There is a danger in paying too much attention to learners’ errors. While errors indeed reveal a system at work, the classroom language teacher can become so preoccupied ________ noticing errors that the correct utterances in the second language go unnoticed. In our observation and analysis of errors – for all that they do reveal about the learner – we must beware of placing too much attention on errors and not lose sight of the value of positive reinforcement of clearly expressed language that is a product of the learner’s progress of development. While the diminishing of errors is an important criterion ______ increasing language proficiency, the ultimate goal of second language learning is the attainment of communicative fluency.

      Another inadequacy in error analysis is an overemphasis on production data. Language is speaking and listening, writing and reading. The comprehension of language is as important as production. It so happens that production lends itself to analysis and thus becomes the prey of researchers, __________ comprehension data is equally important in developing an understanding of the process of SLA.

               (Brown, D. H. Principles of language learning and teaching. 2000. Adapted)

Read the following text and answer question.

Importance of Aquaculture 

Aquaculture involves the art, science and business of breeding aquatic animals and plants in fresh or marine waters for human use. It also extends to the marketing of such organisms in a controlled environment. It is a kind of agriculture, and therefore, it requires inputs such as clean water and nutrients. It also requires storage for harvested produce, transportation and marketing facilities.

Inputs often depend on the species that are farmed. Species lower on the aquatic food chain usually require less input, as they feed on microorganisms and are fine in just clean water. More inputs like fish or fishmeal, cereals, or grains are required, as we get higher on the food chain with species like salmon or tuna.

All over the world, the demand for seafood has increased because people have learned that seafood as part of regular diets are healthier and help fight cardiovascular disease, cancer, Alzheimer’s and many other major illnesses.

Aquaculture will add to wild seafood, and make it _______ and accessible to all.

Aquaculture business provides tax and royalty revenue to local governments. Besides, there is also potential revenue from exports. 

(Adapted from: https://goo.gl/qcbcfY. Access: 01/25/2018)