Tham khảo tài liệu 'writting toefl detail 3', ngoại ngữ, anh ngữ phổ thông phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 52 TOEFL EXAM ESSENTIALS question will be harder. If you answer incorrectly your next question will be easier. Here is an overview of the differences between the two tests Computer Test Structure Paper-and-Pencil Structure and Written Expression 15-20 minutes 25 minutes 20-25 questions 40 questions Computer adaptive the level of difficulty of questions is based on each test-taker s ability. Test takers answer the same questions. Question types are mixed together and presented at random. Question types fall into two sections Part A 15 sentencecompletion questions Part B 25 questions in which you identify grammar mistakes Once you submit an answer you cannot change it. You can return to previous questions and change your answers. Your score on the structure section is combined with your score in the writing portion of the test. Your score on this section is not combined with another part of the test. STRUCTURE 53 MAKING SENSE OF SENTENCES The grass grows. This is an example of the basic unit of thought in the English language the sentence. Sentences must have two key parts a subject and a predicate and express a complete thought. The subject grass names what the sentence is talking about. The predicate is a verb or verb phrase grows that tells us something about the subject. The subject of a sentence may be singular meaning that there is only one subject. Subjects may also be compound meaning they have more than one subject The grass and the flowers grow. The predicate may also be singular or compound. For example here the predicate is singular I ate a bowl of spaghetti. In the following example the predicate is a compound I ate a bowl of spaghetti and drank two glasses of milk. WHAT IS A CLAUSE Like sentences clauses are groups of words that have a subject and a predicate. Clauses may be independent or dependent. An independent clause stands alone and expresses a complete idea as in this example Ximena walked on the grass. When a sentence has more than one .
