lexical-phrases是什么意思

汉译英上：Problems of taking a lexical approach
原文：Problems of taking a lexical approach
PROBLEM 1:CORPORA AND TEACHING ‘REAL’ ENGLISH
Real English,corpora,and ‘learner overload’
The case of you must be joking discussed previously illustrated that corpus data requires adjustment before it can be allowed to serve pedagogical ends:for instance,untypical or culturally inappropriate items will need to be removed from the handout which is given to the learners.However,it is likely that further adjustments will still be required,due to teachability and learnability factors:that is,since anecdotal evidence (and common sense) suggests there is a limit to the number of items learners can learn at any one time (i.e.in a single lesson),including every lexical variant at every opportunity will complicate the issue unnecessarily.Learners will be overwhelmed and will fail to learn any—or at least learn fewer—lexical strings less well than if they had been presented with a smaller,more manageable list in the first place.So implementing a lexical approach requires a delicate balancing act:on the one hand,the teacher will wish to consult the appropriate corpora to avoid the ersatz English of the textbooks which reflects little of the language’s lexical variations and predominant patterns.On the other hand,however,teachers will be anxious to ensure learners are not “overloaded” with too much lexis which would result from exposing the class to as many lexical strings as the corpus describes (cf.Cook 1998).We should be aware of the dangers of teaching learners unusual or deviant variations when,since we have neither the time (as teachers) or the space (as materials writers) to include more than some variations in our lessons or coursebooks,we should ensure these are the variations which will be most useful to the learners.Hence intuition regarding both linguistic and pedagogical matters needs to be exercised:in addition to asking ourselves whether any of the attested corpus examples are untypical in the skill/genre we are attempting to teach (e.g.academic writing:the research paper),pedagogical judgements such as the accessibility/difficulty/volume of material also require reflection,since,while corpora can tell us much,pedagogical concerns such as these are clearly not addressed by the data (Cook 1998).
翻译无需太精确,但软件翻译就免了,另,corpora在这里可译为“组块”

几个小题,
1.The lexical sense relation between flour and flower is antonymy.
A.错误
B.正确
满分：2.5 分
2.Associative meaning can be further divided into connotative meaning,social meaning,affective meaning reflected meaning and collocative meaning.
A.错误
B.正确
满分：2.5 分
3.The standard form of British English can be can be represented by the BBC broadcast.
A.错误
B.正确
满分：2.5 分
4.In holophrastic stage,children use single words to represent various meanings.
A.错误
B.正确
满分：2.5 分
5.Adjacency pairs refer to having the right to speak by turns.
A.错误
B.正确
满分：2.5 分
6.The term variety is the label given to the form of a language used by any group of speakers or used in a particular field.
A.错误
B.正确
满分：2.5 分
7.An educational plan is an official document which authoritatively determines the content and principles of teaching and learning.
A.错误
B.正确
满分：2.5 分
8.Both pretty and handsome mean good-looking but they differ in reflected meaning.
A.错误
B.正确
满分：2.5 分
9.Pidgin refers to the fact that a speaker changes from one language to the other in different situations or when talking about different topics.
A.错误
B.正确
满分：2.5 分
10.Mental processes are processes of sensing.
A.错误
B.正确
满分：2.5 分
11.“He sat alone by himself” is a statement of tautology.
A.错误
B.正确
满分：2.5 分
12.The objective of teaching a foreign language in a communicative syllabus is developing learner’s linguistic competence.
A.错误
B.正确
满分：2.5 分
13.The structural syllabus takes the text as the basic teaching unit.
A.错误
B.正确
满分：2.5 分
14.Speakers consider the matter of face for themselves and others.Based on this observation,Leech (1983) proposes speech acts.
A.错误
B.正确
满分：2.5 分
15.Second language acquisition is a complex process that involves various factors.
A.错误
B.正确
满分：2.5 分

uses less common lexical items with some awareness of style and collocation.
这里的awareness是什么意思?这句话应该怎么翻译?