With the world's population estimated to grow from six to nine billion by 2050, researchers.
出自-2011年12月阅读原文
It is supposed to last nine weeks.
出自-2012年12月听力原文
I first met Joe Ganz when we were both nine years old, which is probably the only reason he's one of my best friends.
出自-2012年6月听力原文
So, for example, my sister's birthday is December 9th and her golden birthday would have been the year she turned nine years old.
2017年12月四级真题（第二套）听力 Section B
That’s the conclusion of a recently released study, which analysed 259 bottles from 11 brands sold in nine countries, revealing an average of 325 plastic particles per litre of water.
2019年12月四级真题（第二套）阅读 Section A
The sea slugs are so good at gathering energy from the sun that they can live up to nine months without having to eat any food.
2019年12月四级真题（第三套）阅读 Section C
The group that scored high on all nine of the risk behaviors was most likely to show symptoms of depression; in all, nearly 15% of this group reported being depressed, compared with just 4% of the low-risk group.
出自-2016年12月阅读原文
The study's authors surveyed 12,395 students and analyzed nine risk behaviors, including excessive alcohol use, illegal drug use, heavy smoking, high media use and truancy ( ' , 逃学 ).
出自-2016年12月阅读原文
Some 13% scored high on all nine of the risk behaviors.
出自-2016年12月阅读原文
The average monarch lives about nine month.
出自-2014年6月听力原文
In one experiment, people were told to play the role of consultant and bill their time by either nine dollars an hour or ninety dollars an hour
出自-2014年6月听力原文
They start to lay eggs when they are nine months old.
出自-2014年6月听力原文
Nearly nine million Americans alone suffer from the illness.
出自-2013年6月听力原文
Dehl and her fellow researchers wanted to find out if that was true, so they embarked on a series of nine experiments in the lab and in the field testing people's enjoyment in the presence or absence of a camera.
2018年6月六级真题(第二套)阅读 Section C
Every month it remains unopened costs between nine and 10 million euros.
2019年12月六级真题（第二套）听力 Section C
Looking back now, nine years later, I can't remember exactly what it was about these universities that made them seem so much better.
2018年6月六级真题（第三套）阅读 Section B
nine decades ago, leading economists predicted that technological advances and rising productivity would mean that would be working a 15-hour week.
2019年12月六级真题（第二套）听力 Section C
Some 13% scored high on all nine of the risk behaviors.
2016年12月六级真题（第二套）阅读 Section C
The first year it was available, Coca-Cola averaged nine servings a day across all the Atlanta soda fountains where it was sold.
2017年12月六级真题（第一套）阅读 Section C
The group that scored high on all nine of the risk behaviors was most likely to show symptoms of depression; in all, nearly 15% of this group reported being depressed, compared with just 4% of the low-risk group.
2016年12月六级真题（第二套）阅读 Section C
The problem was that I barely knew anything about 3D printing, and I had only nine months to figure out how to print five fashionable looks.
2016年12月六级真题（第二套）听力 Section C
The rocky views glimpsed by Venera nine and other Russian landers suggested a tortured volcanic history.
2019年6月六级真题（第二套）听力 Section C
The study involved ordinary adults watching video clips of babies nine months or younger.
2019年12月六级真题（第一套）听力 Section C
The study's authors surveyed 12, 395 students and analyzed nine risk behaviors, including excessive alcohol use, illegal drug use, heavy smoking, high media use and truancy(逃学).
2016年12月六级真题（第二套）阅读 Section C
After nine weeks, they reported what happened.
2015年高考英语上海卷 完形填空 原文
By the time I was nine, I was dancing five days a week.
2018年高考英语全国卷2 听力 原文
Having created nine such ice reserves, norphel calculates that he has stored about 200, 000m3 of water.
2017年高考英语江苏卷 阅读理解 阅读D 原文
I had an early start at the age of nine with a role in a 1990s TV series, but it wasn't until I finished film studies that I pursued my career as an actress.
2017年高考英语天津卷 阅读表达 原文
If the self-centred guest arrives late, the nine others at the table set for ten will have to wait.
2015年高考英语陕西卷 阅读理解 阅读B 原文
Of the nineteen recognized polar bear subpopulations, three are declining, six are stable, one is increasing, and nine lack enough data.
2019年高考英语全国卷I 语法填空 原文
The nine-year-old boy decided then that he would be an artist.
2017年高考英语浙江卷（6月） 阅读理解 阅读A 原文
Then nine days later, a fire burned the approached to the ground.
2017年高考英语浙江卷（6月） 完形填空 原文
To my surprise, I found that she would pack a paper bag full of canned goods and head out every morning at about nine.
2016年高考英语上海卷 语法填空 A 原文
When I was nine years old, I loved to go fishing with my dad.
2015年高考英语广东卷 阅读理解 阅读B 原文
But the regular time it takes to get a doctoral degree in the humanities is nine years.
出自-2011年考研阅读原文