demography的音標(biāo)是[d??m?gr?f?]，翻譯為“人口統(tǒng)計(jì)學(xué)；人口分布”。

速記技巧：將“demography”拆分為“de-mo-graphy”，其中“de”可以理解為“除去”，“mo”可以理解為“眾多”，“graphy”可以理解為“記錄、描繪”，由此可以聯(lián)想到該單詞的含義為“人口統(tǒng)計(jì)”。

Demography的詞源：

詞根：demography

詞源：希臘語單詞“demos”，意為“人民”或“居民”，加上詞綴“-graphy”，表示記錄或描述，因此，demography意為“人口統(tǒng)計(jì)”或“人口研究”。

變化形式：

過去式：demographed 或 demographed

過去分詞：demographed

現(xiàn)在分詞：demographing

相關(guān)單詞：

1. Demographic：人口統(tǒng)計(jì)數(shù)據(jù)，人口統(tǒng)計(jì)學(xué)家。

2. Population：人口，人群。

3. Birth rate：出生率，指在一定時(shí)期內(nèi)(通常為一年)新生嬰兒的數(shù)量與同期平均育齡婦女?dāng)?shù)量的比值。

4. Migration：移民，遷徙。

5. Age structure：年齡結(jié)構(gòu)，指人口中不同年齡的人口在總?cè)丝谥兴嫉谋戎亍?/p>

6. Sex ratio：性別比例，指在一定時(shí)點(diǎn)、一定地區(qū)、一定時(shí)期內(nèi)某人口種群內(nèi)兩性人數(shù)的比例。

7. Urbanization：城市化，指人口向城市地區(qū)集中的過程。

8. Fertility rate：生育率，指在一定時(shí)期內(nèi)(通常為一年)平均每位育齡婦女平均生子女?dāng)?shù)。

9. Census：人口普查，對一個(gè)國家或一個(gè)地區(qū)在一定時(shí)期內(nèi)(某一年份)人口數(shù)量、結(jié)構(gòu)和分布進(jìn)行的科學(xué)調(diào)查統(tǒng)計(jì)活動(dòng)。

10. Demographic analysis：人口分析，對人口數(shù)據(jù)和信息進(jìn)行的分析和解讀。

以上這些詞匯都與demography相關(guān)，通過了解它們的詞源、變化形式和含義，可以更好地理解人口統(tǒng)計(jì)學(xué)的概念和相關(guān)問題。

Demography常用短語：

1. population pyramid：人口金字塔

2. birth rate：出生率

3. death rate：死亡率

4. migration rate：遷移率

5. population density：人口密度

6. population growth rate：人口增長率

7. age structure：年齡結(jié)構(gòu)

例句：

1. The population pyramid in this region shows a shift towards the younger age groups.

該地區(qū)的人口金字塔顯示年輕年齡組正在向該地區(qū)轉(zhuǎn)移。

2. The birth rate has been steadily increasing over the past few years.

近年來，出生率一直在穩(wěn)步增長。

3. The death rate has remained constant over the past decade.

在過去十年中，死亡率一直保持不變。

4. The migration rate from rural to urban areas has been increasing steadily.

從農(nóng)村到城市地區(qū)的遷移率一直在穩(wěn)步增長。

5. The population density in this city is much higher than that of its neighboring towns.

這個(gè)城市的人口密度比鄰近城鎮(zhèn)高得多。

6. The population growth rate of this country has exceeded that of its neighboring countries.

這個(gè)國家的人口增長率已經(jīng)超過了鄰國的增長率。

7. The age structure of the population has undergone significant changes in recent years.

近年來，人口年齡結(jié)構(gòu)發(fā)生了重大變化。

英文小作文：

The population demography of our country is constantly changing, with new generations coming into the world and others passing away. This process affects our society in many ways, from the economy to the education system to the healthcare system. Understanding the demography of our country is crucial for making informed decisions about how to allocate resources and how to plan for the future.

In the past few decades, we have seen a significant increase in the birth rate, which has led to a surge in the number of young people in our society. This has created challenges for providing education and employment opportunities for this group of people, but it also represents a potential resource for future economic growth. On the other hand, the death rate has been decreasing, which is a positive trend that will help us to age more gracefully and reduce the burden on our healthcare system.

The population density is another important aspect of demography that we need to keep track of. In some urban areas, the population density is extremely high, leading to crowding and other problems. On the other hand, in rural areas, the population density is usually lower, leading to more open spaces and opportunities for agriculture and other forms of rural development.

Overall, demography is an essential field of study that helps us to understand our society and plan for its future. By keeping track of these trends and making informed decisions, we can ensure that our country remains strong and prosperous for future generations.