—People should still keep a social distance these days.
—Yes. A large number of masks ________ in the following months.
A.needed B.are needed C.were needed D.will be needed
九年级英语单选题中等难度题
—People should still keep a social distance these days.
—Yes. A large number of masks ________ in the following months.
A.needed B.are needed C.were needed D.will be needed
九年级英语单选题中等难度题查看答案及解析
---Douyin APP is very popular among young people these days.
---Yes, I know that. It creates many grassroots heroes, _ Zhang Xinyao.
A.instead of B.such as C.because of D.except for
九年级英语单选题中等难度题查看答案及解析
—Chinese people are worried about the food they eat these days.
—Yes, the food safety is a serious ________ in our country. We should try to solve it.
A．subject B．program C．problem D．opinion
九年级英语单项填空简单题查看答案及解析
— These days the TV series In the Name of the People (《人民的名义》) is very hot. Have you seen it?
—Yes, it’s quite perfect play, so I can’t wait to turn on the TV when I get home.
A. an B. a C. the D. /
九年级英语单项填空中等难度题查看答案及解析
Keeping a busy social life among lots of friends may keep people thinner than spending several hours in a gym, according to scientists. Scientists believe social activities can release a brain chemical that changes white fat into brown fat. Brown fat burns calories (卡路里). To produce heat, while white fat keeps calories and make us fatter.
Changing white fat into brown fat is very difficult, generally requiring long-term exposure to cold conditions or making part of the body’s nervous (神经的) system active. However, scientists from Ohio State University think that having a busy social life is an even better way of carrying out this change.
Tests on mice showed that those lived in large communities and had more space and toys lost half of their stomach weight in four weeks, even if they ate more than those in boring, lonely environments. Researchers said that social excitement helps lose weight.
However, social activities make some people worried. Study writer Dr Matthew During said, “I’m still amazed at the degree of losing fat that happens. We often think of stress (压力) as a negative thing, but some kinds of stress can be good for your health.”
Explaining how new technology had reduced the chance for people to communicate face to face, he added, “It’s not just because of being short of exercise and high calorie foods, but an increasing lack of social activities. Loneliness is a deep cause of cancer and death, it’s just as dangerous as smoking. Social activities are very important.
根据短文内容选择最佳答案。
1.The underlined word “exposure” means________in Chinese.
A.勘探 B.适应 C.暴露
2.When people take social activities, a brain chemical can change white fat into________.
A.brown fat B.calories C.energy
3.According to the tests on mice, ________.
A.Taking more social activities will work for losing weight, even if you eat more.
B.Mice living in boring and lonely environments will gain weight although they eat less.
C.The results from test on mice aren’t fit for humans.
4.Which of the following is TRUE according to the passage?
A.Brown fat keeps calories and make people fatter while white fat burns calories to produce heat.
B.To change white fat into brown fat, long-term exposure to cold conditions is required.
C.Unlike smoking, loneliness can cause cancer and even death.
5.The best title for the passage can be ________.
A.Social Activities Help Lose Weight
B.Brown Fat and White Fat
C.Loneliness Is Dangerous
九年级英语阅读单选中等难度题查看答案及解析
If we travel a short distance, we should walk _____ taking a bus. Then we’ll be greener people.
A.instead of B.rather C.while D.but
九年级英语单项填空中等难度题查看答案及解析
Humans are social animals. They live in groups all over the world. As these groups of people live apart from other groups, over the years and centuries they develop their own habits and ideas, which form different cultures. One important particular side of every culture is how its people deal with time.
Time is not very important in non industrial societies. The Nuer people of East Africa, for example, do not even have a word TIME that is in agreement with the abstract thing we call time. The daily lives of the people of such non industrial societies are likely to be patterned around their physical needs and natural events rather than around a time schedule (时间表) based on the clock. They cook and eat when they are hungry and sleep when the sun goes down. They plant crops during the growing seasons and harvest them when the crops are ripe. They measure time not by a clock or calendar(日历), but by saying that an event takes place before or after some other event. Frequently such a society measures day in terms of “sleeps” or longer periods in terms of “moons”. Some cultures, such as the Eakinos of Greenland measure seasons according to the migration of certain animals.
Some cultures which do not have a written language or keep written records have developed interesting ways of “telling time”. For example, when several Australian aborigines want to plan an event for a future time, one of them places a stone on a cliff or in a tree. Each day the angle of the sun changes slightly. In a few days, the rays of the sun strike the stone in a certain way. When this happens, the people see that the agreed - upon time has arrived and the event can take place.
In contrast (成对比), exactly correct measurement of time is very important in modern, in detribalized societies. This is because industrialized societies require the helpful efforts of many people in order to work. For a factory to work efficiently (well, quickly and without waste), for example , all of the workers must work at the same time, Therefore, they must know what time to start work in the morning and what time they may go home in the afternoon. Passengers must know the exact time that an airplane will arrive or depart. Students and teachers need to know when a class starts and ends. Stores must open on time in order to serve their customers. Complicated (复杂的) societies need clocks and calendars. Thus, we can see that if each person worked according to his or her own schedule, a complicated society could hardly work at all.
1.By saying “Humans are social animals”, the author means ________.
A.they live all over the world.
B.they are different from other animals
C.they live in one area as a whole
D.they are divided into many groups
2.Time is not very important in non industrial societies. This is because people in those societies ________.
A.don’t have the word TIME in their languages
B.don’t get used to using clocks and other timepieces
C.don’t measure time in their daily lives
D.don’t need to plan their daily lives around an exact time schedule
3.The Australian aborigines’ way of “telling time” is based on ________.
A.the change of the sun rays
B.the movement of the earth in relation to the sun
C.the position of the stone
D.the position of the tree or the cliff
4.Which of the following night be the best title for this passage?
A.Time and Culture
B.The Measurement of Time
C.Time schedule and Daily Life
D.Clock, Calendar and Society
九年级英语阅读单选简单题查看答案及解析
As you see, the number of cars on the roads _____ these days.
A. keeps rising B. keep rising C. keep to rise
九年级英语单项填空中等难度题查看答案及解析
Miss. Li, , is active all the time. Although she has not been well these days, her class is still full of laughter.
A. as you know B. start with
C. all in all
九年级英语单选题中等难度题查看答案及解析
－We should wait in line in the dining hall.
－Yes, ______ of the students should keep the rule in mind.
A. both B. either C. all D. neither
九年级英语单项填空中等难度题查看答案及解析