A
Anonymous
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Dear teachers,
I am sorry to come up with more questions so soon. I don't trust the book I bought as I used to after the discussions in the past several days. I think I must be careful about the answers.
1. There may several _____ but this is the best one fit for the context.
a. ways b. alternatives c. choices
The key is 'b'. My question is: What's wrong with 'c'? Is 'a' possible since it can mean 'method'?
2. The majority of people, about nine out of ten, are righthanded. ____until recently, people who were lefthanded were considered abnormal and once children showed this tendency they were forced to use their right hands.
a. Up b. Not
The key is 'a'. 'until recently' means 'not long ago' and 'up till now' means 'the time lasting till the present moment'.
My question is: Is there a phrase such as 'up until recently'? I can't find it in my dictionaries.
3. ( This is error correction exercise)
When people communicate face-to-face, they convey information in several ways apart from by the words they use. Thus, how often they make eye contact and how long they sustain that contact can indicate their degree of intimacy, interest or understanding of what they are communicating verbally.
The key to the second sentence is that an 'in' should be inserted between 'interest' and 'or' so that the part should be '.....interest in or underdering of what they are .....'. I don't see the reason of doing so.
4. Failure to do this often enough may result in the speaker interrupting himself or herself to ask if the other person is 'still there'. My question is: Is 'often enough' an idiomatic usage?
5. In sports,_____ contrast, doing things with the left hand or foot, is often an advantage.
a. by b. in
The key is 'b'. I think if we use 'in' we should use in the phrase 'in contrast to/with'. Am I right?
6. The ratio of the work done by the machine to the work done on it is called the efficiency of the machine. My question is what the sentence means? In 'work done on it' 'it' refers to the machine. How can we work on it? Does it mean to maintain it or repair it, etc?
I am looking forward to hearing from you.
Thank you in advance.
Jiang
I am sorry to come up with more questions so soon. I don't trust the book I bought as I used to after the discussions in the past several days. I think I must be careful about the answers.
1. There may several _____ but this is the best one fit for the context.
a. ways b. alternatives c. choices
The key is 'b'. My question is: What's wrong with 'c'? Is 'a' possible since it can mean 'method'?
2. The majority of people, about nine out of ten, are righthanded. ____until recently, people who were lefthanded were considered abnormal and once children showed this tendency they were forced to use their right hands.
a. Up b. Not
The key is 'a'. 'until recently' means 'not long ago' and 'up till now' means 'the time lasting till the present moment'.
My question is: Is there a phrase such as 'up until recently'? I can't find it in my dictionaries.
3. ( This is error correction exercise)
When people communicate face-to-face, they convey information in several ways apart from by the words they use. Thus, how often they make eye contact and how long they sustain that contact can indicate their degree of intimacy, interest or understanding of what they are communicating verbally.
The key to the second sentence is that an 'in' should be inserted between 'interest' and 'or' so that the part should be '.....interest in or underdering of what they are .....'. I don't see the reason of doing so.
4. Failure to do this often enough may result in the speaker interrupting himself or herself to ask if the other person is 'still there'. My question is: Is 'often enough' an idiomatic usage?
5. In sports,_____ contrast, doing things with the left hand or foot, is often an advantage.
a. by b. in
The key is 'b'. I think if we use 'in' we should use in the phrase 'in contrast to/with'. Am I right?
6. The ratio of the work done by the machine to the work done on it is called the efficiency of the machine. My question is what the sentence means? In 'work done on it' 'it' refers to the machine. How can we work on it? Does it mean to maintain it or repair it, etc?
I am looking forward to hearing from you.
Thank you in advance.
Jiang