1. (2017高三上·山西月考) 语法填空

    You might want to think twice before purchasing(conventional) grown strawberries or spinach(菠菜). According to a new report from the Environmental Working Group(EWG), these foods are the most likely(pollute) with the pesticide.

    Even low levels of pesticide exposure can be harmful to infants, babies and young children,parents and caregivers should take measures to lower children's exposurespesticides while still(feed) them diets rich in healthy fruits and vegetables.

    Just last year, the red berry knocked apples and(hold) the title of the most polluted. The pesticide increased in strawberries because of out-of-season demand. The most polluted strawberry had traces of 20(vary) pesticides.

    Also moving up onlist this year is spinach. Spinach jumps from the(eight) to the second most polluted product. The study finds spinach samples contain more pesticides by weight than all other produce(test). In high doses, it can cause damage to the nervous system.