语法填空和短文改错专项练习

语法填空和短文改错训练（一） Ⅰ.语法填空 (2019·贵阳测考)In recent years，experts 1．________ (begin) to talk more about certain “superfoods”that are packed with vitamins and other healthy things. These superfoods are mostly fruits，vegetables and some types of fish. Sadly，even though these foods 2. ________ (aim) at families，many parents are still guilty of 3. ________ (feed) unhealthy foods to their children. New research shows that part of the problem may be economic. Superfoods are rarely the 4．________ (cheap) thing in the store. Also，nutrition experts claim that it can take children fifteen times to try a new food before they actually accept it. 5．________，many low­income families cannot afford to buy foods that their children may end up not eating. Unfortunately，this results in low­income children eating fewer vegetables，and this may be a reason 6．________ poor people in many countries are either overweight 7. ________ more likely to get sick.8. ________ (lucky)，many schools are now providing 9. ________v