Afieldtripisajourneybyagroupofpeopletoaplaceawayfrom61(...

问题详情：

A field trip is a journey by a group of people to a place away from 61 (they)normal environment.

The purpose of the trip is usually observation for 62 (educate),non-experimental research or to provide students with experiences outside their everyday 63 (activity),such as going 64 (camp) with their teachers and aim of this research is to observe the subject in its natural state and 65 (possible) collect samples（标本） western culture people first come across this method during school years 66 classes are taken on school trips to visit a geographical feature of the of the early research into the natural sciences 67 (be)of this les Darwin is considered to be 68 important example of someone who has contributed 69 science through the use of field trips.

        70 (reduce)risks and expenses,most school systems now have set up field trip procedures that consider the entire trip from estimation,approval to scheduling.

【回答】

r               ation              vities         ing          ibly         

                                                              reduce

知识点：语法填空

题型：未分类