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P A T H W A Y S 57 V o c a b u l a r y E x t E n s i o n 57 W o r d P a r t n e r s adjective + contribution Some collocations are in adjective + noun form. Adding an adjective before the word contribution gives more information about the kind of contribution being described. Below are some common collocations with contribution. positive contribution small contribution scientific contribution large contribution significant contribution generous contribution financial contribution A circle the correct word to complete each sentence. 1. By taking part in scientific online experiments, participants feel like they are making a significant / financial contribution to advancing human knowledge. 2. Most crowdsourcing participants are not professional scientists. However, projects are carefully designed so that anyone can make a generous / scientific contribution. 3. Crowdfunding projects raise money through financial / positive contributions from a large number of people. 4. Anyone who makes a contribution to a crowdfunding campaign, even if it is a small / large contribution, can make a difference. 5. People who make large / scientific contributions to crowdfunding campaigns receive certain rewards. For example, donors who gave over $2,299 to one campaign received a 3D printer. W o r d L i n k -al The suffix -al can mean "relating to." Add -al to some nouns to make them adjectives. For example, global means "relating to the whole world" (i.e., the globe). B complete each sentence using a word from the box below. environmental global normal tribal virtual 1. Greenpeace and other groups use the Internet to inform the public about pollution issues. 2. For many teenagers today, it is to communicate with each other mainly through social media websites. 3. Some researchers think that communities are not a good substitute for meeting people face-to-face. 4. Some leaders in the remote areas of Brazil are concerned about the threat of logging to their traditional way of life. 5. English has become a(n) language—there are English speakers in most countries around the world today. Vo c abu l ary E x t E nsi o n u n i t 3 SUPPLEMENTARY MATERIAL FOR ADDITIONAL PRACTICE