bacteria feeding on protein in bits of food and shed tissue. The bacteria emit evil smelling gases, the worst of which is hydrogen sulfide.

Mouth bacteria thrive in airless conditions. Oxygen rich saliva keeps their numbers down. When we sleep, for example, the saliva stream slows, and sulfide producing bacteria gain the upper hand, producing classic "morning breath".

Alcohol, hunger, too much talking, breathing through the mouth during exercise-anything that dries the mouth produces bad breath. So can stress, though it' s no understood why. Some people' s breath turns sour every time they go on a job interview.

Saliva flow gradually slows with age, which explains why the elderly have more bad breath trouble than younger people do. Babies, however, who make plenty of saliva and whose mouths contain relatively few bacteria have characteristically sweet breath.

For most of us, the simple dry-mouth variety of bad breath is easily cured. Eating or drinking starts saliva and sweeps away many of the bacteria. Breakfast often stops morning breath. Those with chronic dry mouth find that it helps to keep gum, hard candy, or a bottle of water or juice around. Brushing the teeth wipes out dry-mouth bad breath because it clears away many of the offending bacteria.

Surprisingly, one thing that rarely works is mouthwash. The liquid can mask bad-breath odor with its own smell but the effect lasts no more than an hour. Some mouthwashes claim to kill the bacteria responsible for bad breath. The trouble is, they don' t necessarily reach all offending germs. Most bacteria are well protected from mouthwash under thick layers of mucus. If the mouth wash contains alcohol--as most do--it can intensify the problem by drying out the mouth.

The phrase "emanate from" in Paragraph 1 most probably means" ______".

A．thrive on

B．account for

C．originate from

D．descend from

A.请求

B.短语

C.理由

In the phrase “the tongues of fire”, the word fire is semantically motivated.()