2019学年度译林版必修三Unit2Period4Grammar and usage学案

阅读理解

阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项，并在答题卡上将该项涂黑。

　　Join AAAS to unlock access to the latest science news and research-and to support the people making it happen．

　　When you join AAAS，the publisher of Science，you're not just getting the latest news and research from across the globe．You also become part of the world's largest general scientific society -a real community of scientists and science supporters．

　　Your membership helps us maintain support for science education，advocate for responsible public policies，and advance science for the benefit of all．

　　All memberships include 50 issues of Science，with your choice of print or distal delivery．You'll also get unlimited access to all our online articles at sciencemag.org-from any device and anywhere-and lots of other exclusive AAAS benefits．

　　Become a member today for as little as $50 and we'll also send you a limited-edition T-shirt-but only while supplies last．Hurry and join now!

　　Please choose your AAAS membership and Science delivery type.

All memberships include weekly issues of Science，unlimited access to Science News online，and other exclusive AAAS benefits．