Child models are very much in demand all across the world. Many magazines and online stores that sell products for children like their models young.For this reason,they seek out children who can model clothing and have no problem posing（摆姿势）and smiling for the camera．Those who are seeking out child models for thelr advertising can go to online modeling sites and view plotures of children who are web models．They can take a look at their portfolio（整套照片）and decide whether they will accept them．
Parents who are seeking to get their children into the modeling business can also create a portfolio for ther children and put them online.They can look for jobs for their chldren through an online modeling site,or they can wait for job offers for their children.These online sites act as web modeling agency for models young and old alike．Anyone who has the desire to be a model can get a portfoilo together and join the site．
If you have a child who you want to be a model，you should frst stalt a portfolio for him or
her and Then join an online modeling agency.Once you join the agency,you can then start to look for jobs,Clients（客户）will post jobs that can be found in the search．You can look for jobs for young models and see if your child will fit what the client is looking for. In many cases，the client will send clothing for the child to wear and a descriptlon of poses and the job can be done close to home.
Online modeling agencies are not only for child models.Older models,teen models,men and women can model for these slies． A great deal of the modeling is for online websites．Ths is an entirely new field in the world of modeling and much easier to get into than the older modeling agencies．There is no traveling or expensive photo shoots needed．All that is needed to make children into models is a nice portfolio and a photogenic（上相的）child．
71. Child models are needed to____________.
A.Create more job offers
B.set the fashion for children
C.increase the sales of child products
D.manage online stores that sell teen magazines
72．The underlined Word "they" in Paragraph 1 refers to_______．
A.parents
B.chld models
C.online modeling sites
D.people looking for child models for advertising
73. What should parents do if they`d like their children to become models?
A.Train them to hold special poses.
B.Choose them beautiful clothes．
C.Take expensive photos of them．
D.Put their portfolio on online modeling sites．
74. Why are online modeling agencise popular?
A.Because They are easily accessible to most people.
B.Because they charge no fees for their service.
C.Because this is an entirely new field．
D.Because this can make a child more photogenic.
75．This passage is mainly about______．
A.a growing need for child models
B.an increase in modeling agencies
C.the change in the world of modeling
D.the attraction of the world of modeling